المؤلفون: Paci, A., Caniaux, Guy, Gavart, M., Giordani, Hervé, Lévy, Marina, Prieur, Louis, Reverdin, Gilles

المساهمون: Centre national de recherches météorologiques (CNRM), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), 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)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-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)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS), Service Hydrographique et Océanographique de la Marine (SHOM), Ministère de la Défense, 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), 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)

المصدر: ISSN: 0148-0227.

مصطلحات موضوعية: [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph], [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph], [SDE.MCG]Environmental Sciences/Global Changes

الوصف: A modeling study of physical processes occurring in an area of the northeast Atlantic (21.33°-15.33°W, 38.00°-45.00°N) that was extensively sampled during the Programme Océan Multidisciplinaire Méso Echelle (POMME) (October 2000-September 2001) is carried out. The model is a mesoscale version of the ocean general circulation model OPA developed at the Laboratoire d'Océanographie Dynamique et de Climatologie in Paris. It is used in a three-dimensional limited area domain with a high-resolution grid (approximately 5 km horizontal spacing, 69 vertical levels) and realistic boundary conditions (initial state, air-sea fluxes, open boundary fluxes, and bottom topography). The objectives of the study are to properly simulate the upper ocean dynamics, particularly mesoscale activity and mixed layer evolution, during a key period (restratification) of the POMME experiment (POMME 1 and POMME 2, from February to May 2001) and to compare model results with oceanographic observations collected during the experiment in order to establish confidence in the model. Some results provided by the high-resolution simulation, in particular features related to mixed layer depth and vertical velocities, are also presented. There is no pronounced north-south mixed layer depth gradient, but strong filament-shaped structures associated with stirring at the periphery of eddies are present. Mixed layer restratification is simulated. It is associated with submesoscale mixed layer depth structures and intense vertical velocity filaments in the upper ocean correlated with the relative vorticity gradient field.

العلاقة: hal-00124810; https://hal.science/hal-00124810Test; https://hal.science/hal-00124810/documentTest; https://hal.science/hal-00124810/file/2004JC002712.pdfTest

الإتاحة: https://doi.org/10.1029/2004JC002712Test
https://hal.science/hal-00124810Test
https://hal.science/hal-00124810/documentTest
https://hal.science/hal-00124810/file/2004JC002712.pdfTest

المؤلفون: Lévy, Marina, Gavart, M., Mémery, Laurent, Caniaux, Guy, Paci, A.

المساهمون: Service Hydrographique et Océanographique de la Marine (SHOM), Ministère de la Défense, 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 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), Centre national de recherches météorologiques (CNRM), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), 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)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-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)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS)

المصدر: ISSN: 0148-0227.

مصطلحات موضوعية: [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]

الوصف: International audience ; A prognostic high-resolution model is established to provide an integrated view of the evolution of the spring bloom during the Programme Océan Multidisciplinaire Méso Echelle (POMME) experiments carried out at sea from February to May 2001 (16-22°W and 38°-45°N). Data collected during the first survey were used for model initialization, and data from three other cruises were used for model validation. The model successfully predicts the time evolution of the main reservoirs and fluxes, except for a storm event during postbloom conditions, for which the biological impact is underestimated. The bloom is long in duration (2 months), has low intensity (1 mg Chl m À3), and is characterized by a small f-ratio (0.45) and a small e-ratio (0.05). Furthermore, the model reveals much stronger space and time variability than sampled in the data. This large variability results both from the synoptic atmospheric variability and from the stirring induced by oceanic mesoscale eddies. In particular, the bloom starts in specific submesoscale features that correspond to filaments of minimum mixed layer depth. On short timescales (2-3 days), space and time variability have the same order of magnitude. On the seasonal timescale, time variability is larger than space variability. Considering the transient state of the system, this modeling exercise is also used to quantify the nonsynopticity of the observations, which occur mostly during bloom conditions, a crucial point for the data interpretation.

العلاقة: hal-00124671; https://hal.science/hal-00124671Test; https://hal.science/hal-00124671/documentTest; https://hal.science/hal-00124671/file/2004JC002588.pdfTest

الإتاحة: https://doi.org/10.1029/2004JC002588Test
https://hal.science/hal-00124671Test
https://hal.science/hal-00124671/documentTest
https://hal.science/hal-00124671/file/2004JC002588.pdfTest

المؤلفون: Roussel, N., Darrozes, J., Ha, C., Boniface, K., Frappart, F., Ramillien, G., Gavart, M., Van de Vyvere, L., Desenfans, O., Baup, F.

المصدر: 2016 IEEE Metrology for Aerospace (MetroAeroSpace)

الإتاحة: https://doi.org/10.1109/metroaerospace.2016.7573279Test
http://xplorestaging.ieee.org/ielx7/7564334/7573172/07573279.pdf?arnumber=7573279Test

المؤلفون: De Mey P. (1), Pinardi N. (2), Benkiran M. (3), Faucher P. (1), Demirov E. (2), Sparnocchia S. (4), Raicich F. (4), Maes C. (1), Dombrowsky E. (5), Greiner E. (5), Auclair F. (1), Gavart M. (6), Bahurel P. (6), Verron J. (7)

المصدر: 8 (2001).
info:cnr-pdr/source/autori:De Mey P. (1), Pinardi N. (2), Benkiran M. (3), Faucher P. (1), Demirov E. (2), Sparnocchia S. (4), Raicich F. (4), Maes C. (1), Dombrowsky E. (5), Greiner E. (5), Auclair F. (1), Gavart M. (6), Bahurel P. (6), Verron J. (7)/titolo:Multivariate data assimilation in support of forecasting of the North Atlantic and Mediterranean/doi:/rivista:/anno:2001/pagina_da:/pagina_a:/intervallo_pagine:/volume:8

الوصف: This Jason-1 proposal deals with short-range (days) and medium-range (weeks to months) prediction of ocean dynamical variables (typically, currents and tracers). This is done by assimilation of altimetry and in-situ data and the definition of ad hoc diagnostics. Two major applications to existing forecasting systems are included in the proposal: the Mediterranean Forecasting System Pilot Project (an EU project), and the French Mercator project.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=cnr_________::a9e9032265615c9c285febfdaf1d1b6cTest
https://publications.cnr.it/doc/69913Test

المؤلفون: Lévy, M., Gavart, M., Mémery, L., Caniaux, G., Paci, A.

المصدر: Journal of Geophysical Research. Oceans; 2005, Vol. 110 Issue C7, pn/a-n/a, 23p

المؤلفون: Burillo, I. Andreu, Caniaux, G., Gavart, M., De Mey, P., Baraille, R.

المصدر: Geophysical Research Letters; 2002, Vol. 29 Issue 18, p5-1-5-4, 4p

المؤلفون: Faucher, P., Gavart, M., De Mey, P.

المصدر: Journal of Geophysical Research. Oceans; 2002, Vol. 107 Issue C8, p21-1-21-17, 17p

المؤلفون: Gavart, M., Mey, P. De, Caniaux, G.

المصدر: Dynamics of Atmospheres and Oceans; 1999, Vol. 29 Issue: 2 p217-254, 38p