Influence of the Tropical Atlantic Ocean’s Sea Surface Temperature in the Eastern Northeast Brazil Precipitation

An analysis of the rainfall of the Eastern Northeast Brazil (ENEB) during the period from April to June and the processes of ocean-atmosphere interaction were performed during different epi-sodes of Sea Surface Temperature (SST) inter-hemispheric gradient of Atlant...

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Principais autores:	Amorim, Ana Cleide Bezerra, Chaves, Rosane Rodrigues, Silva, Cláudio Moisés Santos e
Formato:	article
Idioma:	English
Publicado em:	Scientific Research Publishing
Assuntos:	Ocean-atmosphere Coastline Heat balance Moisture fluxes Flux divergence
Endereço do item:	https://repositorio.ufrn.br/jspui/handle/123456789/28861 http://dx.doi.org/10.4236/acs.2014.45077
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id	ri-123456789-28861
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spelling	ri-123456789-288612020-05-05T02:43:14Z Influence of the Tropical Atlantic Ocean’s Sea Surface Temperature in the Eastern Northeast Brazil Precipitation Amorim, Ana Cleide Bezerra Chaves, Rosane Rodrigues Silva, Cláudio Moisés Santos e Ocean-atmosphere Coastline Heat balance Moisture fluxes Flux divergence An analysis of the rainfall of the Eastern Northeast Brazil (ENEB) during the period from April to June and the processes of ocean-atmosphere interaction were performed during different epi-sodes of Sea Surface Temperature (SST) inter-hemispheric gradient of Atlantic tropical (GRAD). For this, we used a dataset covering the 1981 to 2010 period, composed by: monthly data of accu-mulated precipitation of the Global Precipitation Climatology Project (GPCP); surface fluxes ob-tained from reanalysis of the National Center for Environmental Prediction (NCEP); vertically in-tegrated moisture flux divergence of the global model of European Centre for Medium Range Fo-recasting (ECMWF) reanalysis; SST data from the NCEP. Seven GRAD_S (southward SST gradient in the intertropical Atlantic) and five GRAD_N (northward SST gradient in the intertropical Atlantic) were selected. When the South Atlantic Ocean is warmer, the oceanic and atmospheric conditions are favorable to higher monthly precipitation near to the ENEB. We also observed a pronounced moisture convergence over parts of the ENEB during both, GRAD_S and GRAD_N episodes. The weather phenomena that operates remotely amplifying or inhibiting the rain also helps the rainy season; however, it appears that the contribution was greater than the spatial distribution of rainfall intensity. 2020-04-30T19:14:34Z 2020-04-30T19:14:34Z 2014-12 article AMORIM, Ana Cleide Bezerra; CHAVES, Rosane Rodrigues; SILVA, Cláudio Moisés Santos e. Influence of the Tropical Atlantic Ocean’s Sea Surface Temperature in the Eastern Northeast Brazil Precipitation. Atmospheric And Climate Sciences, [s. l.], v. 4, n. 5, p. 874-883, 2014. ISSN 2160-0422 versão online. DOI http://dx.doi.org/10.4236/acs.2014.45077. Disponível em: https://www.scirp.org/pdf/ACS_2014112611293471.pdf. Acesso em 23 abr. 2020. 2160-0414 (print), 2160-0422 (online) https://repositorio.ufrn.br/jspui/handle/123456789/28861 http://dx.doi.org/10.4236/acs.2014.45077 en Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Scientific Research Publishing
institution	Repositório Institucional
collection	RI - UFRN
language	English
topic	Ocean-atmosphere Coastline Heat balance Moisture fluxes Flux divergence
spellingShingle	Ocean-atmosphere Coastline Heat balance Moisture fluxes Flux divergence Amorim, Ana Cleide Bezerra Chaves, Rosane Rodrigues Silva, Cláudio Moisés Santos e Influence of the Tropical Atlantic Ocean’s Sea Surface Temperature in the Eastern Northeast Brazil Precipitation
description	An analysis of the rainfall of the Eastern Northeast Brazil (ENEB) during the period from April to June and the processes of ocean-atmosphere interaction were performed during different epi-sodes of Sea Surface Temperature (SST) inter-hemispheric gradient of Atlantic tropical (GRAD). For this, we used a dataset covering the 1981 to 2010 period, composed by: monthly data of accu-mulated precipitation of the Global Precipitation Climatology Project (GPCP); surface fluxes ob-tained from reanalysis of the National Center for Environmental Prediction (NCEP); vertically in-tegrated moisture flux divergence of the global model of European Centre for Medium Range Fo-recasting (ECMWF) reanalysis; SST data from the NCEP. Seven GRAD_S (southward SST gradient in the intertropical Atlantic) and five GRAD_N (northward SST gradient in the intertropical Atlantic) were selected. When the South Atlantic Ocean is warmer, the oceanic and atmospheric conditions are favorable to higher monthly precipitation near to the ENEB. We also observed a pronounced moisture convergence over parts of the ENEB during both, GRAD_S and GRAD_N episodes. The weather phenomena that operates remotely amplifying or inhibiting the rain also helps the rainy season; however, it appears that the contribution was greater than the spatial distribution of rainfall intensity.
format	article
author	Amorim, Ana Cleide Bezerra Chaves, Rosane Rodrigues Silva, Cláudio Moisés Santos e
author_facet	Amorim, Ana Cleide Bezerra Chaves, Rosane Rodrigues Silva, Cláudio Moisés Santos e
author_sort	Amorim, Ana Cleide Bezerra
title	Influence of the Tropical Atlantic Ocean’s Sea Surface Temperature in the Eastern Northeast Brazil Precipitation
title_short	Influence of the Tropical Atlantic Ocean’s Sea Surface Temperature in the Eastern Northeast Brazil Precipitation
title_full	Influence of the Tropical Atlantic Ocean’s Sea Surface Temperature in the Eastern Northeast Brazil Precipitation
title_fullStr	Influence of the Tropical Atlantic Ocean’s Sea Surface Temperature in the Eastern Northeast Brazil Precipitation
title_full_unstemmed	Influence of the Tropical Atlantic Ocean’s Sea Surface Temperature in the Eastern Northeast Brazil Precipitation
title_sort	influence of the tropical atlantic ocean’s sea surface temperature in the eastern northeast brazil precipitation
publisher	Scientific Research Publishing
publishDate	2020
url	https://repositorio.ufrn.br/jspui/handle/123456789/28861 http://dx.doi.org/10.4236/acs.2014.45077
work_keys_str_mv	AT amorimanacleidebezerra influenceofthetropicalatlanticoceansseasurfacetemperatureintheeasternnortheastbrazilprecipitation AT chavesrosanerodrigues influenceofthetropicalatlanticoceansseasurfacetemperatureintheeasternnortheastbrazilprecipitation AT silvaclaudiomoisessantose influenceofthetropicalatlanticoceansseasurfacetemperatureintheeasternnortheastbrazilprecipitation
_version_	1773958455802986496

Influence of the Tropical Atlantic Ocean’s Sea Surface Temperature in the Eastern Northeast Brazil Precipitation

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