27 results on '"Roquet, Hervé"'
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2. Satellites for Atmospheric Sciences 1
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Phulpin, Thierry, primary, Renaut, Didier, additional, Roquet, Hervé, additional, and Camy‐Peyret, Claude, additional
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- 2023
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3. Ocean remote sensing from meteorological satellites at OSI SAF
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Membrive, Olivier, primary, Hernandez, Cécile, additional, Roquet, Hervé, additional, Saux-Picart, Stéphane, additional, Eastwood, Steinar, additional, Stoffelen, Ad, additional, Verhoef, Anton, additional, Howe, Eva, additional, and Piolle, Jean-François, additional
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- 2023
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4. Six years of OSI-SAF METOP-A AVHRR sea surface temperature
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Marsouin, Anne, Le Borgne, Pierre, Legendre, Gérard, Péré, Sonia, and Roquet, Hervé
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- 2015
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5. Response of the sea surface temperature to heatwaves during the France 2022 meteorological summer
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Guinaldo, Thibault, primary, Saux Picart, Stéphane, additional, and Roquet, Hervé, additional
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- 2022
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6. Assessing the impact of brightness temperature simulation adjustment conditions in correcting Metop-A SST over the Mediterranean Sea
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Tomažić, Igor, Le Borgne, Pierre, and Roquet, Hervé
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- 2014
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7. Night time detection of Saharan dust using infrared window channels: Application to NPP/VIIRS
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Le Borgne, Pierre, Péré, Sonia, and Roquet, Hervé
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- 2013
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8. Response of the sea surface temperature to heatwaves during the France 2022 meteorological summer.
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Guinaldo, Thibault, Voldoire, Aurore, Waldman, Robin, Saux Picart, Stéphane, and Roquet, Hervé
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HEAT waves (Meteorology) ,OCEAN temperature ,EXTREME weather ,CLOUDINESS ,ATMOSPHERIC temperature ,MARINE heatwaves - Abstract
The summer of 2022 was memorable and record-breaking, ranking as the second hottest summer in France since 1900, with a seasonal surface air temperature average of 22.7 ∘ C. In particular, France experienced multiple record-breaking heatwaves during the meteorological summer. As the main heat reservoir of the Earth system, the oceans are at the forefront of events of this magnitude which enhance oceanic disturbances such as marine heatwaves (MHWs). In this study, we investigate the sea surface temperature (SST) of French maritime basins using remotely sensed measurements to track the response of surface waters to the atmospheric heatwaves and determine the intensity of such feedback. Beyond the direct relationship between SSTs and surface air temperatures, we explore the leading atmospheric parameters affecting the upper-layer ocean heat budget. Despite some gaps in data availability, the SSTs measured during the meteorological summer of 2022 were record-breaking, the mean SST was between 1.3 and 2.6 ∘ C above the long-term average (1982–2011), and the studied areas experienced between 4 and 22 d where the basin-averaged SSTs exceeded the maximum recorded basin-averaged SSTs from 1982 to 2011. We found a significant SST response during heatwave periods with maximum temperatures measured locally at 30.8 ∘ C in the north-western Mediterranean Sea. Our results show that in August 2022 (31 July to 13 August), France experienced above-average surface solar radiation correlated with below-average total cloud cover and negative wind speed anomalies. Our attribution analysis based on a simplified mixed-layer heat budget highlights the critical role of ocean–atmosphere fluxes in initiating abnormally warm SSTs, while ocean mixing plays a crucial role in the cessation of such periods. We find that the 2 m temperatures and specific humidity that are consistently linked to the advection of warm and moist air masses are key variables across all the studied regions. Our results reveal that the influence of wind on heatwaves is variable and of secondary importance. Moreover, we observe that the incident solar radiation has a significant effect only on the Bay of Biscay (BB) and the English Channel (EC) areas. Our study findings are consistent with previous research and demonstrate the vulnerability of the Mediterranean Sea to the increasing frequency of extreme weather events resulting from climate change. Furthermore, our investigation reveals that the recurring heatwave episodes during the summer of 2022 had an undeniable impact on all the surveyed maritime areas in France. Our study therefore provides valuable insights into the complex mechanisms underlying the ocean–atmosphere interaction and demonstrates the need for an efficient and sustainable operational system combining polar-orbiting and geostationary satellites to monitor the alterations that threaten the oceans in the context of climate change. [ABSTRACT FROM AUTHOR]
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- 2023
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9. DATA ASSEMBLY AND PROCESSING FOR Operational Oceanography : 10 YEARS OF ACHIEVEMENTS
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LE TRAON, PIERRE-YVES, LARNICOL, GILLES, GUINEHUT, STÉPHANIE, POULIQUEN, SYLVIE, BENTAMY, ABDERRAHIM, ROEMMICH, DEAN, DONLON, CRAIG, ROQUET, HERVÉ, JACOBS, GREGG, GRIFFIN, DAVID, BONJEAN, FABRICE, HOEPFFNER, NICOLAS, and BREIVIK, LARS-ANDERS
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- 2009
10. IAGOS Research Infrastructure for Global-Scale Atmosphere Monitoring by Instrumented Passenger Aircraft
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Petzold, Andreas, primary, Thouret, Valerie, additional, Gerbig, Christoph, additional, Zahn, Andreas, additional, Gallagher, Martin, additional, Clark, Hannah, additional, Hermann, Markus, additional, Schneider, Johannes, additional, Ziereis, Helmut, additional, Roquet, Hervé, additional, Nédélec, Philippe, additional, Bundke, Ulrich, additional, Boulanger, Damien, additional, Rohs, Susanne, additional, Smit, Herman G.J., additional, Boenisch, Harald, additional, Lloyd, Gary, additional, Flaud, Jean-Marie, additional, and Wahner, Andreas, additional
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- 2021
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11. Satellite Estimates of Wind Speed and Latent Heat Flux over the Global Oceans
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Bentamy, Abderrahim, Katsaros, Kristina B., Mestas-Nuñez, Alberto M., Drennan, William M., Forde, Evan B., and Roquet, Hervé
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- 2003
12. Response of the sea surface temperature to heatwaves during the France 2022 meteorological summer.
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Guinaldo, Thibault, Picart, Stéphane Saux, and Roquet, Hervé
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OCEAN temperature ,MARINE heatwaves ,HEAT waves (Meteorology) ,CLOUDINESS ,ATMOSPHERIC temperature ,GEOSTATIONARY satellites - Abstract
Summer 2022 was memorable and record-breaking, ranking as the second hottest summer in France since the beginning of the measurements, with a seasonal average of 22.7°C. In particular, France experienced multiple record-breaking heat waves. As the main heat sink of the Earth system, the oceans are at the forefront of events of this magnitude, which enhance oceanic disturbances such as marine heat waves. In this study, we investigated French maritime basins sea surface temperature to determine the ability of satellite measurements to track the response of surface waters to these events. Despite some gaps in data availability, we showed that during the meteorological summer of 2022, the mean sea surface temperature was between 1.3°C and 2.6°C above the long-term average (1982-2011). A focus on the heat wave from 31 July to 13 August was carried out and showed a significant sea surface temperature response to the heat wave with maximum temperatures measured locally at 30.8°C in the North-western Mediterranean sea. Beyond the response to intense surface air temperatures, the contribution of other atmospheric variables was not negligible. Thus, we have shown that France experienced an August with above-average surface solar radiation correlated with below-average total cloud cover and anomalies in the distribution and intensity of wind speeds. The response to these different contributions depends on the hydrodynamic conditions, in particular the tides that ensure turbulent mixing. This is why the response is more pronounced in the Mediterranean, where the absence of dynamic mixing (below-average surface wind speed) is associated with an absence of tides. Our results were in line with previous studies and we confirmed here that even if the Mediterranean is a climate change hotspot, all maritime front are affected by a warming of surface waters. Our study therefore demonstrated the need for an efficient and sustainable operational system combining polar orbiting and geostationary satellites to prevent the alterations that threaten the oceans in the context of climate change. [ABSTRACT FROM AUTHOR]
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- 2022
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13. A Simulated Future Atmospheric Observation Database Including ATOVS, ASCAT, and DWL
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Becker, Bernd Dieter, Roquet, Hervé, and Stoffelen, Ad
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- 1996
14. Expected Performances of the Copernicus Imaging Microwave Radiometer (CIMR) for an All-Weather and High Spatial Resolution Estimation of Ocean and Sea Ice Parameters
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Kilic, Lise, Prigent, Catherine, Aires, Filipe, Boutin, Jacqueline, Heygster, Georg, Tonboe, Rasmus, Roquet, Hervé, Jimenez, Carlos, Donlon, Craig, Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA (UMR_8112)), 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 de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Estellus, 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), Institute of Environmental Physics [Bremen] (IUP), University of Bremen, Danish Meteorological Institute (DMI), Météo-France Direction Interrégionale Sud-Est (DIRSE), Météo-France, European Space Research and Technology Centre (ESTEC), Agence Spatiale Européenne = European Space Agency (ESA), Sorbonne Université (SU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Estellus, Paris, France, 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)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-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)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Institut de Recherche pour le Développement (IRD)-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU), Météo France, and European Space Agency (ESA)
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[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] - Abstract
Climate change resulting in ocean warming, sea level rise, and sea ice melting has consequences for the global economy, navigation, and security. The Copernicus Imaging Microwave Radiometer (CIMR) mission is a high priority candidate mission within the European Copernicus Expansion program. CIMR is designed to observe the ocean and sea ice and more particularly the Arctic environment. Sea surface temperature (SST), ocean wind speed, sea surface salinity (SSS), and sea ice concentration (SIC) are fundamental variables for understanding, monitoring, and predicting the state of the ocean and sea ice. CIMR is a conically scanning microwave radiometer imager that includes channels at 1.4, 6.9, 10.65, 18.7, and 36.5 GHz, in a Sun-synchronous polar orbit, to provide SST, ocean wind speed, SSS, and SIC with an increased accuracy and/or spatial resolution. Here we analyze the performances of the CIMR mission in terms of theoretical retrieval precision and spatial resolution on the SST, SSS, and SIC products. A careful information content analysis is conducted. The CIMR performances are compared with the Advanced Microwave Scanning Radiometer 2 and the Soil Moisture Active Passive current missions. Maps of the retrieval precision based on realistic conditions are computed. CIMR will provide SST, SSS, and SIC with a spatial resolution of 15, 55, and 5 km and a precision of 0.2 K, 0.3 psu, and 5%, respectively. The SST and SIC will be retrieved at better than 30 km from the coast. CIMR is currently in preparatory phase, and if selected, it is for a launch in the 2025+ time frame. Plain Language Summary Climate change resulting in ocean warming, sea level rise, and sea ice melting has consequences for the global economy, navigation, and security. The Copernicus Imaging Microwave Radiometer mission is a high priority candidate satellite mission within the European Copernicus Expansion program. It is designed to observe the ocean and sea ice and more particularly the Arctic environment. Sea surface temperature, ocean wind speed, sea surface salinity, and sea ice concentration are fundamental variables for understanding, monitoring, and predicting the state of the ocean and sea ice. Here we analyze the performances of this new satellite mission in terms of precision and spatial resolution on the sea surface temperature, sea surface salinity, and sea ice concentration and compare it with current missions. The Copernicus Imaging Microwave Radiometer will provide sea surface temperature, sea surface salinity, and sea ice concentration with a spatial resolution of 15, 55, and 5 km and a precision of 0.2 K, 0.3 psu, and 5%, respectively. This satellite mission is currently in preparatory phase, and if selected, it is for a launch in the 2025 time frame.
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- 2018
15. Evaluation of operational ECMWF surface heat fluxes: impact of parameterisation changes during 1986–1995
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Siefridt, Laure, Barnier, Bernard, Béranger, Karine, and Roquet, Hervé
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- 1999
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16. The Copernicus Marine Environment Monitoring Service Ocean State Report
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von Schuckmann, Karina, Le Traon, Pierre-Yves, Alvarez-Fanjul, Enrique, Axell, Lars, Balmaseda, Magdalena, Breivik, Lars-Anders, Brewin, Robert J. W., Bricaud, Clement, Drevillon, Marie, Drillet, Yann, Dubois, Clotilde, Embury, Owen, Etienne, Hélène, Sotillo, Marcos García, Garric, Gilles, Gasparin, Florent, Gutknecht, Elodie, Guinehut, Stéphanie, Hernandez, Fabrice, Juza,, Melanie, Karlson, Bengt, Korres, Gerasimos, Legeais, Jean-François, Levier, Bruno, Lien, Vidar S., Morrow, Rosemary, Notarstefano, Giulio, Parent, Laurent, Pascual, Álvaro, PérezGómez, Begoña, Perruche, Coralie, Pinardi, Nadia, Pisano, Andrea, Poulain, Pierre-Marie, Pujol, Isabelle M., Raj, Roshin P., Raudsepp, Urmas, Roquet, Hervé, Samuelsen, Annette, Sathyendranath, Shubha, She, Jun, Simoncelli, Simona, Cosimo, Solidoro, Tinker, Jonathan, Tintoré, Joaquín, Viktorsson, Lena, Ablain, Michael, Almroth-Rosell, Elin, Bonaduce, Antonio, Clementi, Emanuela, Cossarini, Gianpiero, Dagneaux, Quentin, Desportes, Charles, Dye, Stephen, Fratianni, Claudia, Good, Simon, Greiner, Eric, Gourrion, Jerome, Hamon, Mathieu, Holt, Jason, Hyder, Pat, Kennedy, John, ManzanoMuñoz, Fernando, Melet, Angélique, Meyssignac, Benoit, Mulet, Sandrine, Buongiorno Nardelli, Bruno, O´Dea, Enda, Olason, Einar, Paulmier, Aurélien, Pérez-González, Irene, Reid, Rebecca, Racault, Marie-Fanny, Raitsos, Dionysios E., Ramos,, Antonio, Sykes, Peter, Szekely, Tanguy, Verbrugge, Nathalie, von Schuckmann, Karina, Le Traon, Pierre-Yves, Alvarez-Fanjul, Enrique, Axell, Lars, Balmaseda, Magdalena, Breivik, Lars-Anders, Brewin, Robert J. W., Bricaud, Clement, Drevillon, Marie, Drillet, Yann, Dubois, Clotilde, Embury, Owen, Etienne, Hélène, Sotillo, Marcos García, Garric, Gilles, Gasparin, Florent, Gutknecht, Elodie, Guinehut, Stéphanie, Hernandez, Fabrice, Juza,, Melanie, Karlson, Bengt, Korres, Gerasimos, Legeais, Jean-François, Levier, Bruno, Lien, Vidar S., Morrow, Rosemary, Notarstefano, Giulio, Parent, Laurent, Pascual, Álvaro, PérezGómez, Begoña, Perruche, Coralie, Pinardi, Nadia, Pisano, Andrea, Poulain, Pierre-Marie, Pujol, Isabelle M., Raj, Roshin P., Raudsepp, Urmas, Roquet, Hervé, Samuelsen, Annette, Sathyendranath, Shubha, She, Jun, Simoncelli, Simona, Cosimo, Solidoro, Tinker, Jonathan, Tintoré, Joaquín, Viktorsson, Lena, Ablain, Michael, Almroth-Rosell, Elin, Bonaduce, Antonio, Clementi, Emanuela, Cossarini, Gianpiero, Dagneaux, Quentin, Desportes, Charles, Dye, Stephen, Fratianni, Claudia, Good, Simon, Greiner, Eric, Gourrion, Jerome, Hamon, Mathieu, Holt, Jason, Hyder, Pat, Kennedy, John, ManzanoMuñoz, Fernando, Melet, Angélique, Meyssignac, Benoit, Mulet, Sandrine, Buongiorno Nardelli, Bruno, O´Dea, Enda, Olason, Einar, Paulmier, Aurélien, Pérez-González, Irene, Reid, Rebecca, Racault, Marie-Fanny, Raitsos, Dionysios E., Ramos,, Antonio, Sykes, Peter, Szekely, Tanguy, and Verbrugge, Nathalie
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- 2017
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17. Observations depuis l'orbite géostationnaire avec Meteosat troisième génération (MTG)
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Stuhlmann, Rolf, primary, Holmlund, Kenneth, additional, Schmetz, Johannes, additional, Roquet, Hervé, additional, Tjemkes, Stephen, additional, Grandell, Jochen, additional, Pohjola, Heikki, additional, Lekouara, Mounir, additional, Munro, Rosemary, additional, Fowler, Gary, additional, Schmid, Alexander, additional, and Aminou, Donny, additional
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- 2017
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18. The Copernicus Marine Environment Monitoring Service Ocean State Report
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von Schuckmann, Karina, primary, Le Traon, Pierre-Yves, additional, Alvarez-Fanjul, Enrique, additional, Axell, Lars, additional, Balmaseda, Magdalena, additional, Breivik, Lars-Anders, additional, Brewin, Robert J. W., additional, Bricaud, Clement, additional, Drevillon, Marie, additional, Drillet, Yann, additional, Dubois, Clotilde, additional, Embury, Owen, additional, Etienne, Hélène, additional, Sotillo, Marcos García, additional, Garric, Gilles, additional, Gasparin, Florent, additional, Gutknecht, Elodie, additional, Guinehut, Stéphanie, additional, Hernandez, Fabrice, additional, Juza, Melanie, additional, Karlson, Bengt, additional, Korres, Gerasimos, additional, Legeais, Jean-François, additional, Levier, Bruno, additional, Lien, Vidar S., additional, Morrow, Rosemary, additional, Notarstefano, Giulio, additional, Parent, Laurent, additional, Pascual, Álvaro, additional, Pérez-Gómez, Begoña, additional, Perruche, Coralie, additional, Pinardi, Nadia, additional, Pisano, Andrea, additional, Poulain, Pierre-Marie, additional, Pujol, Isabelle M., additional, Raj, Roshin P., additional, Raudsepp, Urmas, additional, Roquet, Hervé, additional, Samuelsen, Annette, additional, Sathyendranath, Shubha, additional, She, Jun, additional, Simoncelli, Simona, additional, Solidoro, Cosimo, additional, Tinker, Jonathan, additional, Tintoré, Joaquín, additional, Viktorsson, Lena, additional, Ablain, Michael, additional, Almroth-Rosell, Elin, additional, Bonaduce, Antonio, additional, Clementi, Emanuela, additional, Cossarini, Gianpiero, additional, Dagneaux, Quentin, additional, Desportes, Charles, additional, Dye, Stephen, additional, Fratianni, Claudia, additional, Good, Simon, additional, Greiner, Eric, additional, Gourrion, Jerome, additional, Hamon, Mathieu, additional, Holt, Jason, additional, Hyder, Pat, additional, Kennedy, John, additional, Manzano-Muñoz, Fernando, additional, Melet, Angélique, additional, Meyssignac, Benoit, additional, Mulet, Sandrine, additional, Buongiorno Nardelli, Bruno, additional, O’Dea, Enda, additional, Olason, Einar, additional, Paulmier, Aurélien, additional, Pérez-González, Irene, additional, Reid, Rebecca, additional, Racault, Marie-Fanny, additional, Raitsos, Dionysios E., additional, Ramos, Antonio, additional, Sykes, Peter, additional, Szekely, Tanguy, additional, and Verbrugge, Nathalie, additional
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- 2016
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19. Economics in the aftermath of the global financial crisis: a text mining approach
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Roquet, Hervé, Zarin-Nejadan, Milad, Stoffe, Kilian, Roquet, Hervé, Zarin-Nejadan, Milad, and Stoffe, Kilian
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En utilisant plusieurs techniques de text mining sur 28’974 résumés d’articles scientifiques provenant de 16 revues parmi les plus influentes de la science économique et du Bureau National de Recherche Économique (NBER), j’explore l'état de la science économique dominante au sortir de la crise financière et économique de 2007-2009. Au travers des variations de la fréquence relative des termes économiques les plus utilisés, je montre que le noyau de la science économique n'a pas changé, sauf pour l'augmentation faible, mais significative, du nombre d’articles concernant des sujets liés à la finance et au risque. Je présente des résultats montrant que des changements secondaires se sont produits à la périphérie de l'économie dominante, entre autres : - la baisse de l'importance du Japon et la Grande-Bretagne ; - l'importance grandissante de la Chine ; - la présence croissante d’articles traitant de thématiques liées à l'énergie, au pétrole et au changement climatique ; - l’augmentation de l’utilisation de nouvelles méthodes telles que la modélisation d’équilibre général dynamique stochastique ou la régression discontinue. Par l’analyse des principaux clusters de la science économique, je présente ensuite des données montrant une science ayant une forte cohésion paradigmatique fondée sur sa méthodologie. J’analyse l’absence de changements majeurs dans l'économie dominante suite à la crise en me concentrant sur sa forte dépendance à des méthodes mathématiques déductivistes., Using several text mining techniques on 28,974 abstracts coming from 16 of the most influential academic journals in economics and the National Bureau of Economic Research (NBER), I explore the state of mainstream economics in the aftermath of the financial and economic 2007-2009 crisis. Exploring the variation in the relative term frequency of the most used economic terms, I find that the core of the economic discipline did not change except for the small but significant increase in focus on finance and risk related topics. I present evidence showing that secondary changes occurring at the periphery of mainstream economics are visible. Among others : the drop of importance of Japan and Britain, the increased importance of China, the increased focus on energy, oil and climate change topics, and the rise in the usage of new methods like regression discontinuity or Dynamic Stochastic General Equilibrium (DSGE) modeling. Using cluster analysis, I find evidences depicting economics as a monolithic science with a strong paradigmatic cohesion rooted in its methodology. I discuss the absence of major changes in mainstream economics by focusing on its strong reliance on mathematical deductivist methods.
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- 2015
20. OSI-SAF operational NPP/VIIRS sea surface temperature chain
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Le Borgne, Pierre, primary, Legendre, Gérard, additional, Marsouin, Anne, additional, Péré, Sonia, additional, and Roquet, Hervé, additional
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- 2013
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21. DATA ASSEMBLY AND PROCESSING FOR OPERATIONAL OCEANOGRAPHY: TEN YEARS OF ACHIEVEMENTS
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Le Traon, Pierre-Yves, primary, Larnicol, Gilles, additional, Guinehut, Stéphanie, additional, Pouliquen, Sylvie, additional, Bentamy, Abderrahim, additional, Roemmich, Dean, additional, Donlon, Craig, additional, Roquet, Hervé, additional, Jacobs, Gregg, additional, Griffin, David, additional, Bonjean, Fabrice, additional, Hoeppfner, Nicolas, additional, and Breivik, Lars-Anders, additional
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- 2009
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22. A Simulated Future Atmospheric Observation Database Including ATOVS, ASCAT, and DWL
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Dieter Becker, Bernd, primary, Roquet, Hervé, additional, and Stoffelen, Ad, additional
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- 1996
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23. OSI-SAF operational NPP/VIIRS sea surface temperature chain
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Hou, Weilin W., Arnone, Robert A., Le Borgne, Pierre, Legendre, Gérard, Marsouin, Anne, Péré, Sonia, and Roquet, Hervé
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- 2013
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24. Economics in the aftermath of the global financial crisis: a text mining approach
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Roquet, Hervé and Roquet, Hervé
- Abstract
En utilisant plusieurs techniques de text mining sur 28’974 résumés d’articles scientifiques provenant de 16 revues parmi les plus influentes de la science économique et du Bureau National de Recherche Économique (NBER), j’explore l'état de la science économique dominante au sortir de la crise financière et économique de 2007-2009. Au travers des variations de la fréquence relative des termes économiques les plus utilisés, je montre que le noyau de la science économique n'a pas changé, sauf pour l'augmentation faible, mais significative, du nombre d’articles concernant des sujets liés à la finance et au risque. Je présente des résultats montrant que des changements secondaires se sont produits à la périphérie de l'économie dominante, entre autres : - la baisse de l'importance du Japon et la Grande-Bretagne ; - l'importance grandissante de la Chine ; - la présence croissante d’articles traitant de thématiques liées à l'énergie, au pétrole et au changement climatique ; - l’augmentation de l’utilisation de nouvelles méthodes telles que la modélisation d’équilibre général dynamique stochastique ou la régression discontinue. Par l’analyse des principaux clusters de la science économique, je présente ensuite des données montrant une science ayant une forte cohésion paradigmatique fondée sur sa méthodologie. J’analyse l’absence de changements majeurs dans l'économie dominante suite à la crise en me concentrant sur sa forte dépendance à des méthodes mathématiques déductivistes., Using several text mining techniques on 28,974 abstracts coming from 16 of the most influential academic journals in economics and the National Bureau of Economic Research (NBER), I explore the state of mainstream economics in the aftermath of the financial and economic 2007-2009 crisis. Exploring the variation in the relative term frequency of the most used economic terms, I find that the core of the economic discipline did not change except for the small but significant increase in focus on finance and risk related topics. I present evidence showing that secondary changes occurring at the periphery of mainstream economics are visible. Among others : the drop of importance of Japan and Britain, the increased importance of China, the increased focus on energy, oil and climate change topics, and the rise in the usage of new methods like regression discontinuity or Dynamic Stochastic General Equilibrium (DSGE) modeling. Using cluster analysis, I find evidences depicting economics as a monolithic science with a strong paradigmatic cohesion rooted in its methodology. I discuss the absence of major changes in mainstream economics by focusing on its strong reliance on mathematical deductivist methods.
25. Economics in the aftermath of the global financial crisis: a text mining approach
- Author
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Roquet, Hervé and Roquet, Hervé
- Abstract
En utilisant plusieurs techniques de text mining sur 28’974 résumés d’articles scientifiques provenant de 16 revues parmi les plus influentes de la science économique et du Bureau National de Recherche Économique (NBER), j’explore l'état de la science économique dominante au sortir de la crise financière et économique de 2007-2009. Au travers des variations de la fréquence relative des termes économiques les plus utilisés, je montre que le noyau de la science économique n'a pas changé, sauf pour l'augmentation faible, mais significative, du nombre d’articles concernant des sujets liés à la finance et au risque. Je présente des résultats montrant que des changements secondaires se sont produits à la périphérie de l'économie dominante, entre autres : - la baisse de l'importance du Japon et la Grande-Bretagne ; - l'importance grandissante de la Chine ; - la présence croissante d’articles traitant de thématiques liées à l'énergie, au pétrole et au changement climatique ; - l’augmentation de l’utilisation de nouvelles méthodes telles que la modélisation d’équilibre général dynamique stochastique ou la régression discontinue. Par l’analyse des principaux clusters de la science économique, je présente ensuite des données montrant une science ayant une forte cohésion paradigmatique fondée sur sa méthodologie. J’analyse l’absence de changements majeurs dans l'économie dominante suite à la crise en me concentrant sur sa forte dépendance à des méthodes mathématiques déductivistes., Using several text mining techniques on 28,974 abstracts coming from 16 of the most influential academic journals in economics and the National Bureau of Economic Research (NBER), I explore the state of mainstream economics in the aftermath of the financial and economic 2007-2009 crisis. Exploring the variation in the relative term frequency of the most used economic terms, I find that the core of the economic discipline did not change except for the small but significant increase in focus on finance and risk related topics. I present evidence showing that secondary changes occurring at the periphery of mainstream economics are visible. Among others : the drop of importance of Japan and Britain, the increased importance of China, the increased focus on energy, oil and climate change topics, and the rise in the usage of new methods like regression discontinuity or Dynamic Stochastic General Equilibrium (DSGE) modeling. Using cluster analysis, I find evidences depicting economics as a monolithic science with a strong paradigmatic cohesion rooted in its methodology. I discuss the absence of major changes in mainstream economics by focusing on its strong reliance on mathematical deductivist methods.
26. Livre Blanc sur les infrastructures françaises de recherche du domaine des sciences du système Terre et de l'environnement / Vision stratégique d'AllEnvi 2020 - 2030
- Author
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Mahé, Sylvain, Marlin, Christelle, Mahé, Sylvain, Marlin, Christelle, Aumont, Gilles, Carbonnière, Aurélien, Chappellaz, Jérôme, Compère, Chantal, Galle, Sylvie, Gérin-Laslier, Maryvonne, Grevesse, Cathy, Giraud, Michel, Hamelin, Bruno, Jamet, Olivier, Joly, Dominique, Lagadeuc, Yvan, Moulin, Valérie, Pignal, Marc, Robida, François, and Roquet, Hervé
- Subjects
AllEnvi ,Sciences ,Terre ,Infrastructures ,Livre blanc ,Environnement - Abstract
Les infrastructures de recherche sont des outils à la pointe des connaissances scientifiques et technologiques essentiels pour conduire les recherches liées aux grands enjeux du XXIème siècle sur lesquels l’Alliance nationale de recherche pour l’environnement (AllEnvi) se positionne. Maintenir à un haut niveau ces outils, les ancrer dans le paysage national et européen, en mutualiser certains ou porter de nouvelles candidatures pour répondre aux enjeux de recherche dans le domaine des sciences du système Terre et de l’environnement restent un objectif ambitieux et collectif. Les membres d’AllEnvi se mobilisent avec l’ensemble de la communauté scientifique pour favoriser les synergies et assurer la durabilité des infrastructures sur le long terme, à l‘échelle nationale, européenne ou internationale, conférant ainsi à la France un rôle incontournable dans le paysage européen. Ce document, préparé par le groupe transversal « Infrastructures, systèmes d’observation, services d’information environnementale et climatique » de l’alliance, présente, par grands milieux naturels, les infrastructures de recherche du domaine au niveau national (la plupart inscrites sur la feuille de route nationale des infrastructures de recherche) ou européen (essentiellement inscrite sur la roadmap ESFRI). Il analyse la manière dont elles permettent d’aborder les enjeux relatifs aux recherches en sciences de l’environnement et présente des propositions pour le futur du dispositif., {"references":["S. Mahé, C. Marlin et al. (2020) Livre Blanc sur les infrastructures françaises de recherche du domaine des sciences du système Terre et de l'environnement - Vision stratégique d'AllEnvi 2020-2030. Paris, France : AllEnvi, 116 p."]}
- Published
- 2020
- Full Text
- View/download PDF
27. The Copernicus Marine Environment Monitoring Service Ocean State Report
- Author
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Simon A. Good, Roshin P. Raj, Tanguy Szekely, Yann Drillet, Pierre-Marie Poulain, Charles Desportes, M. Hamon, Irene Perez-Gonzalez, Sandrine Mulet, Lars Axell, Enrique Álvarez-Fanjul, Owen Embury, Gerasimos Korres, Clement Bricaud, Elin Almroth-Rosell, Bruno Buongiorno Nardelli, Jean François Legeais, Quentin Dagneaux, Vidar S. Lien, Shubha Sathyendranath, Angélique Melet, Marie-Fanny Racault, Marcos García Sotillo, Pat Hyder, Aurélien Paulmier, Nathalie Verbrugge, Stephen Dye, Robert J. W. Brewin, Jun She, Mélanie Juza, Antonio G. Ramos, Laurent Parent, Elodie Gutknecht, Isabelle Pujol, Jérôme Gourrion, John Kennedy, Jason Holt, Antonio Bonaduce, Annette Samuelsen, Clotilde Dubois, Stephanie Guinehut, Florent Gasparin, Begoña Pérez-Gómez, Jonathan Tinker, Benoit Meyssignac, Lars-Anders Breivik, Karina von Schuckmann, Peter Sykes, Enda O'Dea, Magdalena Balmaseda, Bengt Karlson, Michael Ablain, Fabrice Hernandez, Gianpiero Cossarini, Alvaro De Pascual, Lena Viktorsson, Emanuela Clementi, Herve Roquet, Urmas Raudsepp, Rosemary Morrow, Giulio Notarstefano, Pierre-Yves Le Traon, Rebecca Reid, Cosimo Solidoro, Joaquín Tintoré, Marie Drevillon, Gilles Garric, Andrea Pisano, Dionysios E. Raitsos, Simona Simoncelli, Eric Greiner, Einar Olason, Coralie Perruche, Hélène Etienne, Fernando Manzano-Munoz, Claudia Fratianni, Nadia Pinardi, Bruno Levier, von Schuckmann, Karina, Le Traon, Pierre-Yve, Alvarez-Fanjul, Enrique, Axell, Lar, Balmaseda, Magdalena, Breivik, Lars-Ander, Brewin, Robert J. W., Bricaud, Clement, Drevillon, Marie, Drillet, Yann, Dubois, Clotilde, Embury, Owen, Etienne, Hélène, Sotillo, Marcos García, Garric, Gille, Gasparin, Florent, Gutknecht, Elodie, Guinehut, Stéphanie, Hernandez, Fabrice, Juza, Melanie, Karlson, Bengt, Korres, Gerasimo, Legeais, Jean-Françoi, Levier, Bruno, Lien, Vidar S., Morrow, Rosemary, Notarstefano, Giulio, Parent, Laurent, Pascual, Álvaro, Pérez-Gómez, Begoña, Perruche, Coralie, Pinardi, Nadia, Pisano, Andrea, Poulain, Pierre-Marie, Pujol, Isabelle M., Raj, Roshin P., Raudsepp, Urma, Roquet, Hervé, Samuelsen, Annette, Sathyendranath, Shubha, She, Jun, Simoncelli, Simona, Solidoro, Cosimo, Tinker, Jonathan, Tintoré, Joaquín, Viktorsson, Lena, Ablain, Michael, Almroth-Rosell, Elin, Bonaduce, Antonio, Clementi, Emanuela, Cossarini, Gianpiero, Dagneaux, Quentin, Desportes, Charle, Dye, Stephen, Fratianni, Claudia, Good, Simon, Greiner, Eric, Gourrion, Jerome, Hamon, Mathieu, Holt, Jason, Hyder, Pat, Kennedy, John, Manzano-Muñoz, Fernando, Melet, Angélique, Meyssignac, Benoit, Mulet, Sandrine, Buongiorno Nardelli, Bruno, O’Dea, Enda, Olason, Einar, Paulmier, Aurélien, Pérez-González, Irene, Reid, Rebecca, Racault, Marie-Fanny, Raitsos, Dionysios E., Ramos, Antonio, Sykes, Peter, Szekely, Tanguy, and Verbrugge, Nathalie
- Subjects
0106 biological sciences ,Arctic sea ice decline ,State of the ocean ,010504 meteorology & atmospheric sciences ,Effects of global warming on oceans ,Antarctic sea ice ,Oceanografi, hydrologi och vattenresurser ,Oceanography ,Ocean reporting ,01 natural sciences ,Oceanography, Hydrology and Water Resources ,Copernicus Marine Environment Monitoring Service ,Sea ice ,Operational oceanography ,Ocean climate variability ,14. Life underwater ,0105 earth and related environmental sciences ,geography ,geography.geographical_feature_category ,010604 marine biology & hydrobiology ,Arctic ice pack ,Sea surface temperature ,13. Climate action ,Climatology ,Environmental science ,Thermohaline circulation ,Ocean variability ,Ocean monitoring ,Ocean heat content - Abstract
The Copernicus Marine Environment Monitoring Service (CMEMS) Ocean State Report (OSR) provides an annual report of the state of the global ocean and European regional seas for policy and decision-makers with the additional aim of increasing general public awareness about the status of, and changes in, the marine environment. The CMEMS OSR draws on expert analysis and provides a 3-D view (through reanalysis systems), a view from above (through remote-sensing data) and a direct view of the interior (through in situ measurements) of the global ocean and the European regional seas. The report is based on the unique CMEMS monitoring capabilities of the blue (hydrography, currents), white (sea ice) and green (e.g. Chlorophyll) marine environment. This first issue of the CMEMS OSR provides guidance on Essential Variables, large-scale changes and specific events related to the physical ocean state over the period 1993–2015. Principal findings of this first CMEMS OSR show a significant increase in global and regional sea levels, thermosteric expansion, ocean heat content, sea surface temperature and Antarctic sea ice extent and conversely a decrease in Arctic sea ice extent during the 1993–2015 period. During the year 2015 exceptionally strong large-scale changes were monitored such as, for example, a strong El Niño Southern Oscillation, a high frequency of extreme storms and sea level events in specific regions in addition to areas of high sea level and harmful algae blooms. At the same time, some areas in the Arctic Ocean experienced exceptionally low sea ice extent and temperatures below average were observed in the North Atlantic Ocean.
- Published
- 2016
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