OBSERVATIONS ON THE MARINE ATMOSPHERIC BOUNDARY LAYER MODULATION DUE TO THE PASSAGE OF A FRONTAL SYSTEM IN THE SOUTHWESTERN ATLANTIC
Keywords:Marine atmospheric boundary layer. Heat fluxes.
AbstractBetween 6-9 December 2012, the Oceanographic Vessel Alpha Crucis took oceanographic stations in the Southwestern Atlantic Ocean in support to both SAMOC and ACEx projects. During the research cruise, the vessel performed measurements with the release of weather balloons. From the data collected by the radiosondes, it was possible to verify the variability of the marine atmospheric boundary layer (MABL) in the area and period of study. From meteorological and oceanographic data, it was possible to estimate the latent and sensible heat fluxes from bulk parameterization. During an episode of formation of an extratropical cyclone, the results ,of this work demonstrate the impact of the synoptic conditions influencing the evolution of the MABL. During the prefrontal condition a stratification of the MABL was verified. The latent and sensible heat fluxes directed from the ocean to the atmosphere were low or negative (from the atmosphere to the ocean). During the post frontal condition, the MABL was well developed with a 1200 m height and the latent and sensible heat fluxes from the ocean to the atmosphere were more intense. These observations are fundamental to widen our understanding on the physical processes occurring at the ocean-atmosphere interface and have primary importance for the weather and climate forecast of the south-southwestern region of Brazil.
Acevedo, O. C.; Pezzi, L. P.; Souza, R. B.; Anabor, V.; Degrazia, G. A. Atmospheric boundary layer adjustment to the synoptic cycle at the Brazil-Malvinas Confluence, South Atlantic Ocean. Journal of Geophysical Research, v. 115, n. D22, p. 1-12, nov 2010.
Camargo, R.; Todesco, E.; Pezzi, L. P.; Souza, R. B. Modulation mechanisms of marine atmospheric boundary layer at the Brazil-Malvinas Confluence region. Journal of Geophysical Research: Atmospheres, v. 118, n. 12, p. 6266–6280, 2013.
Fairall, C. W.; Bradley, E. F.; Rogers, D. P.; Edson, J. B.; Young, G. S. Bulk parameterization of air-sea fluxes for Tropical Ocean- Global Atmosphere Coupled-Ocean Atmosphere Response Experiment difference relative analysis. Journal of Geophysical Research, v. 101, p. 3747-3764, 1996.
Farias, P. C. Fluxos de calor e dióxido de carbono entre o oceano e a atmosfera na região costeira e oceânica ao sul do Brasil. 2014. 91 p. Dissertação (Mestrado) — Universidade Federal de Santa Maria, Santa Maria, RS, Brasil, 2014.
Peixoto, J. P.; Oort, A. H. Physics of Climate. New York: Springer-Verlag New York, 1992. 495p.
Pezzi, L. P.; Souza, R. B. DE; Acevado, O.; et al. Multiyear measurements of the oceanic and atmospheric boundary layers at the Brazil-Malvinas confluence region. Journal of Geophysical Research, v. 114, n. D19, p. 1-19, out 2009.
Pezzi, L. P.; Souza, R. B. Variabilidade de mesoescala e interação oceano-atmosfera no Atlântico Sudoeste. In: CAVALCANTI et al. Tempo e Clima no Brasil. São Paulo: Oficina de Textos, 2009. p. 385-405.
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