DOI: 10.1175/JCLI-D-14-00810.1
Scopus记录号: 2-s2.0-84947814760
论文题名: Climate model errors over the South Indian Ocean thermocline dome and their effect on the basin mode of interannual variability
作者: Li G. ; Xie S.-P. ; Du Y.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期: 8 起始页码: 3093
结束页码: 3098
语种: 英语
Scopus关键词: Atmospheric temperature
; Atmospheric thermodynamics
; Domes
; Mechanical waves
; Oceanography
; Stream flow
; Surface waters
; Asian summer monsoons
; Climate predictability
; Interannual variability
; Regional climate
; Sea surface temperature (SST)
; South Indian Ocean
; State of the art
; Westerly winds
; Climate models
; annual variation
; climate modeling
; easterly wave
; monsoon
; open ocean
; regional climate
; Rossby wave
; thermocline
; Indian Ocean
; Indian Ocean (South)
; South Asia
英文摘要: An open-ocean thermocline dome south of the equator is a striking feature of the Indian Ocean (IO) as a result of equatorial westerly winds. Over the thermocline dome, the El Niño-forced Rossby waves help sustain the IO basin (IOB) mode and offer climate predictability for the IO and surrounding countries. This study shows that a common equatorial easterly wind bias, by forcing a westward-propagating downwelling Rossby wave in the southern IO, induces too deep a thermocline dome over the southwestern IO (SWIO) in state-of-the-art climate models. Such a deep SWIO thermocline weakens the influence of subsurface variability on sea surface temperature (SST), reducing the IOB amplitude and possibly limiting the models' skill of regional climate prediction. To the extent that the equatorial easterly wind bias originates from errors of the South Asian summer monsoon, improving the monsoon simulation can lead to substantial improvements in simulating and predicting interannual variability in the IO. © 2015 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50697
Appears in Collections: 气候变化事实与影响
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作者单位: State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China; Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science and Technology, Nanjing, China; Scripps Institution of Oceanography, University of California, San Diego, CA, United States; Physical Oceanography Laboratory, Ocean University of China, Qingdao, China
Recommended Citation:
Li G.,Xie S.-P.,Du Y.. Climate model errors over the South Indian Ocean thermocline dome and their effect on the basin mode of interannual variability[J]. Journal of Climate,2015-01-01,28(8)