DOI: 10.1002/2015GL063310
论文题名: Improving climate model simulation of tropical Atlantic sea surface temperature: The importance of enhanced vertical atmosphere model resolution
作者: Harlaß J. ; Latif M. ; Park W.
刊名: Geophysical Research Letters
ISSN: 0094-8785
EISSN: 1944-8516
出版年: 2015
卷: 42, 期: 7 起始页码: 2401
结束页码: 2408
语种: 英语
英文关键词: Benguela upwelling
; ITCZ
; SST bias
; tropical Atlantic
Scopus关键词: Atmospheric temperature
; Oceanography
; Submarine geophysics
; Surface properties
; Surface waters
; Tropics
; Benguela
; Benguela upwelling regions
; Climate model simulations
; Horizontal and vertical resolutions
; ITCZ
; Sea surface temperature (SST)
; SST bias
; Tropical atlantic
; Climate models
; climate modeling
; global climate
; sea surface temperature
; simulation
; thermal structure
; upper ocean
; upwelling
; wind stress
; zonal flow
; Angola
; Atlantic Ocean
; Atlantic Ocean (Tropical)
; Benguela
英文摘要: A long-standing problem in climate modeling is the inaccurate simulation of tropical Atlantic (TA) sea surface temperature (SST), known as the TA SST bias. It has far-reaching consequences for climate prediction in that area as it goes along, among others, with erroneous precipitation patterns. We show that the TA SST bias can be largely reduced by increasing both the atmospheric horizontal and vertical resolutions in a climate model. At high horizontal resolution, enhanced vertical resolution is indispensable to substantially improve the simulation of TA SST by enhancing surface wind stress. This also reduces biases in the upper ocean thermal structure and precipitation patterns. Although, enhanced horizontal resolution alone leads to some improvement in the mean climate, typical bias patterns characterized by a reversed zonal SST gradient at the equator and too warm SST in the Benguela upwelling region are mostly unchanged at a coarser vertical resolution. Key Points Global climate models exhibit severe SST biases in tropical Atlantic High vertical atmosphere model resolution substantially improves SST simulation There is potential to improve climate predictions in the tropical Atlantic ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928703128&doi=10.1002%2f2015GL063310&partnerID=40&md5=ecab59510d2c89680416a372cc9d0dda
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8401
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: GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Recommended Citation:
Harlaß J.,Latif M.,Park W.. Improving climate model simulation of tropical Atlantic sea surface temperature: The importance of enhanced vertical atmosphere model resolution[J]. Geophysical Research Letters,2015-01-01,42(7).