Author: "Instituto Português de Investigação do Mar e da Atmosfera (IPMA)" / Topic: 13. climate action - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"Instituto Português de Investigação do Mar e da Atmosfera (IPMA)"' showing total 17 results

Start Over Author "Instituto Português de Investigação do Mar e da Atmosfera (IPMA)" Topic 13. climate action

17 results on '"Instituto Português de Investigação do Mar e da Atmosfera (IPMA)"'

1. The CISE-LOCEAN sea water isotopic database (1998–2021)

Author: Gilles Reverdin, Claire Waelbroeck, Catherine Pierre, Camille Akhoudas, Giovanni Aloisi, Marion Benetti, Bernard Bourlès, Magnus Danielsen, Jérôme Demange, Denis Diverrès, Jean-Claude Gascard, Marie-Noëlle Houssais, Hervé Le Goff, Pascale Lherminier, Claire Lo Monaco, Herlé Mercier, Nicolas Metzl, Simon Morisset, Aïcha Naamar, Thierry Reynaud, Jean-Baptiste Sallée, Virginie Thierry, Susan E. Hartman, Edward M. Mawji, Solveig Olafsdottir, Torsten Kanzow, Antje Voelker, Igor Yashayaev, Processus et interactions de fine échelle océanique (PROTEO), Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Cycles biogéochimiques marins : processus et perturbations (CYBIOM), Institut de Physique du Globe de Paris (IPGP (UMR_7154)), Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Instrumentation, Moyens analytiques, Observatoires en Géophysique et Océanographie (IMAGO), Marine and Freshwater Research Institute, Variabilité de l'Océan et de la Glace de mer (VOG), Développement Instrumental et Techniques Marines (DITM), Laboratoire d'Océanographie Physique et Spatiale (LOPS), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Amundsen Science, Quebec, National Oceanography Centre [Southampton] (NOC), University of Southampton, Center for Marine Environmental Sciences [Bremen] (MARUM), Universität Bremen, Instituto Português de Investigação do Mar e da Atmosfera (IPMA), Centro de Ciências do Mar [Faro] (CCMAR), Universidade do Algarve (UAlg), Institut océanographique Bedford - Bedford Oceanographic Institute [Dartmouth, Canada] (IOB), ANR-13-BS06-0014,GEOVIDE,GEOVIDE, Une étude internationale GEOTRACES le long de la section OVIDE en Atlantique Nord et en Mer du Labrador(2013), and European Project: 637770,H2020,ERC-2014-STG,WAPITI(2015)
Subjects: 13. Climate action, [SDE.MCG]Environmental Sciences/Global Changes, 14. Life underwater
Abstract: The characteristics of the CISE-LOCEAN sea water isotope data set (δ18O, δ2H, later designed as δD) are presented. This data set covers the time period from 1998 to 2021 and currently includes close to 8000 data entries, all with δ18O, three quarters of them also with δD, associated with a time and space stamp and usually a salinity measurement. Until 2010, samples were analysed by isotopic ratio mass spectrometry, and since then mostly by cavity ring-down spectroscopy (CRDS). Instrumental uncertainty on individual data in this dataset is usually with a standard deviation as low as 0.03 / 0.15 ‰ for δ18O and δD. An additional uncertainty is related to uncertain isotopic composition of the in-house standards that are used to convert daily data into the VSMOW scale. Different comparisons suggest that since 2010 the latter have remained within at most 0.03 / 0.20 ‰ for δ18O and δD. Therefore, combining the two suggests a standard deviation of at most 0.05 / 0.25 ‰ for δ18O / δD. Finally, for some samples, we find that there has been evaporation during collection and storage, requiring adjustment of the isotopic data produced by CRDS, based on d-excess. This adds an uncertainty on the adjusted data of roughly 0.05 / 0.10 ‰ on δ18O and δD. This issue of conservation of samples is certainly a strong source of quality loss for parts of the database, and ‘small’ effects may have remained undetected. The internal consistency of the database can be tested for subsets of the dataset, when time series can be obtained (such as in the southern Indian Ocean or North Atlantic subpolar gyre). These comparisons suggest that the overall uncertainty of the spatially (for a cruise) or temporally (over a year) averaged data is on the order of or less than 0.03 / 0.15 ‰ for δ18O / δD. On the other hand, 17 comparisons with duplicate sea water data analysed in other laboratories or with other data sets in deep regions suggest a larger scatter. When averaging the 17 comparisons done for δ18O, we find a difference close to the adjustment applied at LOCEAN to convert salty water data from the activity to the concentration scale. Such a difference is expected, but the scatter found suggests that care is needed when merging datasets from different laboratories. Examples of time series in the surface North Atlantic subpolar gyre illustrate the temporal changes in water isotope composition that can be detected with a carefully validated dataset.
Published: 2022
Full Text: View/download PDF

2. Contrasting impacts of climate change on connectivity and larval recruitment to estuarine nursery areas

Author: Maud Pierre, Henrique N. Cabral, Susanne E. Tanner, Ana Teles-Machado, Patrick Reis-Santos, Mario Lepage, Jérémy Lobry, Hilaire Drouineau, Ecosystèmes aquatiques et changements globaux (UR EABX), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Instituto Português de Investigação do Mar e da Atmosfera (IPMA), University of Adelaide, Marine and Environmental Sciences Centre [Portugal] (MARE), Instituto Universitário de Ciências Psicológicas, Sociais e da Vida (ISPA), Universidade de Lisboa (ULISBOA), and Fundaçao para a Ciencia e a Tec-nologia (FCT) via strategic (UID/MAR/04292/2020)
Subjects: 0106 biological sciences, 010504 meteorology & atmospheric sciences, [SDV]Life Sciences [q-bio], Population structure, Nurseries, Temperature salinity diagrams, Climate change, Aquatic Science, Larval dispersal, 01 natural sciences, 14. Life underwater, Marine-estuarine, 0105 earth and related environmental sciences, geography, Larva, Connectivity, geography.geographical_feature_category, biology, Iberian coast, Soleá, 010604 marine biology & hydrobiology, fungi, North Atlantic, Geology, Estuary, biology.organism_classification, Fishery, Oceanography, opportunist fishes, Estuarine recruitment, 13. Climate action, Biological dispersal, Dicentrarchus
Abstract: International audience; Connectivity between spawning grounds and recruitment areas of marine fish species drives population structure and dynamics, and may be affected by climate-induced changes in oceanographic processes. We analysed the variability in recruitment success of larvae to estuarine nursery areas along the Iberian Atlantic coast of four fish species with distinct spawning grounds and periods (Solea solea, Solea senegalensis, Platichthys flesus and Dicentrarchus labrax). Concomitantly, we explored the variations in connectivity patterns between "cold" and "warm" year archetypes. We used a three-dimensional Lagrangian transport particle-tracking model integrating time series of velocity, temperature and salinity fields archived from the Regional Ocean Modelling System. We simulated individual larval dispersal, over extended spawning periods, from multiple coastal spawning areas to estuarine recruitment areas over 20 years (1989-2008). Overall, high inter-and intra-annual variation were found for all species. Nonetheless, highest overall average recruitment estimates were obtained for S. solea and D. labrax (with 7.3% and 5.7% of the particles released in spawning areas reaching a recruitment area, respectively) compared to S. senegalensis and P. flesus (3.4% and 1.7%, respectively). Recruitment estimates were overall higher at earlier spawning dates but peak values occurred at later spawning events. Regarding spawning origin, particles that recruited to the northern part of the Iberian coast were mainly from southern source areas. For estuarine systems located in southern Portugal, the relative contributions of northern and southern coastal spawning areas were more balanced, or with a preponderance of northern spawning areas (namely for S. senegalensis and D. labrax). Recruitment was higher in "warm" years compared to "cold" years, except for P. flesus for which nil recruitment was registered in the southern Iberian coast during "warm" years. Larvae also travelled farther in "warm" years compared to "cold" years. Ultimately, understanding how oceanographic conditions govern larval recruitment to estuarine nursery areas is pivotal to forecast the potential impacts of climate change on species with segregated life histories, and will underpin long term management and safeguarding of estuarine nursery role.
Published: 2021
Full Text: View/download PDF

3. Food-web dynamics in the Portuguese continental shelf ecosystem between 1986 and 2017: Unravelling drivers of sardine decline

Author: Henrique N. Cabral, T. Veiga-Malta, Alexandra Silva, Susana Garrido, Corina Chaves, M.A. Torres, Maria Manuel Angélico, Pedro Ré, L. Sobrinho-Gonçalves, B. Alcoforado, Dorota Szalaj, Instituto Dom Luiz, Universidade de Lisboa (ULISBOA), Instituto Espagňol de Oceanografia (IEO), DTU Aqua, National Institute of Aquatic Resources, Technical University of Denmark [Lyngby] (DTU), Instituto Português de Investigação do Mar e da Atmosfera (IPMA), Marine and Environmental Sciences Centre [Portugal] (MARE), Instituto Universitário de Ciências Psicológicas, Sociais e da Vida (ISPA), Ecosystèmes aquatiques et changements globaux (UR EABX), and Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
Subjects: 0106 biological sciences, 010504 meteorology & atmospheric sciences, Ecosystem modelling, Sardine fisheries, Aquatic Science, Centro Oceanográfico de Cádiz, Oceanography, 01 natural sciences, Hindcast analysis, Chub mackerel, Ecosystem model, Ecosystem, 14. Life underwater, Medio Marino, 0105 earth and related environmental sciences, Trophic level, fish, Biomass (ecology), geography, geography.geographical_feature_category, biology, Continental shelf, 010604 marine biology & hydrobiology, food, Sardine, Food webs, dynamics, biology.organism_classification, Food web, Fishery, continental shelves, 13. Climate action, [SDE]Environmental Sciences, rights, Ecopath with ecosim, Portuguese shelf
Abstract: The Ecopath food web model that describes the Portuguese continental shelf ecosystem was fitted to available time series to investigate the ecosystem dynamics and decline of the Portuguese sardine stock. Our results showed that the Portuguese continental shelf ecosystem model is a good predictor of biomass and catch time series trends for many species. Moreover, our results suggested that the main factors that drove the ecosystem dynamics were trophic interactions, fishing and environmental forcing (sea surface temperature). The same drivers were important in explaining sardine decline among which the largest contribution was observed when incorporating sea surface temperature forcing on adult sardine, followed by fishing. Moreover, sardine eggs predators (i.e., chub mackerel, horse mackerel and bogue) were emphasised as the most important among trophic interactions in explaining sardine trend between 1986 and 2017. Furthermore, a flow control hypothesis test, showed that model parametrization allows explaining sardine behaviour through wasp-waist control mechanism, characteristic for upwelling systems. This study represents an important step forward in understanding the changes that occurred in the Portuguese continental shelf ecosystem and provides helpful insights to explain Portuguese sardine decline., SI
Published: 2021
Full Text: View/download PDF

4. Use of GNSS Tropospheric Products for Climate Monitoring (Working Group 3)

Author: Janusz Bogusz, Alberto Sá, S. Beirle, S. Nahmani, Zofia Baldysz, E. Pottiaux, Kyriakos Balidakis, D. Landskron, Rosa Pacione, José Antonio Guijarro, Marta Gruszczynska, R. Fernandes, M. Elias, Gunnar Elgered, B. Chimani, Olivier Bock, Tong Ning, C. Hackman, Grzegorz Nykiel, Katarzyna Stepniak, V. Mattioli, Wouter Dorigo, R. Van Malderen, E. Fionda, S. Zengin Kazancı, Robert Heinkelmann, Machiel Bos, Johannes Böhm, Andrzej Araszkiewicz, F. Ahmed, A. Ramos, Carla Barroso, H. Valentim, B. Mircheva, A. Xaver, M. Cadeddu, G. Stankunavicius, Jonathan Jones, Pedro Viterbo, J. P. Martins, Paul Rebischung, R. Nilsson, J. Berckmans, Mariusz Figurski, Harald Schuh, A. Parracho, Sophie Bastin, E. Brockmann, Anna Klos, Guergana Guerova, Jan Dousa, Pascal Willis, Institut National de l'Information Géographique et Forestière [IGN] (IGN), Centro di Geodesia Spaziale [Matera], Agenzia Spaziale Italiana (ASI), Centre of Applied Geomatics [Warsaw], Military University of Technology, German Research Centre for Geosciences - Helmholtz-Centre Potsdam (GFZ), Instituto Português de Investigação do Mar e da Atmosfera (IPMA), SPACE - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Sorbonne Université (SU)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Max-Planck-Institut für Chemie (MPIC), Max-Planck-Gesellschaft, Institut Royal Météorologique de Belgique [Bruxelles] (IRM), Department of Geodesy and Geoinformation [Wien], Vienna University of Technology (TU Wien), University of Beira Interior [Portugal] (UBI), Federal Office of Topography Swisstopo, Argonne National Laboratory [Lemont] (ANL), Institut für Meteorologie und Geophysik [Wien] (IMGW), Universität Wien, Geodetic Observatory Pecny (GOP), Research Institute of Geodesy, Cartography and Topography, Chalmers University of Technology [Göteborg], Fondazione Ugo Bordoni, Department of Meteorology and Geophysics [Sofia], Sofia University 'St. Kliment Ohridski', Agencia Estatal de Meteorología (AEMet), United States Naval Observatory (USNO), Met Office Hadley Centre for Climate Change (MOHC), United Kingdom Met Office [Exeter], Karadeniz Technical University (KTU), Centre of Excellence CETEMPS, Università degli Studi dell'Aquila (UNIVAQ), The Swedish Mapping, Cadastral and Land Registration Authority, Instituto Dom Luiz, Universidade de Lisboa (ULISBOA), Polytechnic Institute of Guarda (IPG), Vilnius University [Vilnius], Advanced Methods for Satellite Positioning Laboratory, University of Warmia and Mazury [Olsztyn], Jonathan Jones, Guergana Guerova, Jan Douša, Galina Dick, Siebren de Haan, Eric Pottiaux, Olivier Bock, Rosa Pacione, and Roeland van Malderen (eds)
Subjects: [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph], 010504 meteorology & atmospheric sciences, Meteorology, 010502 geochemistry & geophysics, 7. Clean energy, 01 natural sciences, Troposphere, 13. Climate action, GNSS applications, [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology, Very-long-baseline interferometry, Environmental science, Anomaly detection, Climate model, 0105 earth and related environmental sciences
Abstract: International audience; There has been growing interest in recent years in the use of homogeneously reprocessed ground-based GNSS, VLBI, and DORIS measurements for climate applications. Existing datasets are reviewed and the sensitivity of tropospheric estimates to the processing details is discussed. The uncertainty in the derived IWV estimates and linear trends is around 1 kg m−2 RMS and ± 0.3 kg m−2 per decade, respectively. Standardized methods for ZTD outlier detection and IWV conversion are proposed. The homogeneity of final time series is limited however by changes in the stations equipment and environment. Various homogenization algorithms have been evaluated based on a synthetic benchmark dataset. The uncertainty of trends estimated from the homogenized times series is estimated to ±0.5 kg m−2 per decade. Reprocessed GNSS IWV data are analysed along with satellites data, reanalyses and global and regional climate model simulations. A selection of global and regional reprocessed GNSS datasets and ERA-interim reanalysis are made available through the GOP-TropDB tropospheric database and online service. A new tropo SINEX format, providing new features and simplifications, was developed and it is going to be adopted by all the IAG services.
Published: 2020
Full Text: View/download PDF

5. Surface and deep water variability in the Western Mediterranean (ODP Site 975) during insolation cycle 74: High-resolution calcareous plankton and molecular biomarker signals

Author: F. Bassinot, Teresa Rodrigues, Maria Marino, Emilia Salgueiro, Patrizia Maiorano, Ornella Quivelli, Fatima F Abrantes, Angela Girone, Università degli studi di Bari Aldo Moro (UNIBA), Dipartimento di Geologia e Geofisica, Universita di Bari, Universidade do Porto, Dipartimento Geol & Geofis, University of Bari Aldo Moro (UNIBA), Instituto Português de Investigação do Mar e da Atmosfera (IPMA), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Paléocéanographie (PALEOCEAN), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Università degli studi di Bari Aldo Moro = University of Bari Aldo Moro (UNIBA), Universidade do Porto = University of Porto, Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)
Subjects: Marine isotope stage, Planktonic foraminifera, 010506 paleontology, 010502 geochemistry & geophysics, Oceanography, 01 natural sciences, Terrigenous biomarkers, Foraminifera, Coccolithophores, C-37-alkenones, 14. Life underwater, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, MIS 19, Organic-rich layer, Ecology, Evolution, Behavior and Systematics, Sea level, ComputingMilieux_MISCELLANEOUS, 0105 earth and related environmental sciences, Earth-Surface Processes, Total organic carbon, [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, biology, Paleontology, Globigerina bulloides, Plankton, biology.organism_classification, Sea surface temperature, 13. Climate action, Surface water, Geology
Abstract: We reconstructed changes in productivity and surface/subsurface and deep-water dynamics in the Western Mediterranean through a multi-proxy study of Ocean Drilling Program Site 975 between late Marine Isotope Stage (MIS) 20 and early interglacial MIS 19. Our high-resolution study (down to similar to 200-year resolution) combines calcareous plankton assemblages (coccolithophores and foraminifera), biomarkers (C-37-alkenones, n-alkanes, n-alcohols) and elemental proxies (total organic carbon, total nitrogen, calcium carbonate). Surface water conditions are derived (i) from high-resolution delta O-18 and delta C-13 records obtained from the planktonic foraminifer Globigerina bulloides, and (ii) from summer and winter, foraminifera-based sea surface temperature reconstructions (SSTJAS-foram, SSTJFM-foram) achieved through transfer function. The integration of the whole dataset makes it possible to identify in the Balearic Sea, and to accurately characterize for the first time, an Organic Rich Layer (ORL) during latest MIS 20-early MIS 19, close to i-cycle 74. Its presence is marked firstly by higher values of total nitrogen (TN) and an increase of total C-37-alkenone and total organic carbon (TOC) preserved in the sediments. The multi-proxy approach reveals that the deglacial phase played a prominent role for ORL formation that was characterized by centennial scale phases. The alcohol preservation index (API) suggests that the shoaling of the circulation, which boosted marine productivity, started in the deglaciation and, in combination with freshening by Atlantic water inflow/riverine input and surface water buoyancy during sea level rising, culminated during the ORL event. At this time calcareous plankton proliferated on subsurface-surface waters, benefiting from ameliorating conditions, which promoted maximum marine productivity and higher organic matter preservation on the seafloor. Geoscience PhD scholarship, University degli Studi di Bari Fundacao para a Ciencia e a TecnologiaPortuguese Foundation for Science and TechnologyEuropean Commission [SFRH/BPD/111433/2015] dell'Universita degli Studi di Bari, Laboratorio per lo Sviluppo Integrato delle Scienze e delle Tecnologie dei Materiali Avanzati e per dispositivi innovativi (SISTEMA) [PONa3_00369] info:eu-repo/semantics/publishedVersion
Published: 2020
Full Text: View/download PDF

6. Conflicts in the coastal zone : Human impacts on commercially important fish species utilizing coastal habitat

Author: Olivier Le Pape, Elliot John Brown, Francesco Colloca, Rita P. Vasconcelos, Karen E. van de Wolfshaar, Giacomo Millisenda, Josianne Støttrup, Ulf Bergström, Håkan Wennhage, Repositório da Universidade de Lisboa, DTU Aqua, National Institute of Aquatic Resources, Technical University of Denmark [Lyngby] (DTU), Marine and Environmental Sciences Centre [Portugal] (MARE), Instituto Universitário de Ciências Psicológicas, Sociais e da Vida (ISPA), Instituto Português de Investigação do Mar e da Atmosfera (IPMA), Department of Aquatic Resources, Swedish University of Agricultural Sciences (SLU), Wageningen Marine Research [The Netherlands], Institute for Coastal Marine Environment, Consiglio Nazionale delle Ricerche (CNR), Écologie et santé des écosystèmes (ESE), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, Mapping fish habitats, and Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)
Subjects: 0106 biological sciences, [SDV]Life Sciences [q-bio], habitat loss, Fishing, coastal, Aquatic Science, Oceanography, 010603 evolutionary biology, 01 natural sciences, Invasive species, Onderzoeksformatie, ecosystem-based management, Anthropogenic pressure, Ecosystem, SDG 14 - Life Below Water, 14. Life underwater, Ecology, Evolution, Behavior and Systematics, [SDV.EE]Life Sciences [q-bio]/Ecology, environment, Ecology, 010604 marine biology & hydrobiology, fungi, Cumulative effects, habitat degradation, human activity, 15. Life on land, Fishery, Geography, Habitat, 13. Climate action, fisheries, [SDV.SA.STP]Life Sciences [q-bio]/Agricultural sciences/Sciences and technics of fishery, Water quality, Fisheries management, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Eutrophication
Abstract: Fundacao para a Ciencia e a Tecnologia (FCT) [IF/00058/2013, PTDC/AAG-GLO/5849/2014, UID/MAR/04292/]; European Commission via National Programme for Biological Sampling (PNAB) integrated in the Data Collection Framework; Wageningen Marine Research This work was developed within the context of the ICES Working Group on the Value of Coastal Habitats for Exploited Species (WGVHES). We thank both ICES and all participants of the Working Group during 2014-2017. Contributors to this research were independently funded and supported: EJB was funded by the Danish Recreational Fishers Fund - Marine Fiskepleje and the Otto Monsted Fund; RPV was financed through Fundacao para a Ciencia e a Tecnologia (FCT) via Investigador FCT Programme 2013 (IF/00058/2013), project PTDC/AAG-GLO/5849/2014 and project UID/MAR/04292/, and through European Commission via National Programme for Biological Sampling (PNAB) integrated in the Data Collection Framework, and KvdW was supported by Wageningen Marine Research.; International audience; Coastal ecosystems are ecologically, culturally, and economically important, and hence are under pressure from diverse human activities. We reviewed the literature for existing evidence of effects of human-induced habitat changes on exploited fish utilizing coastal habitats. We focused on fish species of the Northeast Atlantic for which fisheries advice is provided by International Council for the Exploration of the Sea (ICES) and which utilize coastal habitats for at least one life-history stage (LHS). We found that 92% of these species are impacted by human activity in at least one LHS while utilizing coastal habitat and 38% in multiple stages. Anthropogenic pressures most commonly shown to impact these fish species were toxicants and pollutants (75% of species). Eutrophication and anoxia, invasive species, and physical coastal development affected about half of the species (58, 54, and 42% of species, respectively), while indirect fishing impacts affected a minority (17% of species). Moreover, 71% of the ICES advice species that utilize coastal habitats face impacts from more than one pressure, implying cumulative effects. Given that three-fourths of the commercial landings come from fish species utilizing coastal habitats, there is an obvious need for a better understanding of the impacts that human activities cause in these habitats for the development of ecosystem-based fisheries management.
Published: 2018
Full Text: View/download PDF

7. Mariana serpentinite mud volcanism exhumes subducted seamount materials: implications for the origin of life

Author: R.T. Kevorkian, Barbara A. Bekins, Jeffrey G. Ryan, Shino Suzuki, Kevin T. M. Johnson, Roy E. Price, Walter Kurz, P. Eickenbusch, Diva J. Amon, Rui Zhang, Elmar Albers, Shirley A. Pomponi, John W. Shervais, S.S. Mantovanelli, C. Geoffrey Wheat, Jianghong Deng, Deborah Glickson, R.M. Johnston, Baptiste Debret, Emanuelle Frery, Jung-Woo Park, Katsuyoshi Michibayashi, B. Walter, Patricia Fryer, Olivier Sissmann, K.K. Mullane, Christopher Kelley, Yanhui Dong, Vitor Magalhães, Yuji Ichiyama, Ken Takai, Trevor Williams, C. D. Menzies, Craig L. Moyer, Walter Menapace, School of Ocean and Earth Science and Technology (SOEST), University of Hawai‘i [Mānoa] (UHM), University of Alaska [Fairbanks] (UAF), International Ocean Discovery Program, School of Geosciences, University of South Florida, Florida, Tampa, USA, University of South Florida [Tampa] (USF), NAWI Graz Geocentre, Karl-Franzens-Universität [Graz, Autriche], Utah State University (USU), University of Bremen, United States Geological Survey (USGS), University of Cambridge [UK] (CAM), School of Earth and Space Sciences [Hefei], University of Science and Technology of China [Hefei] (USTC), Second Institute of Oceanography, State Oceanic Administration (SOA), Department of Environmental Systems Science [ETH Zürich] (D-USYS), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), CSIRO Division of Petroleum Resources, Kensington, Australia, Commonwealth Scientific and Industrial Research Organisation [Canberra] (CSIRO), Department of Earth Sciences [Chiba], Chiba University, The University of Tennessee [Knoxville], Instituto Português de Investigação do Mar e da Atmosfera (IPMA), Oceanographic Institute, Univesidade de Sao Paulo, Center for Marine Environmental Sciences [Bremen] (MARUM), Universität Bremen, National Oceanography Centre [Southampton] (NOC), University of Southampton, Graduate School of Environmental Studies [Nagoya], Nagoya University, Western Washington University (WWU), Scripps Institution of Oceanography (SIO), University of California [San Diego] (UC San Diego), University of California-University of California, School of Earth and Environmental Sciences [Seoul] (SEES), Seoul National University [Seoul] (SNU), State University of New York (SUNY), IFP Energies nouvelles (IFPEN), Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), GeoRessources, Centre National de la Recherche Scientifique (CNRS)-Université de Lorraine (UL)-Centre de recherches sur la géologie des matières premières minérales et énergétiques (CREGU)-Institut national des sciences de l'Univers (INSU - CNRS), State Key Laboratory of Marine Environmental Science (Xiamen University), The Natural History Museum [London] (NHM), National Academy of Sciences Washington, Harbor Branch Oceanographic Institute [Fort Pierce], and Florida Atlantic University [Boca Raton]
Subjects: geology, Mariana trench, Serpentinite mud volcanism, Subducted cretaceous seamounts, Exhumed microbes, Evolution of life, 010504 meteorology & atmospheric sciences, [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph], General Mathematics, Seamount, Origin of Life, Geochemistry, astrobiology, General Physics and Astronomy, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, Volcanism, Volcanic Eruptions, 010502 geochemistry & geophysics, 01 natural sciences, volcanology, Abiogenesis, [SDU.STU.VO]Sciences of the Universe [physics]/Earth Sciences/Volcanology, evolution of life, Convergent boundary, Seawater, 14. Life underwater, 0105 earth and related environmental sciences, geochemistry, geography, Minerals, geography.geographical_feature_category, Subduction, exhumed microbes, General Engineering, Articles, serpentinite mud volcanism, subducted cretaceous seamounts, 13. Climate action, plate tectonics, Mariana Trench, Ridge (meteorology), Geology, Research Article
Abstract: The subduction of seamounts and ridge features at convergent plate boundaries plays an important role in the deformation of the overriding plate and influences geochemical cycling and associated biological processes. Active serpentinization of forearc mantle and serpentinite mud volcanism on the Mariana forearc (between the trench and active volcanic arc) provides windows on subduction processes. Here, we present (1) the first observation of an extensive exposure of an undeformed Cretaceous seamount currently being subducted at the Mariana Trench inner slope; (2) vertical deformation of the forearc region related to subduction of Pacific Plate seamounts and thickened crust; (3) recovered Ocean Drilling Program and International Ocean Discovery Program cores of serpentinite mudflows that confirm exhumation of various Pacific Plate lithologies, including subducted reef limestone; (4) petrologic, geochemical and paleontological data from the cores that show that Pacific Plate seamount exhumation covers greater spatial and temporal extents; (5) the inference that microbial communities associated with serpentinite mud volcanism may also be exhumed from the subducted plate seafloor and/or seamounts; and (6) the implications for effects of these processes with regard to evolution of life. This article is part of a discussion meeting issue ‘Serpentine in the Earth system’.
Published: 2020
Full Text: View/download PDF

8. A review of earth surface thermal radiation directionality observing and modeling: Historical development, current status and perspectives

Author: Biao Cao, Jean-Philippe Gastellu-Etchegorry, Zunjian Bian, Wenfeng Zhan, Jean-Pierre Lagouarde, Yunyue Yu, Tian Hu, Hua Li, Jie Cheng, Qinhuo Liu, J.-L. Roujean, Frédéric Jacob, Isabel F. Trigo, Qing Xiao, Yongming Du, Institute of Remote Sensing and Digital Earth (RADI), Chinese Academy of Sciences [Beijing] (CAS), University of Chinese Academy of Sciences [Beijing] (UCAS), Centre d'études spatiales de la biosphère (CESBIO), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Instituto Português de Investigação do Mar e da Atmosfera (IPMA), Nanjing University (NJU), NOAA Center for Satellite Applications and Research (STAR), NOAA National Environmental Satellite, Data, and Information Service (NESDIS), National Oceanic and Atmospheric Administration (NOAA)-National Oceanic and Atmospheric Administration (NOAA), Beijing Normal University (BNU), Laboratoire d'étude des Interactions Sol - Agrosystème - Hydrosystème (UMR LISAH), Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Interactions Sol Plante Atmosphère (UMR ISPA), Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro), Griffith University [Brisbane], Groupe d'étude de l'atmosphère météorologique (CNRM-GAME), Institut national des sciences de l'Univers (INSU - CNRS)-Météo France-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD)-Institut de Recherche pour le Développement (IRD [ Madagascar])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro), UMR1391, Institut National de la Recherche Agronomique (INRA), Equipe Image - Laboratoire GREYC - UMR6072, Groupe de Recherche en Informatique, Image, Automatique et Instrumentation de Caen (GREYC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS), College of Engineering, Jiangxi Agricultural University (JXAU), China Agricultural University (CAU), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut de Recherche pour le Développement (IRD [ Madagascar])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)
Subjects: 010504 meteorology & atmospheric sciences, 0208 environmental biotechnology, directional radiometric temperature, Soil Science, Magnitude (mathematics), 02 engineering and technology, Radiation, directional canopy emissivity, 01 natural sciences, Temperature measurement, thermal anisotropy, Radiative transfer, thermal radiation directionality, Computers in Earth Sciences, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, ComputingMilieux_MISCELLANEOUS, 0105 earth and related environmental sciences, Remote sensing, directional thermal emission, Geology, Snow, directional brightness temperature, angular anisotropy, 020801 environmental engineering, directional anisotropy, 13. Climate action, Thermal radiation, [SDU]Sciences of the Universe [physics], Parametric model, Radiance, thermal emission directionality, Environmental science, land surface temperature anisotropy
Abstract: International audience; The Earth surface thermal infrared (TIR) radiation shows conspicuously an anisotropic behavior just like the bidirectional reflectance of visible and near infrared spectral domains. The importance of thermal radiation directionality (TRD) is being more and more widely recognized in the applications because of the magnitude of the effects generated. The effects of TRD were originally evidenced through experiments in 1962, showing that two sensors simultaneously measuring temperature of the same scene may get significantly different values when the viewing geometry is different. Such effect limits inter-comparison of measurement datasets and land surface temperature (LST) products acquired at different view angles, while raising the question of measurement reliability when used to characterize land surface processes. These early experiments fostered the development of modeling approaches to quantify TRD with the aim of developing a correction for Earth surface TIR radiation. Initiatives for pushing the analysis of TIR data through modeling have been lasted since 1970s. They were initially aimed at mimicking the observed TIR radiance with consideration of canopy structure, component emissivities and temperatures, and Earth surface energy exchange processes. Presently, observing the Earth surface TRD effect is still a challenging task because the TIR status changes rapidly. Firstly, a brief theoretical background and the basic radiative transfer equation are presented. Then, this paper reviews the historical development and current status of observing TRD in the laboratory, in-situ, from airborne and space-borne platforms. Accordingly, the TRD model development, including radiative transfer models, geometric models, hybrid models, 3D models, and parametric models are reviewed for surfaces of water, ice and sea, snow, barren lands, vegetation and urban landscapes, respectively. Next, we introduce three potential applications, including normalizing the LST products, estimating the hemispheric upward longwave radiation using multi-angular TIR observations and separating surface component temperatures. Finally, we give hints and directions for future research work. The last section summarizes the study and stresses three main conclusions.
Published: 2019
Full Text: View/download PDF

9. Environmental risks associated with contaminants of legacy and emerging concern at European aquaculture areas

Author: Triantafyllos A. Albanis, Vasiliki Boti, Kevin V. Thomas, Yann Aminot, Marianne Köck-Schulmeyer, António Marques, Elena Botteon, Federico Ferrari, Lia Godinho, Stephen J. Sayfritz, James W. Readman, Marinella Farré, M. Silvia Díaz-Cruz, Damià Barceló, Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Norwegian Institute for Water Research (NIVA), Instituto Português de Investigação do Mar e da Atmosfera (IPMA), Università cattolica del Sacro Cuore [Roma] (Unicatt), University of Ioannina, Institute of Environmental Assessment and Water Research (IDAEA), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Universidade do Porto, Plymouth Marine Laboratory (PML), Plymouth Marine Laboratory, European Commission, Diaz-Cruz, M. Silvia, Barceló, Damià, Diaz-Cruz, M. Silvia [0000-0003-3331-4076], and Barceló, Damià [0000-0002-8873-0491]
Subjects: Geologic Sediments, 010504 meteorology & atmospheric sciences, Health, Toxicology and Mutagenesis, Sewage, Aquaculture, 010501 environmental sciences, Toxicology, 01 natural sciences, Mediterranean Sea, Marine ecosystem, Ecosystem, 14. Life underwater, Polycyclic Aromatic Hydrocarbons, Atlantic Ocean, 0105 earth and related environmental sciences, Fluorocarbons, geography, geography.geographical_feature_category, business.industry, Sediment, Estuary, General Medicine, Contamination, Pollution, 6. Clean water, Aquaculture contaminants of legacy and emerging concern, Europe, Acrylates, Alkanesulfonic Acids, 13. Climate action, Personal care products, Environmental chemistry, [SDE]Environmental Sciences, Environmental science, Contaminants of legacy and emerging concern, Per- and polyfluoroalkyl substances, Ecotoxicity, business, Water Pollutants, Chemical, Environmental Monitoring
Abstract: The contamination of marine ecosystems by contaminants of emerging concern such as personal care products or per- and polyfluoroalkyl substances is of increasing concern. This work assessed the concentrations of selected contaminants of emerging concern in water and sediment of European aquaculture areas, to evaluate their co-variation with legacy contaminants (polycyclic aromatic hydrocarbons) and faecal biomarkers, and estimate the risks associated with their occurrence. The 9 study sites were selected in 7 European countries to be representative of the aquaculture activities of their region: 4 sites in the Atlantic Ocean and 5 in the Mediterranean Sea. Musks, UV filters, preservatives, per- and polyfluoroalkyl substances and polycyclic aromatic hydrocarbons were detected in at least one of the sites with regional differences. While personal care products appear to be the main component of the water contamination, polycyclic aromatic hydrocarbons were mostly found in sediments. As expected, generally higher levels of personal care products were found in sewage impacted sites, urbanised coasts and estuaries. The risk assessment for water and sediment revealed a potential risk for the local aquatic environment from contaminants of both legacy and emerging concern, with a significant contribution of the UV filter octocrylene. Despite marginal contributions of per- and polyfluoroalkyl substances to the total concentrations, PFOS (perfluorooctane sulfonate) aqueous concentrations combined to its low ecotoxicity thresholds produced significant hazard quotients indicating a potential risk to the ecosystems., This study was financially supported by the SEA-on-a-CHIP project, funded from European Union Seventh Framework Programme (FP7-OCEAN-2013) under grant agreement No. 614168. Antonio Marques is supported through the FCT Investigator program (IF).
Published: 2019
Full Text: View/download PDF

10. The Li isotope composition of marine biogenic carbonates: Patterns and Mechanisms

Author: Clemens V. Ullmann, Justin B. Ries, Frank A. Corsetti, Mathieu Dellinger, Anthony R. Kampf, Robert A. Eagle, Jess F. Adkins, A. Joshua West, Guillaume Paris, Philip A.E. Pogge von Strandmann, Pedro Freitas, Marie-Laure Bagard, Alberto Pérez-Huerta, Department of Earth Sciences [USC Los Angeles], University of Southern California (USC), Durham University, Centre de Recherches Pétrographiques et Géochimiques (CRPG), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Division of Geological and Planetary Sciences [Pasadena], California Institute of Technology (CALTECH), London Geochemistry and Isotope Centre, University of London [London], Department of Earth and Planetary Sciences [UCL/Birkbeck], Birkbeck College [University of London], University of Exeter, University of California [Los Angeles] (UCLA), University of California, Department of Atmospheric and Oceanic Sciences [Los Angeles] (AOS), University of California-University of California, Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Instituto Português de Investigação do Mar e da Atmosfera (IPMA), Institut des Sciences de la Terre d'Orléans - UMR7327 (ISTO), Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Bureau de Recherches Géologiques et Minières (BRGM) (BRGM), Biogéosystèmes Continentaux - UMR7327, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Bureau de Recherches Géologiques et Minières (BRGM) (BRGM)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Northeastern University [Boston], University of Alabama [Tuscaloosa] (UA), Natural History Museum of Los Angeles County, European Project: 682760,CONTROLPASTCO2, University of California (UC), University of California (UC)-University of California (UC), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Bureau de Recherches Géologiques et Minières (BRGM) (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Bureau de Recherches Géologiques et Minières (BRGM) (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC)
Subjects: Biomineralization, Biogenic carbonates, lithium isotopes, 010504 meteorology & atmospheric sciences, Brachiopods, Fractionation, engineering.material, 010502 geochemistry & geophysics, 01 natural sciences, Foraminifera, chemistry.chemical_compound, Geochemistry and Petrology, [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry, Li/Mg ratio, 14. Life underwater, 0105 earth and related environmental sciences, Calcite, [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, Mollusks, biology, Isotope, Aragonite, ACL, mollusks, biology.organism_classification, biomineralization, Lithium isotopes, biogenic carbonates, Mytilus, es, chemistry, 13. Climate action, Environmental chemistry, engineering, Seawater, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, brachiopods
Abstract: Little is known about the fractionation of Li isotopes during formation of biogenic carbonates, which form the most promising geological archives of past seawater composition. Here we investigated the Li isotope composition (delta Li-7) and Li/Ca ratios of organisms that are abundant in the Phanerozoic record: mollusks (mostly bivalves), echinoderms, and brachiopods. The measured samples include (i) modern calcite and aragonite shells from various species and natural environments (13 mollusk samples, 5 brachiopods and 3 echinoderms), and (ii) shells from mollusks grown under controlled conditions at various temperatures. When possible, the mollusk shell ultrastructure was micro-sampled in order to assess intra-shell heterogeneity. In this paper, we systematically characterize the influence of mineralogy, temperature, and biological processes on the delta Li-7 and Li/Ca of these shells and compare with published data for other taxa (foraminifera and corals). Aragonitic mollusks have the lowest delta Li-7, ranging from +16 to +22%, echinoderms have constant delta Li-7 of about +24%, brachiopods have delta Li-7 of +25 to +28%, and finally calcitic mollusks have the largest range and highest delta Li-7 values, ranging from +25% to +40%. Measured brachiopods have similar delta Li-7 compared to inorganic calcite precipitated from seawater (delta Li-7 of +27 to +29%), indicating minimum influence of vital effects, as also observed for other isotope systems and making them a potentially viable proxy of past seawater composition. Calcitic mollusks, on the contrary, are not a good archive for seawater paleo-delta Li-7 because many samples have significantly higher delta Li-7 values than inorganic calcite and display large interspecies variability, which suggests large vital effects. In addition, we observe very large intra-shell variability, in particular for mixed calcite-aragonite shells (over 20% variability), but also in mono-mineralic shells (up to 12% variability). Aragonitic bivalves have less variable delta Li-7 (7% variability) compared to calcitic mollusks, but with significantly lower delta Li-7 compared to inorganic aragonite, indicating the existence of vital effects. Bivalves grown at various temperatures show that temperature has only a minor influence on fractionation of Li isotopes during shell precipitation. Interestingly, we observe a strong correlation (R-2 = 0.83) between the Li/Mg ratio in bivalve Mytilus edulis and temperature, with potential implications for paleo-temperature reconstructions. Finally, we observe a negative correlation between the delta Li-7 and both the Li/Ca and Mg/Ca ratio of calcite mollusks, which we relate to biomineralization processes. To explain this correlation, we propose preferential removal of 6 Li from the calcification site of calcite mollusks by physiological processes corresponding to the regulation of the amount of Mg in the calcifying medium. We calculate that up to 80% of the initial Li within the calcification site is removed by this process, leading to high delta Li-7 and low Li/Ca in some calcite mollusk specimens. Collectively, these results suggest that Mg (and thus [Li]) is strongly biologically controlled within the calcifying medium of calcite mollusks. Overall, the results of this study show that brachiopods are likely to be suitable targets for future work on the determination of paleo-seawater Li isotope composition-an emerging proxy for past weathering and hydrothermal processes.
Published: 2018
Full Text: View/download PDF

11. Particle fluxes in the NW Iberian coastal upwelling system: Hydrodynamical and biological control

Author: Diana Zúñiga, Nicolás Villacieros-Robineau, Emilia Salgueiro, Fatima F Abrantes, F. Alonso-Pérez, Carmen G. Castro, Gabriel Rosón, Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Instituto Português de Investigação do Mar e da Atmosfera (IPMA), Marine Geology Department, Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS Paris), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris)
Subjects: 010504 meteorology & atmospheric sciences, [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph], Aquatic Science, Biogenic silica, Oceanography, 01 natural sciences, Resuspension, Particulate organic carbon, Settling, Photic zone, 14. Life underwater, NE Atlantic, ComputingMilieux_MISCELLANEOUS, 0105 earth and related environmental sciences, Total organic carbon, Particle fluxes, 010505 oceanography, Geology, Sedimentation, Deposition (aerosol physics), 13. Climate action, Sediment trap, Upwelling, Filament, Coastal upwelling
Abstract: 9 páginas, 4 tablas, 9 figuras, To better understand sources and transport of particulate material in the NW Iberian coastal upwelling system, a mooring line dotted with an automated PPS 4/3 sediment trap was deployed off Cape Silleiro at the base of the photic zone. The samples were collected from November 2008 through June 2012 over sampling periods of 4-12 days. Our study represents the first automated sediment trap database for the NW Iberian margin. The magnitude and composition of the settling material showed strong seasonal variability with the highest fluxes during the poleward and winter mixing periods (averages of 12.9±9.6 g m−2 d−1 and 5.6±5.6 g m−2 d−1 respectively), and comparatively lower fluxes (3.6±4.1 g m−2 d−1) for the upwelling season. Intensive deposition events registered during poleward and winter mixing periods were dominated by the lithogenic fraction (80±3%). They were associated to high energy wave-driven resuspension processes, due to the occurrence of south-westerly storms, and intense riverine inputs of terrestrial material from Minho and Douro rivers. On the other hand, during the spring - summer upwelling season, the share of biogenic compounds (organic matter, calcium carbonate (CaCO3), biogenic silica (bSiO2)) to downward fluxes was higher, reflecting an increase in pelagic sedimentation due to the seasonal intensification of primary production and negligible river inputs and wave-driven resuspended material. Otherwise, the large variations of biogenic settling particles were mainly modulated by upwelling intensity, which by means of upwelling filaments ultimately controlled the offshore transport of the organic carbon fixed by primary producers towards the adjacent ocean. Based on the average downward flux of organic carbon (212 mg C m−2 d−1) and considering an average primary production of 1013 mg C m−2 d−1 from literature, we estimated that about 21% of the fixed carbon is vertically exported during the upwelling season, This study was sponsored by CAIBEX (CTM2007-66408-C02-01/MAR) and REIMAGE (CTM2011–30155–C03–03) projects funded by the Spanish Government, EXCAPA project (10MDS402013PR) supported by Xunta de Galicia, the EU FEDER funded projects RAIA (INTERREG 2009/2011; 0313/RAIA/E) and RAIA.co (INTERREG 2011/2013; 052/RAIA.co/1E) and the CALIBERIA project (PTDC/MAR/102045/2008) financed by Fundaçao para a Ciència e a Tecnologia (FCT-Portugal). D.Z. was funded by a postdoctoral fellowship (Plan I2C) from Xunta de Galicia (Spain)
Published: 2016
Full Text: View/download PDF

12. Evaluating changes in marine communities that provide ecosystem services through comparative assessments of community indicators

Author: Johanna J. Heymans, Jennifer L. Boldt, Scott I. Large, Didier Jouffre, Ibrahima Diallo, Gro I. van der Meeren, Morgane Travers-Trolet, F Borges Maria, Henn Ojaveer, Jorge Tam, Kristin N. Marshall, Marta Coll, Alida Bundy, Kristin M. Kleisner, Chiara Piroddi, Stephani G. Zador, Yunne-Jai Shin, Maria Angeles Torres, Christopher P. Lynam, Lynne J. Shannon, Maria J. Juan Jordá, Didier Gascuel, K. Tsagarakis, Clive Fox, Sea Around Us Project, University of British Columbia (UBC), Northeast Fisheries Science Center (NEFSC), NOAA National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)-National Oceanic and Atmospheric Administration (NOAA), UMR 212 EME 'écosystèmes marins exploités' (EME), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Montpellier (UM), Lowestoft Laboratory, Centre for Environment, Fisheries and Aquaculture Science (CEFAS), Population Ecology Division, Bedford Institute of Oceanography, Marine Research Institute and Department of Biological Sciences, University of Cape Town, Pacific Biological Station (PBS), Fisheries and Oceans Canada (DFO), Instituto Português de Investigação do Mar e da Atmosfera (IPMA), Centre National des Sciences Halieutiques de Boussoura (CNSHB), Scottish Marine Institute, Écologie et santé des écosystèmes (ESE), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, Scottish Association for Marine Science, Marine Research Division, AZTI, Earth to Ocean Research Group (SFU), Simon Fraser University (SFU.ca), Ecologie des systèmes marins côtiers (Ecosym), Centre National de la Recherche Scientifique (CNRS)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université Montpellier 2 - Sciences et Techniques (UM2)-Université Montpellier 1 (UM1), School of Aquatic and Fishery Sciences, University of Washington, Estonian Marine Institute, University of Tartu, Water Resources Unit [Ispra], JRC Institute for Environment and Sustainability (IES), European Commission - Joint Research Centre [Ispra] (JRC)-European Commission - Joint Research Centre [Ispra] (JRC), Instituto del Mar del Peru (IMARPE), Centro Oceanográfico de Cádiz, Instituto Español de Oceanografía, Department of Aquatic Resources, Institute of Coastal Research, Swedish University of Agricultural Sciences (SLU), Fisheries Laboratory, Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Institute of Marine Biological Resources and Inland Waters, Hellenic Center for Marine Research (HCMR), Hjort Centre for Marine Ecosystem Dynamics, Alaska Fisheries Science Center (AFSC), Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS), Institute of Coastal Research, Department of Aquatic Resources, and Swedish University of Agricultural Sciences (SLU)-Swedish University of Agricultural Sciences (SLU)
Subjects: Community metric, [SDV]Life Sciences [q-bio], fishing impacts, Geography, Planning and Development, Population, Context (language use), Management, Monitoring, Policy and Law, Ecological indicator, Ecosystem services, Comparative approach, IndiSeas, Abundance (ecology), Marine ecosystem, Ecosystem, 14. Life underwater, education, Nature and Landscape Conservation, Global and Planetary Change, Biomass (ecology), education.field_of_study, Ecology, business.industry, Environmental resource management, ecological indicator, Agricultural and Biological Sciences (miscellaneous), Fishing impacts, Geography, 13. Climate action, comparative approach, business, community metric
Abstract: We would like to thank the IndiSeas Working Group, endorsed by IOC-UNESCO (www.ioc-unesco.org) and the European Network of Excellence Euroceans (www.eur-oceans.eu). KMK was supported by Conservation International and the Sea Around Us project, a collaboration between The University of British Columbia and The Pew Charitable Trusts. MC was partially supported by the EC Marie Curie CIG grant to BIOWEB and the Spanish Research Program Ramon y Cajal. LJS was supported through the South African Research Chair Initiative, funded through the South African Department of Science and Technology (DST) and administered by the South African National Research Foundation (NRF). YJS and MIT were supported by the French project EMIBIOS (FRB, contract no. APP-SCEN-2010-11). US and YS were also funded by the European collaborative project MEECE - Marine Ecosystem Evolution in a Changing Environment - (FP7, Contract no. 212085). CPL was supported by Defra project MF1228 (From Physics to Fisheries) and DEVOTES (DEVelopment of innovative Tools for understanding marine biodiversity and assessing good Environmental Status) funded by EU FP7 (grant Agreement no. 308392), www.devotes-project.eu. GIvdM was partially supported by the Norwegian Nature Index programme and the Institute of Marine Research, Norway. HO was funded was funded by the Estonian Ministry of Education and Research (grant SF0180005s10). MAT was funded by a predoctoral FPI fellowship from the Spanish Institute of Oceanography (IEO). MJJJ was supported by the EC Marie Curie IOF Grant, PIOF-GA-2013-628116. We acknowledge all those who conducted surveys to collect the data used in this study.; Fisheries provide critical provisioning services, especially given increasing human population. Understanding where marine communities are declining provides an indication of ecosystems of concern and highlights potential conflicts between seafood provisioning from wild fisheries and other ecosystem services. Here we use the nonparametric statistic, Kendall's tau, to assess trends in biomass of exploited marine species across a range of ecosystems. The proportion of 'Non-Declining Exploited Species' (NDES) is compared among ecosystems and to three community-level indicators that provide a gauge of the ability of a marine ecosystem to function both in provisioning and as a regulating service: survey-based mean trophic level, proportion of predatory fish, and mean life span. In some ecosystems, NDES corresponds to states and temporal trajectories of the community indicators, indicating deteriorating conditions in both the exploited community and in the overall community. However differences illustrate the necessity of using multiple ecological indicators to reflect the state of the ecosystem. For each ecosystem, we discuss patterns in NDES with respect to the community-level indicators and present results in the context of ecosystem-specific drivers. We conclude that using NDES requires context-specific supporting information in order to provide guidance within a management framework. (C) 2015 Elsevier B.V. All rights reserved.
Published: 2015
Full Text: View/download PDF

13. Dinoflagellate cyst population evolution throughout past interglacials: Key features along the Iberian margin and insights from the new IODP Site U1385 (Exp 339)

Author: Frédérique Eynaud, Dulce Oliveira, María-Fernanda Sánchez-Goñi, Aurélie Penaud, Stéphanie Desprat, Laurent Londeix, Jean-Louis Turon, UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Domaines Océaniques (LDO), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Observatoire des Sciences de l'Univers-Institut d'écologie et environnement-Centre National de la Recherche Scientifique (CNRS), Instituto Português de Investigação do Mar e da Atmosfera (IPMA), Centro Interdisciplinar de Investigaçao Marinha e Ambiental (CIMAR), and Universidade do Algarve (UAlg)
Subjects: 010506 paleontology, 010504 meteorology & atmospheric sciences, Population, Climate change, Context (language use), Oceanography, 01 natural sciences, Paleontology, Interglacials, Biodiversity and climate shifts, Dinocysts, Dinocyst, 14. Life underwater, education, 0105 earth and related environmental sciences, Global and Planetary Change, education.field_of_study, biology, Dinoflagellate, Biota, 15. Life on land, biology.organism_classification, Southern Iberian margin, 13. Climate action, [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology, Interglacial, Hydrography, [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology, Geology
Abstract: IODP 339 Site U1385 ("Shackleton site", e.g. Hodell et al., 2013a), from the SW Iberian margin, offers the opportunity to study marine microfossil population dynamics by comparing several past interglacials and to test natural shifts of species that occurred across these warm periods, in a subtropical context. Here, more specifically, we present results obtained for the dinoflagellate cyst (dinocyst) population integrated at a regional scale thanks to the addition of data from proximal sites from southern Iberian margin. When possible, observations made using the dinocyst bio-indicator are compared to additional proxies from the same records in order to test the synchronicity of the marine biota response. Pollen data available for some of the compiled marine sequences also offer the opportunity to directly compare marine biota with terrestrial ecosystem responses. This spatio-temporal compilation reveals that, over the last 800 ka, surface waters around Iberia were tightly coupled to (rapid) climate changes and were characterised by coherent dinocyst assemblage patterns, highlighting a permanent connection between Atlantic and Mediterranean waters as evidenced through a continuous exchange of dinocyst populations. Some index species well illustrate the evolution of the regional hydrographic context along time, as for instance Spiniferites and Impagidinium species, together with Lingulodinium machaerophorum, Bitectatodinium tepikiense and heterotrophic brown cysts. They constitute key bio-indicators in context of natural environmental shifts at long and short timescales. info:eu-repo/semantics/publishedVersion
Published: 2015
Full Text: View/download PDF

14. The Ocean Sampling Day Consortium

Author: Oleksandra Bobrova, Petra ten Hoopen, Rodrigo Costa, Rania Siam, Rehab Z. Abdallah, Jorge A. Herrera Silveira, Catarina Magalhães, Nedime Serakinci, Marie E. DeLorenzo, Riccardo Rosselli, Paul Malthouse, Lise Øvreås, Eyjólfur Reynisson, Susan Gebbels, Francesca Malfatti, Frank Oliver Glöckner, Federico M. Lauro, Hans Erik Karlsen, David Wallom, Christian Jeanthon, Mark J. Costello, Fergal O'Gara, Nadezhda Todorova, Ana C. Costa, Monia El Bour, Paul D. van Ruth, Ivaylo Kostadinov, Martin Ostrowski, Jed A. Fuhrman, Viggo Marteinsson, Thierry Cariou, Hiroyuki Ogata, Maria Luiza Pedrotti, Emilie Villar, Federico Baltar, Sandi Orlić, Valentina Turk, Katja Lehmann, Dawn Field, Renzo Kottmann, Florence Jude-Lemeilleur, Daniel Vaulot, Alessandro Vezzi, Neil M Davies, Mahrous M. Kandil, Véronique Berteaux-Lecellier, Christopher D. Sinigalliano, Timothy W. Davis, Peter N. Golyshin, Stéphane L'Haridon, Jonathan A. Martinez, Sandra Ramos, Pascal Conan, Ma. Leopoldina Aguirre-Macedo, Antonio Fernandez-Guerra, Soumya Essayeh, Clara Loureiro, Edvardsen Bente, Noureddine Boukhatem, Rachelle M. Jensen, Sophie Pitois, Bouchra Chaouni, Kate Munnik, Anke Kremp, Stephane Pesant, Roberto Danovaro, Cecilia Alonso, Said Barrijal, Jodie van de Kamp, Michail M. Yakimov, Nicole J. Poulton, Zackary I. Johnson, Adriana Zingone, Bernardo Duarte, Ilkay Salihoglu, Paraskevi N. Polymenakou, Jack A. Gilbert, Melody S. Clark, Ian Salter, Hassan Ghazal, Julie LaRoche, J. Mortelmans, Ranjith Edirisinghe, Grazia Marina Quero, Dion Matthew Frederick Frampton, Isabel Caçador, Georgios Tsiamis, Declan C. Schroeder, Jamie Hinks, Ana Martins, Noga Stambler, Rachel Collin, João Canning-Clode, Tinkara Tinta, Mesude Bicak, Scott Jones, Valentina Amaral, Matthias S. Ullrich, Gunnar Gerdts, Klaas Deneudt, Michael Steinke, Mohamed Bennani, Rafael Santana, Fabio De Pascale, Jennifer Tolman, Juan Iriberri, Levente Bodrossy, Abderrahim Bouali, Antonella Penna, Bruno Cataletto, Josep M. Gasol, Florencia Biancalana, Maribeth L. Gidley, Stephen A. Jackson, Mahmut Cerkez Ergoren, Carolin R. Löscher, Antje Wichels, Ventzislav Karamfilov, R. Eric Collins, Sara Ettamimi, Riccardo Schiavon, Mohammed Timinouni, Christina Bienhold, Julia Schnetzer, Marc E. Frischer, Wayne J. Fuller, Simon Claus, Ibon Cancio, Guy Cochrane, Patrick Martin, Gian Marco Luna, Snejana Moncheva, Linda A. Amaral-Zettler, Eva C. Sonnenschein, Paul Anders Fronth Nyhus, Shiao Y. Wang, Antonina Dos Santos, Eyal Rahav, Eileen Bresnan, Anna Kopf, Barker Katherine, Michèle Barbier, Naiara Rodríguez-Ezpeleta, Kemal Can Bizsel, Tim Ingleton, Patricia Wecker, Julia A. Busch, Kelly D. Goodwin, El Houcine Zaid, Rajaa Chahboune, Takashi Yoshida, Fatima El Otmani, Marianna Mea, Nina Dzhembekova, Anne-Lise Ducluzeau, Christopher P. Meyer, Georgios Kotoulas, Max Planck Institute for Marine Microbiology, Max-Planck-Gesellschaft, Jacobs University [Bremen], University of Oxford, Centre for Ecology & Hydrology, Oxfordshire UK, Adaptation et diversité en milieu marin (AD2M), Station biologique de Roscoff [Roscoff] (SBR), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Israel Oceanographic and Limnological Research (IOLR), Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung (AWI), Hellenic Centre for Marine Research (HCMR), American University in Cairo, Danmarks Tekniske Universitet = Technical University of Denmark (DTU), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), University College Cork (UCC), Curtin University [Perth], Planning and Transport Research Centre (PATREC), Institut Ruder Boskovic, Institut Ruđer Bošković (IRB), University of Essex, Carl Von Ossietzky Universität Oldenburg = Carl von Ossietzky University of Oldenburg (OFFIS), Universidade de Lisboa = University of Lisbon (ULISBOA), Smithonian Environmental Research Center, Research Center, Odessa National I.I.Mechnikov University, Matis Ltd, Universidade dos Açores, Istituto di Science Marine (ISMAR ), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Helmholtz Centre for Ocean Research [Kiel] (GEOMAR), Finnish Environment Institute (SYKE), National Oceanic and Atmospheric Administration (NOAA), University of Bergen (UiB), Dalhousie University [Halifax], Università di Urbino, Skidaway Institute of Oceanography, Smithsonian Institution, Interdisciplinary Centre of Marine and Environmental Research [Matosinhos, Portugal] (CIIMAR), Universidade do Porto = University of Porto, Environnements et Paléoenvironnements OCéaniques (EPOC), Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV), Mississippi State University [Mississippi], Bigelow Laboratory for Ocean Sciences, Smithsonian Marine Station, Smithsonian Tropical Research Institute, University of Southern California (USC), Laboratoire d'Océanographie Microbienne (LOMIC), Observatoire océanologique de Banyuls (OOB), Universidad de la República [Montevideo] (UDELAR), Bar-Ilan University [Israël], The Interuniversity Institute for marine Science in Eilat, IAMC-CNR, Istituto per l'Ambiente Marino Costiero &ndash, University of Otago [Dunedin, Nouvelle-Zélande], Commonwealth Scientific and Industrial Research Organisation [Canberra] (CSIRO), Macquarie University, South Australian Research and Development Institute (SARDI), South Australian Research and Development Institute, Flanders Marine Institute, VLIZ, Centre for Environment, Fisheries and Aquaculture Science [Weymouth] (CEFAS), University of Algarve [Portugal], Marine Biological Association of the UK, Department of Chemistry, Alexandria University [Alexandrie], Argentine Institute of Oceanography, Laboratoire d'océanographie de Villefranche (LOV), Observatoire océanologique de Villefranche-sur-mer (OOVM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Kyoto University, University of Tasmania [Hobart, Australia] (UTAS), Waters, wetlands & coasts Sydney, Lwande technologies Cape Town, AZTI (AZTI), AZTI, Centre de recherches insulaires et observatoire de l'environnement (CRIOBE), Université de Perpignan Via Domitia (UPVD)-École Pratique des Hautes Études (EPHE), University of the Basque Country/Euskal Herriko Unibertsitatea (UPV/EHU), Université Mohammed Premier [Oujda], Université Mohammed V de Rabat [Agdal] (UM5), Université Sidi Mohamed Ben Abdellah (USMBA), Université Abdelmalek Essaâdi (UAE), Institut Pasteur du Maroc, Réseau International des Instituts Pasteur (RIIP), Faculty of Sciences, Rabat, Morocco., Bulgarian Academy of Sciences (BAS), European Bioinformatics Institute [Hinxton] (EMBL-EBI), EMBL Heidelberg, Université de Brest (UBO), Dokuz Eylül Üniversitesi = Dokuz Eylül University [Izmir] (DEÜ), Università degli Studi di Padova = University of Padua (Unipd), Singapore centre for environmental life sciences engineering, Nanyang Technological University [Singapour], Indigo V Expeditions, Newcastle University [Newcastle], Instituto Português de Investigação do Mar e da Atmosfera (IPMA), Information génomique et structurale (IGS), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Universität Bremen, Istituto Nazionale di Geofisica e di Oceanografia Sperimentale (OGS), Rajarata University of Sri-Lanka (RUSL), University of Southern Mississippi (USM), Mediterranean Science Commission, National institute of biology Fornace, Near East University, Marine Scotland Marine Laboratory, Kind of Blue Project ABS, University of Oslo (UiO), Marine biology research station, Bangor University, Institute of Marine Sciences / Institut de Ciències del Mar [Barcelona] (ICM), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Fridtjof Nansen Institute of oceanology, Duke University [Durham], Miami University, Miami University [Ohio] (MU), Stazione Zoologica Anton Dohrn (SZN), Polytechnic University of Marche, University of Patras, British Antarctic Survey (BAS), Natural Environment Research Council (NERC), INSTIM, University of Alaska [Fairbanks] (UAF), University of Hawaii, University of Auckland [Auckland], Marine Biological Laboratory (MBL), University of Chicago, Brown University, Zhejiang University, Argonne National Laboratory [Lemont] (ANL), Department of Mathematics [Berkeley], University of California [Berkeley] (UC Berkeley), University of California (UC)-University of California (UC), Repositório da Universidade de Lisboa, Kopf, A, Bicak, M, Kottmann, R, Schnetzer, J, Kostadinov, I, Lehmann, K, Fernandez-Guerra, A, Jeanthon, C, Rahav, E, Ullrich, M, Wichels, A, Gerdts, G, Polymenakou, P, Kotoulas, G, Siam, R, Abdallah, Rz, Sonnenschein, Ec, Cariou, T, O'Gara, F, Jackson, S, Orlic, S, Steinke, M, Busch, J, Duarte, B, Cacador, I, Canning-Clode, J, Bobrova, O, Marteinsson, V, Reynisson, E, Loureiro, Cm, Luna, Gm, Quero, Gm, Loscher, Cr, Kremp, A, Delorenzo, Me, Ovreas, L, Tolman, J, Laroche, J, Penna, A, Frischer, M, Davis, T, Katherine, B, Meyer, Cp, Ramos, S, Magalhaes, C, Jude-Lemeilleur, F, Aguirre-Macedo, Ml, Wang, S, Poulton, N, Jones, S, Collin, R, Fuhrman, Ja, Conan, P, Alonso, C, Stambler, N, Goodwin, K, Yakimov, Mm, Baltar, F, Bodrossy, L, Van De Kamp, J, Frampton, Dmf, Ostrowski, M, Van Ruth, P, Malthouse, P, Claus, S, Deneudt, K, Mortelmans, J, Pitois, S, Wallom, D, Salter, I, Costa, R, Schroeder, Dc, Kandil, Mm, Amaral, V, Biancalana, F, Santana, R, Pedrotti, Ml, Yoshida, T, Ogata, H, Ingleton, T, Munnik, K, Rodriguez-Ezpeleta, N, Berteaux-Lecellier, V, Wecker, P, Cancio, I, Vaulot, D, Bienhold, C, Ghazal, H, Chaouni, B, Essayeh, S, Ettamimi, S, Zaid, E, Boukhatem, N, Bouali, A, Chahboune, R, Barrijal, S, Timinouni, M, El Otmani, F, Bennani, M, Mea, M, Todorova, N, Karamfilov, V, ten Hoopen, P, Cochrane, G, L'Haridon, S, Bizsel, Kc, Vezzi, A, Lauro, Fm, Martin, P, Jensen, Rm, Hinks, J, Gebbels, S, Rosselli, R, De Pascale, F, Schiavon, R, dos Santos, A, Villar, E, Pesant, S, Cataletto, B, Malfatti, F, Edirisinghe, R, Silveira, Jah, Barbier, M, Turk, V, Tinta, T, Fuller, Wj, Salihoglu, I, Serakinci, N, Ergoren, Mc, Bresnan, E, Iriberri, J, Nyhus, Paf, Bente, E, Karlsen, He, Golyshin, Pn, Gasol, Jm, Moncheva, S, Dzhembekova, N, Johnson, Z, Sinigalliano, Cd, Gidley, Ml, Zingone, A, Danovaro, R, Tsiamis, G, Clark, M, Costa, Ac, El Bour, M, Martins, Am, Collins, Re, Ducluzeau, Al, Martinez, J, Costello, Mj, Amaral-Zettler, La, Gilbert, Ja, Davies, N, Field, D, Glockner, Fo, European Commission, University of Oxford [Oxford], Israel Oceanographic and Limnological Research - IOLR (ISRAEL), Danmarks Tekniske Universitet (DTU), Carl Von Ossietzky Universität Oldenburg, Universidade de Lisboa (ULISBOA), Consiglio Nazionale delle Ricerche (CNR), Universidade do Porto, UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE), Universidad de la República [Montevideo] (UCUR), Kyoto University [Kyoto], Université de Perpignan Via Domitia (UPVD)-École pratique des hautes études (EPHE), University of Mohammed V, Sidi Mohammed Ben Abdellah University, Universita degli Studi di Padova, Rajarata University of Sri-Lanka, University of Patras [Patras], University of California [Berkeley], and University of California-University of California
Subjects: 0106 biological sciences, Biodiversity, Marine life, 01 natural sciences, Bacteria, Genomics, Health Index, Marine, Metagenomics, Micro B3, Microorganism, OSD, Ocean sampling day, Standards, 11. Sustainability, Data and Information, Ocean Sampling Day, biodiversity, genomics, health index, bacteria, microorganism, metagenomics, marine, standards, [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, 0303 health sciences, Ecology, Environmental resource management, Geology, Computer Science Applications, Interdisciplinary Natural Sciences, Microbial biodiversity, [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology, Ocean sampling day, OSD, Biodiversity, Genomics, Health Index, Bacteria, Microorganism, Metagenomics,Marine, Micro B3, Standards, Oceans and Seas, Microorganisms, Marine Biology, Health Informatics, [SDV.BID]Life Sciences [q-bio]/Biodiversity, Biology, Ecology and Environment, Metagenomic, 03 medical and health sciences, Health index, Medisinske Fag: 700 [VDP], SDG 14 - Life Below Water, 14. Life underwater, 030304 developmental biology, business.industry, 010604 marine biology & hydrobiology, Ocean sampling, 13. Climate action, Commentary, Genomic, Database Management Systems, Global Ocean, business
Abstract: Kopf, Anna ... et. al.-- 5 pages, 1 figure.-- This manuscript is NOAA-GLERL contribution number 1763, Ocean Sampling Day was initiated by the EU-funded Micro B3 (Marine Microbial Biodiversity, Bioinformatics, Biotechnology) project to obtain a snapshot of the marine microbial biodiversity and function of the world’s oceans. It is a simultaneous global mega-sequencing campaign aiming to generate the largest standardized microbial data set in a single day. This will be achievable only through the coordinated efforts of an Ocean Sampling Day Consortium, supportive partnerships and networks between sites. This commentary outlines the establishment, function and aims of the Consortium and describes our vision for a sustainable study of marine microbial communities and their embedded functional traits, This work was supported by the Micro B3 project, which is funded from the European Union’s Seventh Framework Programme (FP7; Joint Call OCEAN.2011‐2: Marine microbial diversity – new insights into marine ecosystems functioning and its biotechnological potential) under the grant agreement no 287589
Published: 2015
Full Text: View/download PDF

15. The Gibraltar subduction: A decade of new geophysical data

Author: Stephane Dominguez, Valenti Sallares, Belin Jude, Pedro Terrinha, Behzad Nazemroaya, Anwar Shidiq, Rafael Bartolome, Joao Duarte, Filipe Rosas, BHAVANI SANKAR, ‪AQEEL ATTABY, Marc-Andre Gutscher, JORGE MIGUEL MIRANDA, Manmohan Sharma, Arash Issaee, Adi Mursalin, Andi Mallanti, Domaines Océaniques (LDO), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Observatoire des Sciences de l'Univers-Institut d'écologie et environnement-Centre National de la Recherche Scientifique (CNRS), Géosciences Montpellier, Université des Antilles et de la Guyane (UAG)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), University Birmingham, University of Birmingham [Birmingham], Geology Department, Universidade de Lisboa = University of Lisbon (ULISBOA), School of Geosciences, Monash University [Clayton], Instituto Português de Investigação do Mar e da Atmosfera (IPMA), FFCUL/CGUL Centro de Geofisica, Universidade de Libsoa, Commissariat à l'Energie Atomique, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Unitat de Tecnologia Marina, Centre Mediterrani d'Investigacions Marines I ambientals, European Project: 34220,NEAREST, and Universidade de Lisboa (ULISBOA)
Subjects: Accretionary wedge, 010504 meteorology & atmospheric sciences, [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph], [SDE.MCG]Environmental Sciences/Global Changes, [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph], 010502 geochemistry & geophysics, 01 natural sciences, Mantle (geology), Oceanic crust, Roll-back subduction, Earthquakes, 14. Life underwater, Seismic refraction, Eclogitization, 0105 earth and related environmental sciences, Earth-Surface Processes, Subduction, Active deformation, Geophysics, Plate tectonics, Tectonics, Tethys oceanic lithosphere, 13. Climate action, Iberia, Geology, Seismology
Abstract: Review article.-- 20 pages, 18 figures, The Gibraltar arc, spans a complex portion of the Africa–Eurasia plate boundary marked by slow oblique convergence and intermediate and deep focus seismicity. The seemingly contradictory observations of a young extensional marine basin surrounded by an arcuate fold-and-thrust belt, have led to competing geodynamic models (delamination and subduction). Geophysical data acquired in the past decade provide a test for these models and support a narrow east-dipping, subduction zone. Seismic refraction studies indicate oceanic crust below the western Gulf of Cadiz. Tomography of the upper mantle reveals a steep, east-dipping high P-wave velocity body, beneath Gibraltar. The anisotropic mantle fabric from SKS splitting shows arc-parallel “fast directions”, consistent with toroidal flow around a narrow, westward retreating subducting slab. The accompanying WSW advance of the Rif–Betic mountain belt has constructed a thick pile of deformed sediments, an accretionary wedge, characterized by west-vergent thrust anticlines. Bathymetric swath‐mapping images an asymmetric embayment at the deformation front where a 2 km high basement ridge has collided. Subduction has slowed significantly since 5 Ma, but deformation of recent sediments and abundant mud volcanoes suggest ongoing activity in the accretionary wedge. Three possible origins for this deformation are discussed; gravitational spreading, overall NW–SE convergence between Africa and Iberia and finally a WSW tectonic push from slow, but ongoing roll-back subduction. In the absence of arc volcanism and shallow dipping thrust type earthquakes, evidence in favor of present-day subduction can only be indirect and remains the object of debate. Continued activity of the subduction offers a possible explanation for great (M > 8.5) earthquakes known to affect the area, like the famous 1755 Great Lisbon earthquake. Recent GPS studies show SW motion of stations in N Morocco at velocities of 3–6 mm/yr indicating the presence of an independent block, a “Rif–Betic–Alboran” microplate, situated between Iberia and Africa, Much of this work was funded by the EU FP6 project NEAREST. The Nearest-Seis survey was funded by the complementary action #CGL2006-27098-E/BTE of the Spanish MICINN. We thank the Captains and crews of the vessels involved in the acquisition of all of this new data, and without whose efforts, this wealth of new data could never have been acquired. We also thank many other Spanish, Portuguese, German and Dutch colleagues who have contributed significantly to the collective efforts to advance our understanding of the tectonics in this complex region. J.C. Duarte acknowledges support from the Australian Research Council through Discovery Grant DP110103387. P.R. and F.R. acknowledge support from the projects TOPOMED — “Plate re-organization in the western Mediterranean: lithospheric causes and topographic consequences”, and SWIMGLO (refs. TOPOEUROPE/0001/2007 and SWIMGLO — PTDC/MAR/100522/2008)
Published: 2012
Full Text: View/download PDF

16. Planktonic foraminifera from modern sediments reflect upwelling patterns off Iberia: Insights from a regional transfer function

Author: Uwe Pflaumann, Paulo B. Oliveira, Neven Loncaric, Helge Meggers, João Moreno, Raquel González-Álvarez, Helga B Bartels-Jonsdottir, Emilia Salgueiro, Antje H L Voelker, Gerold Wefer, Fatima F Abrantes, Instituto Português de Investigação do Mar e da Atmosfera (IPMA), Geologisch-Palaontologisches Institut, Marine Geology Department, Kiel University, Laboratoire de Planétologie et Géodynamique - Angers (LPG-ANGERS), Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centro de Geociencias, Federal University of Para - Universidade Federal do Para [Belem - Brésil], Center for Marine Environmental Sciences [Bremen] (MARUM), and Universität Bremen
Subjects: 010506 paleontology, 010504 meteorology & atmospheric sciences, Oceanography, 01 natural sciences, Foraminifera, planktonic foraminifera, Sea Surface Temperature, 14. Life underwater, Globigerinoides, 0105 earth and related environmental sciences, biology, Upwelling, Paleontology, Sediment, Globigerina bulloides, Plankton, biology.organism_classification, Iberian margin, Sea surface temperature, Sinistral and dextral, 13. Climate action, [SDU]Sciences of the Universe [physics], transfer functions, Geology
Abstract: International audience; Quantitative and qualitative analyses of planktonic foraminiferal assemblages from 134 core-top sediment samples collected along the western Iberian margin were used to assess the latitudinal and longitudinal changes in surface water conditions and to calibrate a Sea Surface Temperature (SST) transfer function for this seasonal coastal upwelling region. Q-mode factor analysis performed on relative abundances yielded three factors that explain 96% of the total variance: factor 1 (50%) is exclusively defined by Globigerina bulloides, the most abundant and widespread species, and reflects the modern seasonal (May to September) coastal upwelling areas; factor 2 (32%) is dominated by Neogloboquadrina pachyderma (dextral) and Globorotalia inflata and seems to be associated with the Portugal Current, the descending branch of the North Atlantic Drift; factor 3 (14%) is defined by the tropical–sub-tropical species Globigerinoides ruber (white), Globigerinoides trilobus trilobus, and G. inflata and mirrors the influence of the winter-time eastern branch of the Azores Current. In conjunction with satellite-derived SST for summer and winter seasons integrated over an 18year period the regional foraminiferal data set is used to calibrate a SST transfer function using Imbrie & Kipp, MAT and SIMMAXndw techniques. Similar predicted errors (RMSEP), correlation coefficients, and residuals' deviation from SST estimated for both techniques were observed for both seasons. All techniques appear to underestimate SST off the southern Iberia margin, an area mainly occupied by warm waters where upwelling occurs only occasionally, and overestimate SST on the northern part of the west coast of the Iberia margin, where cold waters are present nearly all year round. The comparison of these regional calibrations with former Atlantic and North Atlantic calibrations for two cores, one of which is influenced by upwelling, reveals that the regional one attests more robust paleo-SSTs than for the other approaches.
Published: 2008
Full Text: View/download PDF

17. Assimilation of remote sensing data to monitor the terrestrial carbon cycle: the carbon observatory of geoland

Author: B. J. J. M. van den Hurk, A. Kaptein, P. Ciais, Jean-Christophe Calvet, J. Muñoz Sabater, Eddy Moors, M. Leroy, Pedro Viterbo, Météo France, Instituto Português de Investigação do Mar e da Atmosfera (IPMA), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), ICOS-ATC (ICOS-ATC), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Royal Netherlands Meteorological Institute (KNMI), Météo-France Direction Interrégionale Sud-Est (DIRSE), Météo-France, Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)
Subjects: 010504 meteorology & atmospheric sciences, Meteorology, 0207 environmental engineering, Weather forecasting, Eddy covariance, Weather and climate, 02 engineering and technology, computer.software_genre, 7. Clean energy, 01 natural sciences, Carbon cycle, Data assimilation, 020701 environmental engineering, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, ComputingMilieux_MISCELLANEOUS, 0105 earth and related environmental sciences, Remote sensing, [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, Carbon accounting, Biosphere, Soil carbon, 15. Life on land, 13. Climate action, Climatology, Environmental science, computer
Abstract: The existing land data assimilation projects (NLDAS, GLDAS, ELDAS) do not include interactive vegetation land surface models, which limits the use of remote sensing data. The analysed variable in LDAS is soil moisture, only, and there is a need to account for vegetation biomass to monitor the biosphere vegetation-atmosphere CO2 exchange. The geoland Integrated Project (2004-2007) co-funded by the European Commission, aims at addressing European and global environment issues, based on the use of remote sensing data. The carbon observatory of geoland, hereinafter referred to as "geoland/Carbon", provides a pre-operational global carbon accounting system, dealing with the impact of weather and climate variability on ecosystems fluxes and carbon stocks, on daily to seasonal and inter-annual time scales. The solution chosen in geoland/Carbon is to merge the LDAS approach and the interactive vegetation models, by making two communities work together: the meteorologists involved in ELDAS and the carbon modellers. In particular, we investigate the relationship between weather and climate variability and terrestrial CO2 fluxes. The integration of in situ meteorological measurements and different satellite remote sensing sources of information are made by using assimilation techniques. In order to integrate the existing approaches and to deliver an assessment based on independent modelling results, two land surface models are used: 1) an operational scheme (ECMWF) used in numerical weather forecast models, modified to describe an interactive vegetation (based on ISBA-A-gs, Meteo-France); 2) a carbon-water-energy land surface scheme, fitted with carbon dynamics in biomass and soil pools, and with ecosystem dynamics (LSCE). The assimilation system can be run at the global scale with both carbon models. The assimilated output fields are checked against global observations of different nature, such as eddy covariance networks, long term ecological time series (e.g. IGBP transects), forest and soil carbon inventories, or satellite products that were not used at first in the assimilation procedure. At the end of this project, ECMWF is able to propose a single near-operational system based on components of the two approaches
Published: 2004
Full Text: View/download PDF

Catalog

Books, media, physical & digital resources

See catalog results

Searchworks

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources

Refine your results

17 results on '"Instituto Português de Investigação do Mar e da Atmosfera (IPMA)"'

1. The CISE-LOCEAN sea water isotopic database (1998–2021)

2. Contrasting impacts of climate change on connectivity and larval recruitment to estuarine nursery areas

3. Food-web dynamics in the Portuguese continental shelf ecosystem between 1986 and 2017: Unravelling drivers of sardine decline

4. Use of GNSS Tropospheric Products for Climate Monitoring (Working Group 3)

5. Surface and deep water variability in the Western Mediterranean (ODP Site 975) during insolation cycle 74: High-resolution calcareous plankton and molecular biomarker signals

6. Conflicts in the coastal zone : Human impacts on commercially important fish species utilizing coastal habitat

7. Mariana serpentinite mud volcanism exhumes subducted seamount materials: implications for the origin of life

8. A review of earth surface thermal radiation directionality observing and modeling: Historical development, current status and perspectives

9. Environmental risks associated with contaminants of legacy and emerging concern at European aquaculture areas

10. The Li isotope composition of marine biogenic carbonates: Patterns and Mechanisms

11. Particle fluxes in the NW Iberian coastal upwelling system: Hydrodynamical and biological control

12. Evaluating changes in marine communities that provide ecosystem services through comparative assessments of community indicators

13. Dinoflagellate cyst population evolution throughout past interglacials: Key features along the Iberian margin and insights from the new IODP Site U1385 (Exp 339)

14. The Ocean Sampling Day Consortium

15. The Gibraltar subduction: A decade of new geophysical data

16. Planktonic foraminifera from modern sediments reflect upwelling patterns off Iberia: Insights from a regional transfer function

17. Assimilation of remote sensing data to monitor the terrestrial carbon cycle: the carbon observatory of geoland

Catalog

Searchworks

Select search scope, currently: Articles Catalog books, media & more in Jio Institute collections Articles journal articles & other e-resources

Search

Search Constraints

Refine your results

Search Limiters

Topic

Publication Year Range

Language

Journal

Database

Publisher

17 results on '"Instituto Português de Investigação do Mar e da Atmosfera (IPMA)"'

Search Results

Catalog

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources