DOI: 10.1007/s00382-014-2168-7
Scopus记录号: 2-s2.0-84939883269
论文题名: Recent climatic trends in the tropical Atlantic
作者: Servain J. ; Caniaux G. ; Kouadio Y.K. ; McPhaden M.J. ; Araujo M.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2014
卷: 43, 期: 11 起始页码: 3071
结束页码: 3089
语种: 英语
英文关键词: Climatic trends
; Long-term warming
; Tropical Atlantic
英文摘要: A homogeneous monthly data set of sea surface temperature (SST) and pseudo wind stress based on in situ observations is used to investigate the climatic trends over the tropical Atlantic during the last five decades (1964–2012). After a decrease of SST by about 1 °C during 1964–1975, most apparent in the northern tropical region, the entire tropical basin warmed up. That warming was the most substantial (>1 °C) in the eastern tropical ocean and in the longitudinal band of the intertropical convergence zone. Surprisingly, the trade wind system also strengthened over the peirod 1964–2012. Complementary information extracted from other observational data sources confirms the simultaneity of SST warming and the strengthening of the surface winds. Examining data sets of surface heat flux during the last few decades for the same region, we find that the SST warming was not a consequence of atmospheric heat flux forcing. Conversely, we suggest that long-term SST warming drives changes in atmosphere parameters at the sea surface, most notably an increase in latent heat flux, and that an acceleration of the hydrological cycle induces a strengthening of the trade winds and an acceleration of the Hadley circulation. These trends are also accompanied by rising sea levels and upper ocean heat content over similar multi-decadal time scales in the tropical Atlantic. Though more work is needed to fully understand these long term trends, especially what happens from the mid-1970’s, it is likely that changes in ocean circulation involving some combination of the Atlantic meridional overtuning circulation and the subtropical cells are required to explain the observations. © 2014, Springer-Verlag Berlin Heidelberg. 资助项目: CNPq, Conselho Nacional de Desenvolvimento Científico e Tecnológico
; CNPq, Conselho Nacional de Desenvolvimento Científico e Tecnológico
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54376
Appears in Collections: 过去全球变化的重建
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作者单位: Institut de Recherche pour le Développement (IRD), UMR-182, LOCEAN, Université Paris-6, 4 Place Jussieu, Tours 45-55, Case 100, Paris Cedex 05, France; CRNM/GAME (Météo-France/CNRS), 42 Avenue G. Coriolis, Toulouse Cedex, France; Laboratoire de Physique de l’Atmosphère (LPA), UFR-SSMT, University of Cocody, 22 BP 582, Abidjan 22, Cote d'Ivoire; Pacific Marine Environmental Laboratory, NOAA, Seattle, WA, United States; Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, PE, Brazil; Fundação Cearense de Meteorologia e Recursos Hídricos (FUNCEME), Av. Rui Barbosa 1246, Aldeota, Fortaleza, CE, Brazil
Recommended Citation:
Servain J.,Caniaux G.,Kouadio Y.K.,et al. Recent climatic trends in the tropical Atlantic[J]. Climate Dynamics,2014-01-01,43(11)