Browsing by Author "Madec, G."
Now showing items 1-11 of 11
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Contribution of mesoscale processes to nutrient budgets in the Arabian Sea
Resplandy, L.; Levy, M.; Madec, G.; Pous, S.; Aumont, O.; DileepKumar, M. (American Geophysical Union, 2011)We examine the impact of mesoscale dynamics on the seasonal cycle of primary production in the Arabian Sea with an eddy-resolving (1/12 degrees) bio-physical model. Comparison with observations indicates that the numerical ... -
Contribution of tropical cyclones to the air-sea CO2 flux: A global view
Levy, M.; Lengaigne, M.; Bopp, L.; Vincent, E.M.; Madec, G.; Ethe, C.; DileepKumar, M.; Sarma, V.V.S.S. (American Geophysical Union, 2012)Previous case studies have illustrated the strong local influence of tropical cyclones (TCs) on CO sub(2) air-sea flux (F sub(CO2)), suggesting that they can significantly contribute to the global F sub(CO2). In this study, ... -
Impact of temperature inversions on SST evolution in the South-Eastern Arabian Sea during the pre-summer monsoon season
Durand, F.; Shetye, S.R.; Vialard, J.; Shankar, D.; Shenoi, S.S.C.; Ethe, C.; Madec, G. (American Geophysical Union, 2004)Temperature inversions are known to occur in the near-surface ocean regime where salinity stratification is large enough to influence the density field. However, they have not been known as features that alter near-surface ... -
Influence of upper ocean stratification interannual variability on tropical cyclones
Vincent, E.M.; Emanuel, K.A.; Lengaigne, M.; Vialard, J.; Madec, G. (American Geophysical Union, 2014)Climate modes, such as the El Nino Southern Oscillation (ENSO), influence Tropical Cyclones ~ (TCs) interannual activity through their effect on large-scale atmospheric environment. These climate modes also induce interannual ... -
Influence of upper-ocean stratification on tropical cyclone-induced surface cooling in the Bay of Bengal
Neetu, S.; Lengaigne, M.; Vincent, E.M.; Vialard, J.; Madec, G.; Samson, G.; RameshKumar, M.R.; Durand, F. (American Geophysical Union, 2012)Surface cooling induced by tropical cyclones (TCs) is about three times larger during premonsoon than during postmonsoon season in the Bay of Bengal. We investigate processes responsible for this seasonal contrast using ... -
Interannual variability of the South Pacific Convergence Zone and implications for tropical cyclone genesis
Vincent, E.M.; Lengaigne, M.; Menkes, C.E.; Jourdain, N.C.; Marchesiello, P.; Madec, G. (Springer, 2011)The interannual variability of the South Pacific Convergence Zone (SPCZ) and its influence on tropical cyclone (TC) genesis in the South Pacific are investigated using observations and ERA40 reanalysis over the 1979– 2002 ... -
Is there an effect of Bay of Bengal salinity on the northern Indian Ocean climatological rainfall?
Krishnamohan, K.S.; Vialard, J.; Lengaigne, M.; Masson, S.; Samson, G.; Pous, S.; Neetu, S.; Durand, F.; Shenoi, S.S.C.; Madec, G. (2019)The northern Bay of Bengal (BoB) receives a large amount of freshwater directly from monsoonal rains over the ocean, and indirectly through river runoffs. It has been proposed that the resulting strong salinity stratification ... -
Modeling the barrier-layer formation in the South-Eastern Arabian Sea
Durand, F.; Shankar, D.; DeBoyer Montegut, C.; Shenoi, S.S.C.; Blanke, B.; Madec, G. (American Meteorological Society, 2007)The effect of salinity on the formation of the barrier layer (BL) in the South-Eastern Arabian Sea (SEAS) is investigated using an ocean general circulation model. In accordance with previous studies, the runoff distribution ... -
Observation-Based Estimates of Surface Cooling Inhibition by Heavy Rainfall under Tropical Cyclones
Jourdain, N.C.; Lengaigne, M.; Vialard, J.; Madec, G.; Menkes, C.E.; Vincent, E.M.; Jullien, E.; Barnier, B. (American Meteorological Society, 2013)Tropical cyclones drive intense ocean vertical mixing that explains most of the surface cooling observed in their wake (the "cold wake"). The influence of cyclonic rainfall on the cold wake at a global scale over the 2002-09 ... -
Simulated seasonal and interannual variability of mixed layer heat budget in the northern Indian Ocean
DeBoyer Montegut, C.; Vialard, J.; Shenoi, S.S.C.; Shankar, D.; Durand, F.; Ethe, C.; Madec, G. (American Meteorological Society, 2007)A global Ocean General Circulation Model (OGCM) is used to investigate the mixed layer heat budget of the Northern Indian Ocean (NIO). The model is validated against observations and shows a fairly good agreement with mixed ... -
The NOW regional coupled model: Application to the tropical Indian Ocean climate and tropical cyclone activity
Samson, G.; Masson, S.; Lengaigne, M.; Keerthi, M.G.; Vialard, J.; Pous, S.; Madec, G.; Jourdain, N.C.; Jullien, S.; Menkes, C.; Marchesiello, P. (American Geophysical Union, 2014)This paper presents the NOW regional coupled ocean-atmosphere model built from the NEMO ocean and WRF atmospheric numerical models. This model is applied to the tropical Indian Ocean, with the oceanic and atmospheric ...