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4. Drought impacts on vegetation activity in the Mediterranean region: An assessment using remote sensing data and multi-scale drought indicators

Author

Fundação para a Ciência e a Tecnologia (Portugal), Comisión Interministerial de Ciencia y Tecnología, CICYT (España), European Commission, Gouveia, C. M., Trigo, Ricardo M., Beguería, Santiago, Vicente Serrano, Sergio M., Fundação para a Ciência e a Tecnologia (Portugal), Comisión Interministerial de Ciencia y Tecnología, CICYT (España), European Commission, Gouveia, C. M., Trigo, Ricardo M., Beguería, Santiago, and Vicente Serrano, Sergio M.

Abstract

The present work analyzes the drought impacts on vegetation over the entire Mediterranean basin, with the purpose of determining the vegetation communities, regions and seasons at which vegetation is driven by drought. Our approach is based on the use of remote sensing data and a multi-scalar drought index. Correlation maps between fields of monthly Normalized Difference Vegetation Index (NDVI) and the Standardized Precipitation-Evapotranspiration Index (SPEI) at different time scales (1–24 months) were computed for representative months of winter (Feb), spring (May), summer (Aug) and fall (Nov). Results for the period from 1982 to 2006 show large areas highly controlled by drought, although presenting high spatial and seasonal differences, with a maximum influence in August and a minimum in February. The highest correlation values are observed in February for 3 months' time scale and in May for 6 and 12 months. The higher control of drought on vegetation in February and May is obtained mainly over the drier vegetation communities (Mediterranean Dry and Desertic) at shorter time scales (3 to 9 months). Additionally, in February the impact of drought on vegetation is lower for Temperate Oceanic and Continental vegetation types and takes place at longer time scales (18–24). The dependence of drought time-scale response with water balance, as obtained through a simple difference between precipitation and reference evapotranspiration, varies with vegetation communities. During February and November low water balance values correspond to shorter time scales over dry vegetation communities, whereas high water balance values implies longer time scales over Temperate Oceanic and Continental areas. The strong control of drought on vegetation observed for Mediterranean Dry and Desertic vegetation types located over areas with high negative values of water balance emphasizes the need for an early warning drought system covering the entire Mediterranean basin. We are confident

Published
2017

7. STATE OF THE CLIMATE IN 2011 Special Supplement to the Bulletin of the American Meteorological Society Vol. 93, No. 7, July 2012

Author

Arndt, D. S., Blunden, J., Willett, K. M., Dolman, A. J., Hall, B. D., Thorne, P. W., Gregg, M. C., Newlin, M. L., Xue, Y., Hu, Z., Kumar, A., Banzon, V., Smith, T. M., Rayner, N. A., Jeffries, M. O., Richter-Menge, J., Overland, J., Bhatt, U., Key, J., Liu, Y., Walsh, J., Wang, M., Fogt, R. L., Scambos, T. A., Wovrosh, A. J., Barreira, S., Sanchez-Lugo, A., Renwick, J. A., Thiaw, W. M., Weaver, S. J., Whitewood, R., Phillips, D., Achberger, C., Ackerman, S. A., Ahmed, F. H., Albanil-Encarnacion, A., Alfaro, E. J., Alves, L. M., Allan, R., Amador, J. A., Ambenje, P., Antoine, M. D., Antonov, J., Arevalo, J., Ashik, I., Atheru, Z., Baccini, A., Baez, J., Baringer, M. O., Barriopedro, D. E., Bates, J. J., Becker, A., Behrenfeld, M. J., Bell, G. D., Benedetti, A., Bernhard, G., Berrisford, P., Berry, D. I., Beszczynska-Moeller, A., Bhatt, U. S., Bidegain, M., Bieniek, P., Birkett, C., Bissolli, P., Blake, E. S., Boudet-Rouco, D., Box, J. E., Boyer, T., Braathen, G. O., Brackenridge, G. R., Brohan, P., Bromwich, D. H., Brown, L., Brown, R., Bruhwiler, L., Bulygina, O. N., Burrows, J., Calderon, B., Camargo, S. J., Cappellen, J., Carmack, E., Carrasco, G., Chambers, D. P., Christiansen, H. H., Christy, J., Chung, D., Ciais, P., Coehlo, C. A. S., Colwell, S., Comiso, J., Cretaux, J. F., Crouch, J., Cunningham, S. A., Jeu, R. A. M., Demircan, M., Derksen, C., Diamond, H. J., Dlugokencky, E. J., Dohan, K., Dorigo, W. A., Drozdov, D. S., Duguay, C., Dutton, E., Dutton, G. S., Elkins, J. W., Epstein, H. E., Famiglietti, J. S., Fanton D Andon, O. H., Feely, R. A., Fekete, B. M., Fenimore, C., Fernandez-Prieto, D., Fields, E., Fioletov, V., Folland, C., Foster, M. J., Frajka-Williams, E., Franz, B. A., Frey, K., Frith, S. H., Frolov, I., Frost, G. V., Ganter, C., Garzoli, S., Gitau, W., Gleason, K. L., Gobron, N., Goldenberg, S. B., Goni, G., Gonzalez-Garcia, I., Gonzalez-Rodriguez, N., Good, S. A., Goryl, P., Gottschalck, J., Gouveia, C. M., Griffiths, G. M., Grigoryan, V., Grooss, J. U., Guard, C., Guglielmin, M., Halpert, M. S., Heidinger, A. K., Heikkila, A., Heim, R. R., Hennon, P. A., Hidalgo, H. G., Hilburn, K., Ho, S. P., Hobbs, W. R., Holgate, S., Hook, S. J., Hovsepyan, A., Hu, Z. Z., Hugony, S., Hurst, D. F., Ingvaldsen, R., Itoh, M., Jaimes, E., Jeffries, M., Johns, W. E., Johnsen, B., Johnson, B., Johnson, G. C., Jones, L. T., Jumaux, G., Kabidi, K., Kaiser, J. W., Kang, K. K., Kanzow, T. O., Kao, H. Y., Keller, L. M., Kendon, M., Kennedy, J. J., Kervankiran, S., Khatiwala, S., Kholodov, A. L., Khoshkam, M., Kikuchi, T., Kimberlain, T. B., King, D., Knaff, J. A., Korshunova, N. N., Koskela, T., Kratz, D. P., Krishfield, R., Kruger, A., Kruk, M. C., Lagerloef, G., Lakkala, K., Lammers, R. B., Lander, M. A., Landsea, C. W., Lankhorst, M., Lapinel-Pedroso, B., Lazzara, M. A., Leduc, S., Lefale, P., Leon, G., Leon-Lee, A., Leuliette, E., Levitus, S., L Heureux, M., Lin, II, Liu, H. X., Liu, Y. J., Lobato-Sanchez, R., Locarnini, R., Loeb, N. G., Loeng, H., Long, C. S., Lorrey, A. M., Lumpkin, R., Myhre, C. L., Jing-Jia Luo, Lyman, J. M., Maccallum, S., Macdonald, A. M., Maddux, B. C., Manney, G., Marchenko, S. S., Marengo, J. A., Maritorena, S., Marotzke, J., Marra, J. J., Martinez-Sanchez, O., Maslanik, J., Massom, R. A., Mathis, J. T., Mcbride, C., Mcclain, C. R., Mcgrath, D., Mcgree, S., Mclaughlin, F., Mcvicar, T. R., Mears, C., Meier, W., Meinen, C. S., Menendez, M., Merchant, C., Merrifield, M. A., Miller, L., Mitchum, G. T., Montzka, S. A., Moore, S., Mora, N. P., Morcrette, J. J., Mote, T., Muhle, J., Mullan, A. B., Muller, R., Myhre, C., Nash, E. R., Nerem, R. S., Newman, P. A., Ngari, A., Nishino, S., Njau, L. N., Noetzli, J., Oberman, N. G., Obregon, A., Ogallo, L., Oludhe, C., Oyunjargal, L., Parinussa, R. M., Park, G. H., Parker, D. E., Pasch, R. J., Pascual-Ramirez, R., Pelto, M. S., Penalba, O., Perez-Suarez, R., Perovich, D., Pezza, A. B., Pickart, R., Pinty, B., Pinzon, J., Pitts, M. C., Pour, H. K., Prior, J., Privette, J. L., Proshutinsky, A., Quegan, S., Quintana, J., Rabe, B., Rahimzadeh, F., Rajeevan, M., Rayner, D., Raynolds, M. K., Razuvaev, V. N., Reagan, J., Reid, P., Revadekar, J., Rex, M., Rivera, I. L., Robinson, D. A., Rodell, M., Roderick, M. L., Romanovsky, V. E., Ronchail, J., Rosenlof, K. H., Rudels, B., Sabine, C. L., Santee, M. L., Sawaengphokhai, P., Sayouri, A., Schauer, U., Schemm, J., Schmid, C., Schreck, C., Semiletov, I., Send, U., Sensoy, S., Shakhova, N., Sharp, M., Shiklomanov, N. I., Shimada, K., Shin, J., Siegel, D. A., Simmons, A., Skansi, M., Sokolov, V., Spence, J., Srivastava, A. K., Stackhouse, P. W., Stammerjohn, S., Steele, M., Steffen, K., Steinbrecht, W., Stephenson, T., Stolarski, R. S., Sweet, W., Takahashi, T., Taylor, M. A., Tedesco, M., Thepaut, J. N., Thompson, P., Timmermans, M. L., Tobin, S., Toole, J., Trachte, K., Trewin, B. C., Trigo, R. M., Trotman, A., Tucker, C. J., Ulupinar, Y., Wal, R. S. W., Werf, G. R., Vautard, R., Votaw, G., Wagner, W. W., Wahr, J., Walker, D. A., Wang, C. Z., Wang, J. H., Wang, L., Wang, M. H., Wang, S. H., Wanninkhof, R., Weaver, S., Weber, M., Weingartner, T., Weller, R. A., Wentz, F., Wilber, A. C., Williams, W., Willis, J. K., Wilson, R. C., Wolken, G., Wong, T. M., Woodgate, R., Yamada, R., Yamamoto-Kawai, M., Yoder, J. A., Yu, L. S., Yueh, S., Zhang, L. Y., Zhang, P. Q., Zhao, L., Zhou, X. J., Zimmermann, S., Zubair, L., Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), 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 de Recherche pour le Développement (IRD)-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), National Oceanic and Atmospheric Administration (NOAA), Lamont-Doherty Earth Observatory (LDEO), Columbia University [New York], Space Technology Center, European Centre for Medium-Range Weather Forecasts (ECMWF), Climate Research Division [Toronto], Environment and Climate Change Canada, Earth and Space Research Institute [Seattle] (ESR), Department of Hydrology and Geo-Environmental Sciences [Amsterdam], Vrije Universiteit Amsterdam [Amsterdam] (VU), Vienna University of Technology (TU Wien), Instituto Dom Luiz, Universidade de Lisboa = University of Lisbon (ULISBOA), NOAA Earth System Research Laboratory (ESRL), Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado [Boulder]-National Oceanic and Atmospheric Administration (NOAA), Department of Earth System Science [Irvine] (ESS), University of California [Irvine] (UC Irvine), University of California (UC)-University of California (UC), Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), University of California Center for Hydrologic Modeling [Irvine] (UCCHM), NOAA Pacific Marine Environmental Laboratory [Seattle] (PMEL), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), 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), Extrèmes : Statistiques, Impacts et Régionalisation (ESTIMR), 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), Department of Physics [Boulder], University of Colorado [Boulder], Istituto Nazionale di Fisica Nucleare [Pisa] (INFN), Istituto Nazionale di Fisica Nucleare (INFN), NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML), University at Albany [SUNY], State University of New York (SUNY), Cooperative Institute for Meteorological Satellite Studies (CIMSS), University of Wisconsin-Madison-NASA-National Oceanic and Atmospheric Administration (NOAA), Peking University [Beijing], National Oceanography Centre [Southampton] (NOC), University of Southampton, NOAA National Environmental Satellite, Data, and Information Service (NESDIS), The University of Texas Medical Branch (UTMB), Institut für Umweltphysik [Bremen] (IUP), Universität Bremen, Department of Meteorology, University of Nairobi (UoN), Climate Prediction and Applications Centre (ICPAC), IGAD, Institute for Environment and Sustainability of the JRC, Partenaires INRAE, Met Office Hadley Centre for Climate Change (MOHC), United Kingdom Met Office [Exeter], Agricultural Information Institute (AII), Chinese Academy of Agricultural Sciences (CAAS), Woods Hole Oceanographic Institution (WHOI), Universitá degli Studi dell’Insubria = University of Insubria [Varese] (Uninsubria), Heilongjiang Institute of Science and Technology, Finnish Meteorological Institute (FMI), Universidad de Costa Rica (UCR), University Corporation for Atmospheric Research (UCAR), NOAA Center for Satellite Applications and Research (STAR), National Oceanic and Atmospheric Administration (NOAA)-National Oceanic and Atmospheric Administration (NOAA), ESRL Global Monitoring Laboratory [Boulder] (GML), Materials and structures Laboratory, Tokyo Institute of Technology [Tokyo] (TITECH), Rosenstiel School of Marine and Atmospheric Science (RSMAS), University of Miami [Coral Gables], Norwegian Radiation and Nuclear Safety Authority, Direction Interrégionale de Météo-France pour l'océan Indien (DIROI), Météo-France, Department of Earth Sciences [Oxford], University of Oxford, NASA Langley Research Center [Hampton] (LaRC), University of Hawai‘i [Mānoa] (UHM), Department of Earth and Space Sciences [Seattle], University of Washington [Seattle], Leibniz-Institut für Meereswissenschaften (IFM-GEOMAR), Scripps Institution of Oceanography (SIO - UC San Diego), University of California [San Diego] (UC San Diego), Agroécologie [Dijon], Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Huazhong Agricultural University [Wuhan] (HZAU), NOAA National Weather Service (NWS), Department of Oceanography, Florida State University [Tallahassee] (FSU), Norwegian Institute for Air Research (NILU), Research Institute for Global Change (RIGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), NorthWest Research Associates (NWRA), Department of Physics [Socorro], New Mexico Institute of Mining and Technology [New Mexico Tech] (NMT), Ocean and Earth Science [Southampton], University of Southampton-National Oceanography Centre (NOC), Australian Antarctic Division (AAD), Australian Government, Department of the Environment and Energy, Antarctic Climate and Ecosystems Cooperative Research Centre (ACE-CRC), Massachusetts General Hospital [Boston], Commonwealth Scientific and Industrial Research Organisation [Canberra] (CSIRO), Australian Research Council (ARC), Remote Sensing Systems [Santa Rosa] (RSS), Développement, institutions et analyses de long terme (DIAL), Université Paris Dauphine-PSL, Université Paris sciences et lettres (PSL), NOAA National Marine Fisheries Service (NMFS), University of California (UC), NMR Laboratory, Université de Mons, Université de Mons (UMons), NASA Goddard Space Flight Center (GSFC), Glaciology, Geomorphodynamics and Geochronology, Department of Geography [Zürich], Universität Zürich [Zürich] = University of Zurich (UZH)-Universität Zürich [Zürich] = University of Zurich (UZH), Chemistry Department [Massachusetts Institute of Technology], Massachusetts Institute of Technology (MIT), Nichols College Dudley, ERDC Cold Regions Research and Engineering Laboratory (CRREL), USACE Engineer Research and Development Center (ERDC), European Commission, Space Science and Engineering Center [Madison] (SSEC), University of Wisconsin-Madison, Lausanne University Hospital, Centro de Ciencias do Sistema Terrestre, Instituto Nacional de Pesquisas Espaciais (INPE), University of Sheffield, Hochschule Mannheim - University of Applied Sciences, 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), Indian Institute of Tropical Meteorology (IITM), Ministry of Earth Sciences [India], Woods Hole Research Center, Department of Earth and Environment [Boston], Boston University [Boston] (BU), Centre for Australian Weather and Climate Research (CAWCR), Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung (AWI), Génétique et Ecologie des Virus, Génétique des Virus et Pathogénèse des Maladies Virales, Université Paris Diderot - Paris 7 (UPD7)-Institut National de la Santé et de la Recherche Médicale (INSERM), Department of Botany and Plant Pathology, Oregon State University (OSU), Ctr Ecol & Hydrol, Bangor, Environm Ctr Wales, Biospherical Instruments Inc., Processus de la variabilité climatique tropicale et impacts (PARVATI), 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)-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)), 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), Université Paris Diderot - Paris 7 (UPD7), Instituto Uruguayo de Meteorología, Javier Barrios Amorín 1488, CP 11200, Montevideo, Uruguay, Science Systems and Applications, Inc. [Hampton] (SSAI), National Snow and Ice Data Center (NSIDC), Naval Postgraduate School (NPS), University of California [Berkeley] (UC Berkeley), Centre de physique moléculaire optique et hertzienne (CPMOH), Université Sciences et Technologies - Bordeaux 1 (UB)-Centre National de la Recherche Scientifique (CNRS), CYRIC, Tohoku University [Sendai], The University of Tennessee [Knoxville], Oak Ridge National Laboratory [Oak Ridge] (ORNL), UT-Battelle, LLC, The University Centre in Svalbard (UNIS), Institute of Arctic Alpine Research [University of Colorado Boulder] (INSTAAR), Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Meteorologisches Observatorium Hohenpeißenberg (MOHp), Deutscher Wetterdienst [Offenbach] (DWD), British Antarctic Survey (BAS), Natural Environment Research Council (NERC), 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)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Universidade de Lisboa (ULISBOA), University of California [Irvine] (UCI), University of California-University of California, 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)-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), Universitá degli Studi dell’Insubria, University of Costa Rica, Météo France [Sainte-Clotilde], Météo France, University of Oxford [Oxford], Scripps Institution of Oceanography (SIO), Huazhong Agricultural University, University of California, NMR and Molecular Imaging Laboratory [Mons], University of Mons [Belgium] (UMONS), Lausanne University Hospital [Switzerland], Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Diderot - Paris 7 (UPD7), 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), 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), 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)-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)), Berkeley University of California (UC BERKELEY), Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1, and Institute of Arctic and Alpine Research (INSTAAR)

Subjects
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography
Abstract

International audience; Large-scale climate patterns influenced temperature and weather patterns around the globe in 2011. In particular, a moderate-to-strong La Nina at the beginning of the year dissipated during boreal spring but reemerged during fall. The phenomenon contributed to historical droughts in East Africa, the southern United States, and northern Mexico, as well the wettest two-year period (2010-11) on record for Australia, particularly remarkable as this follows a decade-long dry period. Precipitation patterns in South America were also influenced by La Nina. Heavy rain in Rio de Janeiro in January triggered the country's worst floods and landslides in Brazil's history. The 2011 combined average temperature across global land and ocean surfaces was the coolest since 2008, but was also among the 15 warmest years on record and above the 1981-2010 average. The global sea surface temperature cooled by 0.1 degrees C from 2010 to 2011, associated with cooling influences of La Nina. Global integrals of upper ocean heat content for 2011 were higher than for all prior years, demonstrating the Earth's dominant role of the oceans in the Earth's energy budget. In the upper atmosphere, tropical stratospheric temperatures were anomalously warm, while polar temperatures were anomalously cold. This led to large springtime stratospheric ozone reductions in polar latitudes in both hemispheres. Ozone concentrations in the Arctic stratosphere during March were the lowest for that period since satellite records began in 1979. An extensive, deep, and persistent ozone hole over the Antarctic in September indicates that the recovery to pre-1980 conditions is proceeding very slowly. Atmospheric carbon dioxide concentrations increased by 2.10 ppm in 2011, and exceeded 390 ppm for the first time since instrumental records began. Other greenhouse gases also continued to rise in concentration and the combined effect now represents a 30% increase in radiative forcing over a 1990 baseline. Most ozone depleting substances continued to fall. The global net ocean carbon dioxide uptake for the 2010 transition period from El Nino to La Nina, the most recent period for which analyzed data are available, was estimated to be 1.30 Pg C yr(-1), almost 12% below the 29-year long-term average. Relative to the long-term trend, global sea level dropped noticeably in mid-2010 and reached a local minimum in 2011. The drop has been linked to the La Nina conditions that prevailed throughout much of 2010-11. Global sea level increased sharply during the second half of 2011. Global tropical cyclone activity during 2011 was well-below average, with a total of 74 storms compared with the 1981-2010 average of 89. Similar to 2010, the North Atlantic was the only basin that experienced above-normal activity. For the first year since the widespread introduction of the Dvorak intensity-estimation method in the 1980s, only three tropical cyclones reached Category 5 intensity level-all in the Northwest Pacific basin. The Arctic continued to warm at about twice the rate compared with lower latitudes. Below-normal summer snowfall, a decreasing trend in surface albedo, and above-average surface and upper air temperatures resulted in a continued pattern of extreme surface melting, and net snow and ice loss on the Greenland ice sheet. Warmer-than-normal temperatures over the Eurasian Arctic in spring resulted in a new record-low June snow cover extent and spring snow cover duration in this region. In the Canadian Arctic, the mass loss from glaciers and ice caps was the greatest since GRACE measurements began in 2002, continuing a negative trend that began in 1987. New record high temperatures occurred at 20 m below the land surface at all permafrost observatories on the North Slope of Alaska, where measurements began in the late 1970s. Arctic sea ice extent in September 2011 was the second-lowest on record, while the extent of old ice (four and five years) reached a new record minimum that was just 19% of normal. On the opposite pole, austral winter and spring temperatures were more than 3 degrees C above normal over much of the Antarctic continent. However, winter temperatures were below normal in the northern Antarctic Peninsula, which continued the downward trend there during the last 15 years. In summer, an all-time record high temperature of -12.3 degrees C was set at the South Pole station on 25 December, exceeding the previous record by more than a full degree. Antarctic sea ice extent anomalies increased steadily through much of the year, from briefly setting a record low in April, to well above average in December. The latter trend reflects the dispersive effects of low pressure on sea ice and the generally cool conditions around the Antarctic perimeter.

Published
2012
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12. Comparing the impacts of 2003 and 2010 heatwaves in NPP over Europe.

Author

Bastos, A., Gouveia, C. M., Trigo, R. M., and Running, S. W.

Subjects
HEAT waves (Meteorology), PRIMARY productivity (Biology), SOCIOECONOMICS, PHOTOSYNTHESIS, METEOROLOGICAL precipitation, COMPARATIVE studies
Abstract

In the last decade, Europe was stricken by two outstanding heatwaves, the 2003 event in Western Europe and the recent 2010 episode over Russia. Both extreme events were characterised by record-breaking temperatures, and widespread socio-economic impacts, including significant increments on mortality rates, decreases in crop production and in hydroelectric production. This work aims to assess the influence of both mega-heatwaves on vegetation carbon uptake, using yearly Net Primary Production (NPP) and monthly Net Photosynthesis (PsN) data derived from satellite imagery obtained from MODIS for the period 2000-2011. In 2010, markedly low productivity was observed over a very large area in Russia, at monthly, seasonal and yearly scales, falling below 50% of average NPP. This decrease in NPP in 2010 was far more intense than the one affecting Western Europe in 2003, which corresponded to 20-30% of the average, and affected a much larger extent. Total NPP anomalies reached -19 TgC for the selected regions in France during 2003 and -94 TgC for western Russia in 2010, which corresponds almost to the magnitude of total NPP anomaly during 2010 for the whole Europe. Overall, the widespread negative PsN anomalies in both regions match the patterns of very high temperature values preceded by a long period of below-average precipitation, leading to strong soil moisture deficits, stressing the role of soil-atmosphere coupling. In the case of 2003 heatwave, results indicate a strong influence of moisture deficits coupled with high temperatures in the response of vegetation, while for the 2010 event very high temperatures appear to be the main driver of very low NPP. [ABSTRACT FROM AUTHOR]

Published
2013
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13. State of the climate in 2011:Special supplement to the Bulletin of the American Meteorological Society

Author

Arndt, D. S., Blunden, J., Willett, K. M., Dolman, A. J., Hall, B. D., Thorne, P. W., Gregg, M. C., Newlin, M. L., Xue, Y., Hu, Z., Kumar, A., Banzon, V., Smith, T. M., Rayner, N. A., Jeffries, M. O., Richter-Menge, J., Overland, J., Bhatt, U., Key, J., Liu, Y., Walsh, J., Wang, M., Fogt, R. L., Scambos, T. A., Wovrosh, A. J., Barreira, S., Sanchez-Lugo, A., Renwick, J. A., Thiaw, W. M., Weaver, S. J., Whitewood, R., Phillips, D., Achberger, C., Ackerman, S. A., Ahmed, Farid H., Albanil-Encarnacion, Adelina, Alfaro, E. J., Alves, L. M., Allan, Rob, Amador, Jorge A., Ambenje, Peter, Antoine, M. D., Antonov, John, Arevalo, Juan, Arndt, Derek S., Ashik, I., Atheru, Zachary, Baccini, Alessandro, Baez, Julian, Banzon, Viva, Baringer, Molly O., Barreira, Sandra, Barriopedro, D. E., Bates, J. J., Becker, Andreas, Behrenfeld, Michael J., Bell, Gerald D., Benedetti, Angela, Bernhard, Germar, Berrisford, Paul, Berry, David I., Beszczynska-Moeller, A., Bhatt, U. S., Bidegain, Mario, Bieniek, P., Birkett, Charon, Bissolli, Peter, Blake, Eric S., Blunden, Jessica, Boudet-Rouco, Dagne, Box, Jason E., Boyer, Tim, Braathen, Geir O., Brackenridge, G. Robert, Brohan, Philip, Bromwich, David H., Brown, Laura, Brown, R., Bruhwiler, Lori, Bulygina, O. N., Burrows, John, Calderon, Blanca, Camargo, Suzana J., Cappellen, John, Carmack, E., Carrasco, Gualberto, Chambers, Don P., Christiansen, Hanne H., Christy, John, Chung, D., Ciais, P., Coehlo, Caio A. S., Colwell, Steve, Comiso, J., Cretaux, Jean-Francois, Crouch, Jake, Cunningham, Stuart A., Jeu, Richard A. M., Demircan, M., Derksen, C., Diamond, Howard J., Dlugokencky, Ed J., Dohan, Kathleen, Dolman, A. Johannes, Dorigo, Wouter A., Drozdov, D. S., Duguay, Claude, Dutton, Ellsworth, Dutton, Geoff S., Elkins, James W., Epstein, H. E., Famiglietti, James S., Fanton D Andon, Odile Hembise, Feely, Richard A., Fekete, Balazs M., Fenimore, Chris, Fernandez-Prieto, D., Fields, Erik, Fioletov, Vitali, Fogt, Ryan L., Folland, Chris, Foster, Michael J., Frajka-Williams, Eleanor, Franz, Bryan A., Frey, Karen, Frith, Stacey H., Frolov, I., Frost, G. V., Ganter, Catherine, Garzoli, Silvia, Gitau, Wilson, Gleason, Karin L., Gobron, Nadine, Goldenberg, Stanley B., Goni, Gustavo, Gonzalez-Garcia, Idelmis, Gonzalez-Rodriguez, Nivaldo, Good, Simon A., Goryl, Philippe, Gottschalck, Jonathan, Gouveia, C. M., Gregg, Margarita C., Griffiths, Georgina M., Grigoryan, Valentina, Grooss, Jens-Uwe, Guard, Chip, Guglielmin, Mauro, Hall, Bradley D., Halpert, Michael S., Heidinger, Andrew K., Heikkila, Anu, Heim, Jr, Hennon, Paula A., Hidalgo, Hugo G., Hilburn, Kyle, Ho, Shu-Peng, Hobbs, Will R., Holgate, Simon, Hook, Simon J., Hovsepyan, Anahit, Hu, Zeng-Zhen, Hugony, Sebastien, Hurst, Dale F., Ingvaldsen, R., Itoh, M., Jaimes, Ena, Jeffries, Martin, Johns, William E., Johnsen, Bjorn, Johnson, Bryan, Johnson, Gregory C., Jones, L. T., Jumaux, Guillaume, Kabidi, Khadija, Kaiser, Johannes W., Kang, Kyun-Kuk, Kanzow, Torsten O., Kao, Hsun-Ying, Keller, Linda M., Kendon, Mike, Kennedy, John J., Kervankiran, Sefer, Khatiwala, Samar, Kholodov, A. L., Khoshkam, M., Kikuchi, T., Kimberlain, Todd B., King, Darren, Knaff, John A., Korshunova, Natalia N., Koskela, Tapani, Kratz, David P., Krishfield, R., Kruger, Andries, Kruk, Michael C., Kumar, Arun, Lagerloef, Gary, Lakkala, Kaisa, Lammers, Richard B., Lander, Mark A., Landsea, Chris W., Lankhorst, Matthias, Lapinel-Pedroso, Braulio, Lazzara, Matthew A., Leduc, Sharon, Lefale, Penehuro, Leon, Gloria, Leon-Lee, Antonia, Leuliette, Eric, Levitus, Syndney, L Heureux, Michelle, Lin, I. I., Liu, Hongxing, Liu, Yanju, Liu, Yi, Lobato-Sanchez, Rene, Locarnini, Ricardo, Loeb, Norman G., Loeng, H., Long, Craig S., Lorrey, Andrew M., Lumpkin, Rick, Myhre, Cathrine Lund, Luo, Jing-Jia, Lyman, John M., Maccallum, Stuart, Macdonald, Alison M., Maddux, Brent C., Manney, Gloria, Marchenko, S. S., Marengo A, Jose, Maritorena, Stephane, Marotzke, Jochem, Marra, John J., Martinez-Sanchez, Odayls, Maslanik, J., Massom, Robert A., Mathis, Jeremy T., Mcbride, Charlotte, Mcclain, Charles R., Mcgrath, Daniel, Mcgree, Simon, Mclaughlin, F., Mcvicar, Tim R., Mears, Carl, Meier, W., Meinen, Christopher S., Menendez, Melisa, Merchant, Chris, Merrifield, Mark A., Miller, Laury, Mitchum, Gary T., Montzka, Stephen A., Moore, Sue, Mora, Natalie P., Morcrette, Jean-Jacques, Mote, Thomas, Muhle, Jens, Mullan, A. Brett, Muller, Rolf, Myhre, Cathrine, Nash, Eric R., Nerem, R. Steven, Newlin, Michele L., Newman, Paul A., Ngari, Arona, Nishino, S., Njau, Lenoard N., Noetzli, Jeannette, Oberman, N. G., Obregon, Andre, Ogallo, Laban, and Oludhe, Christopher

14. Erythropoietin production by distal nephron in normal and familial amyloidotic adult human kidneys.

Author

Beirão I, Moreira L, Barandela T, Lobato L, Silva P, Gouveia CM, Carneiro F, Fonseca I, Porto G, and Pinho E Costa P

Subjects
Adult, Amyloidosis, Familial pathology, Anemia pathology, Biopsy, Cadaver, Case-Control Studies, Female, Humans, Immunohistochemistry, In Situ Hybridization, Kidney Diseases pathology, Male, Middle Aged, Mutation, Nephrons pathology, Polymerase Chain Reaction, Portugal, Prealbumin genetics, Amyloidosis, Familial genetics, Anemia genetics, Erythropoietin genetics, Kidney Diseases genetics, Nephrons chemistry, RNA, Messenger analysis
Abstract

Background/aim: the kidney is the major site of erythropoietin production. Many efforts have been made to identify renal erythropoietin-producing cells. Previous studies showed conflicting results, but the predominant localization reported was the peritubular interstitial and tubular epithelial cells. This study was conducted to identify the erythropoietin-producing cells in renal biopsies from 10 cadaveric donors and 45 patients with familial amyloidosis ATTR V30M, thirteen of them with anemia. Familial amyloidosis Type I (FAP-I) is a genetic disorder caused by a transthyretin (TTR) protein variant presenting a single amino acid substitution of methionine for valine at position 30 of the polypeptide chain (TTR V30M). Anemia in FAP-I is associated with inappropriately low serum erythropoietin levels., Methods: erythropoietin expression was detected by in situ hybridization (ISH) and confirmed by laser capture microdissection followed by PCR. Renal segments were identified by immunohistochemistry., Results: erythropoietin was mainly expressed by epithelial distal tubular cells and collecting tubules and additionally, in a few biopsies, by glomerular cells. A similar expression pattern was observed in donors and FAP-I patients. No increased mRNA erythropoietin expression was found in anemic patients, all of them presenting only a slight expression in medulla and cortex., Conclusions: these results suggest the distal nephron as the major site of erythropoietin production, and support the notion that an inappropriate erythropoietin production is the cause of anemia in familial amyloidosis ATTR V30M.

Published
2010
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