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	Provedor de dados ArchiMer (3) Autor Aguiar-gonzalez, B. (1) De Ruijter, W. P. M. (1) Dilmahamod, Ahmad Fehmi (1) Durand, Gael (1) Gourcuff, Claire (1) Hermes, J. C. (1) Jourdain, Nicolas C. (1) Le Sommer, Julien (1) Madec, Gurvan (1) Malan, N. (1) Mathiot, Pierre (1) Merino, Nacho (1) Penven, P. (1) Reason, C. J. C. (1) Tournadre, Jean (1) Mais... Palavra-chave Freshwater fluxes (3) Altimetry (1) Altimétrie (1) Atlantique Nord (1) Circulation Méridienne de Retournement (MOC) (1) Courant Côtier Est Groenlandais (1) Courantology (1) Courantométrie (1) East Greenland Coastal Current (1) Eddy corridor (1) Eddy demography (1) Flux d'eau douce (1) Geostrophy (1) Gyre subpolaire (1) Géostrophie (1) Heat (1) Heat transport (1) Icebergs (1) Inverse Model (1) Long-lived eddies (1) Mais... Tipo do documento Text (3) Ano 2018 (1) 2016 (1) 2008 (1) País France (3) Idioma Inglês (2) Francês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última SIDDIES Corridor: A Major East-West Pathway of Long-Lived Surface and Subsurface Eddies Crossing the Subtropical South Indian Ocean ArchiMer Dilmahamod, Ahmad Fehmi; Aguiar-gonzalez, B.; Penven, P.; Reason, C. J. C.; De Ruijter, W. P. M.; Malan, N.; Hermes, J. C.. South Indian Ocean eddies (SIDDIES), originating from a high evaporation region in the eastern Indian Ocean, are investigated by tracking individual eddies from satellite data and co‐located Argo floats. A subsurface‐eddy identification method, based on its steric dynamic height anomaly, is devised to assign Argo profiles to surface eddies (surfSIDDIES) or subsurface eddies (subSIDDIES). These westward‐propagating, long‐lived features (>3 months) prevail over a preferential latitudinal band, forming a permanent structure linking the eastern to the western Indian Ocean, that we call the 'SIDDIES Corridor'. Key features have been revealed in the mean thermohaline vertical structure of these eddies. Anticyclonic SIDDIES are characterized by positive... Tipo: Text Palavras-chave: South Indian Ocean; Eddy corridor; Surface and subsurface eddies; Long-lived eddies; Eddy demography; Heat; Freshwater fluxes. Ano: 2018 URL: https://archimer.ifremer.fr/doc/00440/55194/56670.pdf Antarctic icebergs melt over the Southern Ocean : climatology and impact on sea ice ArchiMer Merino, Nacho; Le Sommer, Julien; Durand, Gael; Jourdain, Nicolas C.; Madec, Gurvan; Mathiot, Pierre; Tournadre, Jean. Recent increase in Antarctic freshwater release to the Southern Ocean is suggested to contribute to change in water masses and sea ice. However, climate models differ in their representation of the freshwater sources. Recent improvements in altimetry-based detection of small icebergs and in estimates of the mass loss of Antarctica may help better constrain the values of Antarctic freshwater releases. We propose a model-based seasonal climatology of iceberg melt over the Southern Ocean using state-of-the-art observed glaciological estimates of the Antarctic mass loss. An improved version of a Lagrangian iceberg model is coupled with a global, eddy-permitting ocean/sea ice model and compared to small icebergs observations. Iceberg melt increases sea ice... Tipo: Text Palavras-chave: Icebergs; Southern Ocean; Sea ice; Freshwater fluxes. Ano: 2016 URL: http://archimer.ifremer.fr/doc/00335/44579/44294.pdf Etude de la variabilité de la circulation du gyre subpolaire de l'Atlantique Nord à partir des données Ovide et de mesures satellitaires ArchiMer Gourcuff, Claire. The cyclonic circulation of the North Atlantic subpolar gyre, between 50°N and 63°N, plays a key role in the climate variability. The Ovide program contributes to the observation of the circulation in this region. A section is repeated every two years in summer since 2002 between Greenland and Portugal following a path close the Fourex 1997 section. To get transport estimates across the sections, a geostrophic box inverse model is used, constrained with direct current measurements. Our new estimates of Fourex transports show the need to use constraints temporally associated with the section to get transports estimates representative of the circulation at the section realisation dates. It is also shown that altimetry velocities can be used instead of ADCP... Tipo: Text Palavras-chave: Inverse Model; Courantology; Geostrophy; Altimetry; East Greenland Coastal Current; Freshwater fluxes; Heat transport; Meridionnal Overturning Circulation (MOC); Variability; North Atlantic; Subpolar gyre; Ovide; Modèle inverse; Géostrophie; Courantométrie; Altimétrie; Courant Côtier Est Groenlandais; Flux d'eau douce; Transport de chaleur; Circulation Méridienne de Retournement (MOC); Variabilité; Atlantique Nord; Gyre subpolaire; Ovide. Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/these-6226.pdf Registros recuperados: 3 Primeira ... 1 ... Última

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