Physics
Scientific paper
Nov 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3222603p&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 22, CiteID L22603
Physics
6
Oceanography: Physical: Air/Sea Interactions (0312, 3339), Oceanography: Physical: Eddies And Mesoscale Processes, Oceanography: Physical: Fronts And Jets, Oceanography: Physical: Upper Ocean And Mixed Layer Processes, Oceanography: General: Marine Meteorology
Scientific paper
This paper presents a description of marine atmospheric boundary layer (MABL) and oceanic boundary layer (OBL) interactions at the Brazil-Malvinas Confluence. Although this region is known as one of the most energetic zones of the World Ocean, very few studies have addressed the mechanisms of OA interaction there. Based upon novel, direct in situ simultaneous OA observations, our results show that the OBL-MABL exchanges are closely correlated with the sea surface temperature (SST) field. The heat fluxes range from 110 W.m-2 over warm waters down to 18 W.m-2 over cold waters. Higher heat fluxes and air-sea temperature differences are associated with stronger near-surface winds. This suggests that the MABL is modulated at the synoptic temporal and spatial scale by the strong surface thermal gradients between the (warm) Brazil and the (cold) Malvinas (Falklands) currents.
Dourado M. S.
Garcia Carlos A. E.
Mata Mauricio M.
Pezzi Luciano P.
Silva-Dias A. F. M.
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