DOI: 10.1175/JCLI-D-15-0878.1
Scopus记录号: 2-s2.0-85027279944
论文题名: Impacts of Agulhas leakage on the tropical Atlantic western boundary systems
作者: Castellanos P. ; Campos E.J.D. ; Piera J. ; Sato O.T. ; Silva Dias M.A.F.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2017
卷: 30, 期: 17 起始页码: 6645
结束页码: 6659
语种: 英语
Scopus关键词: Atmospheric thermodynamics
; Latent heat
; Oceanography
; Atmosphere-ocean interactions
; Global thermohaline circulation
; Hybrid coordinate ocean models
; Integrated transport
; Ocean circulation
; Tropical atlantic
; Volume transport
; Western boundary
; Heat flux
英文摘要: The influx of warmer and saltier Indian Ocean waters into the Atlantic-the Agulhas leakage-is now recognized to play an important role in the global thermohaline circulation and climate. In this study the results of a 1/12° simulation with the Hybrid Coordinate Ocean Model, which exhibit an augmentation in the Agulhas leakage, is investigated. This increase in the leakage ought to have an impact on the meridional oceanic volume and heat transports in the Atlantic Ocean. Significant linear trends found in the integrated transport at 20°, 15°, and 5°S correlate well with decadal fluctuations of the Agulhas leakage. The augmented transport also seems to be related to an increase in the latent heat flux observed along the northeastern coastline of Brazil since 2003. This study shows that the precipitation on the Brazilian coast has been increasing since 2005, at the same location and with the same regime shift observed for the latent heat flux and the volume transport. This suggests that the increase of the Agulhas transport affects the western boundary system of the tropical Atlantic Ocean, which is directly related to an increase in the precipitation and latent heat flux along the western coast. © 2017 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49737
Appears in Collections: 气候变化事实与影响
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作者单位: Instituto Oceanográfico, Universidade de São Paulo, São Paulo, Brazil; Institut de Ciències del Mar, Consejo Superior de Investigaciones Científicas, Barcelona, Spain; Instituto de Astronomia, Geofísica e Ciencias Atmosféricas, Universidade de São Paulo, São Paulo, Brazil
Recommended Citation:
Castellanos P.,Campos E.J.D.,Piera J.,et al. Impacts of Agulhas leakage on the tropical Atlantic western boundary systems[J]. Journal of Climate,2017-01-01,30(17)