DOI: 10.1002/2015GL065973
论文题名: Double ITCZ in Coupled Ocean-Atmosphere Models: From CMIP3 to CMIP5
作者: Zhang X. ; Liu H. ; Zhang M.
刊名: Geophysical Research Letters
ISSN: 0094-9606
EISSN: 1944-9337
出版年: 2015
卷: 42, 期: 20 起始页码: 8651
结束页码: 8659
语种: 英语
英文关键词: CMIP3
; CMIP5
; double ITCZ
Scopus关键词: Atmospheric temperature
; Oceanography
; Surface waters
; CMIP3
; CMIP5
; Coupled climate model
; Coupled Model Intercomparison Project
; double ITCZ
; Intertropical convergence zone
; Ocean-atmosphere models
; Sea surface temperature (SST)
; Climate models
; atmosphere-ocean coupling
; climate modeling
; correlation
; easterly wave
; ensemble forecasting
; intertropical convergence zone
; meridional circulation
; precipitation (climatology)
; sea surface temperature
; warming
; Pacific Ocean
; Pacific Ocean (Southeast)
英文摘要: Recent progress in reducing the double Intertropical Convergence Zone bias in coupled climate models is examined based on multimodel ensembles of historical climate simulations from Phase 3 and Phase 5 of the Coupled Model Intercomparison Project (CMIP3 and CMIP5). Biases common to CMIP3 and CMIP5 models include spurious precipitation maximum in the southeastern Pacific, warmer sea surface temperature (SST), weaker easterly, and stronger meridional wind divergences away from the equator relative to observations. It is found that there is virtually no improvement in all these measures from the CMIP3 ensemble to the CMIP5 ensemble models. The five best models in the two ensembles as measured by the spatial correlations are also assessed. No progress can be identified in the subensembles of the five best models from CMIP3 to CMIP5 even though more models participated in CMIP5; the biases of excessive precipitation and overestimated SST in southeastern Pacific are even worse in the CMIP5 models. Key Points Double ITCZ bias persists from CMIP3 to CMIP5 The CMIP5 MME with overall warmer SST suffers a more serious double ITCZ problem than CMIP3 MME No improvement can be identified in the subensembles of five best models from CMIP3 to CMIP5 © 2015. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84946600021&doi=10.1002%2f2015GL065973&partnerID=40&md5=e26b3ebeef4ca32e528efd656f7191d7
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9221
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: State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Zhang X.,Liu H.,Zhang M.. Double ITCZ in Coupled Ocean-Atmosphere Models: From CMIP3 to CMIP5[J]. Geophysical Research Letters,2015-01-01,42(20).