DOI: 10.1002/2016GL071150
论文题名: Can reducing the incoming energy flux over the Southern Ocean in a CGCM improve its simulation of tropical climate?
作者: Mechoso C.R. ; Losada T. ; Koseki S. ; Mohino-Harris E. ; Keenlyside N. ; Castaño-Tierno A. ; Myers T.A. ; Rodriguez-Fonseca B. ; Toniazzo T.
刊名: Geophysical Research Letters
ISSN: 0094-8483
EISSN: 1944-8214
出版年: 2016
卷: 43, 期: 20 起始页码: 11057
结束页码: 11063
语种: 英语
英文关键词: GCMs
; ITCZ
; low clouds
Scopus关键词: Atmospheric temperature
; Incident solar radiation
; Precipitation (meteorology)
; Surface waters
; Systematic errors
; Tropics
; Atmosphere ocean general circulation models
; GCMs
; Incoming energy
; ITCZ
; Local perturbation
; Solar-radiation fluxes
; Top of the atmospheres
; Tropical climates
; Oceanography
英文摘要: Atmosphere-ocean general circulation models (CGCMs) show important systematic errors. Simulated precipitation in the tropics is generally overestimated over the oceans south of the equator, and stratocumulus (SCu) clouds are underestimated above too warm sea surface temperatures (SSTs). In the extratropics, SSTs are also too warm over the Southern Ocean. We argue that ameliorating these extratropical errors in a CGCM can result in an improved model's performance in the tropics depending upon the success in simulating the sensitivity of SCu to underlying SST. Our arguments are supported by the very different response obtained with two CGCMs to an idealized reduction of solar radiation flux incident at the top of the atmosphere over the Southern Ocean. It is shown that local perturbation impacts are very similar in the two models but that SST reductions in the SCu regions of the southern subtropics are stronger in the model with the stronger SCu-SST feedbacks. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84995555427&doi=10.1002%2f2016GL071150&partnerID=40&md5=7aeb8deaca46c677fd727eca599749c3
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9446
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA, United States
Recommended Citation:
Mechoso C.R.,Losada T.,Koseki S.,et al. Can reducing the incoming energy flux over the Southern Ocean in a CGCM improve its simulation of tropical climate?[J]. Geophysical Research Letters,2016-01-01,43(20).