DOI: 10.1007/s00382-017-4044-8
Scopus记录号: 2-s2.0-85038017208
论文题名: Summer precipitation anomalies in the low-latitude highlands of China coupled with the subtropical Indian Ocean dipole-like sea surface temperature
作者: Wang L. ; Gui S. ; Cao J. ; Yan H.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2018
卷: 51, 期: 2018-07-08 起始页码: 2773
结束页码: 2791
语种: 英语
Scopus关键词: air-sea interaction
; atmospheric forcing
; atmospheric general circulation model
; Indian Ocean Dipole
; precipitation (climatology)
; sea surface temperature
; summer
; temperature anomaly
; upland region
; zonal wind
; Bay of Bengal
; China
; Indian Ocean
英文摘要: The relationship between the subtropical Indian Ocean dipole (SIOD)-like sea surface temperature (SST) and summer precipitation in the low-latitude highlands (LLH) of China is investigated in a suite of numerical simulations using an atmospheric general circulation model (AGCM) and a coupled ocean–atmosphere model. The AGCM experiments driven by SIOD-like SST anomalies are inconsistent with the observations. However, the coupled ocean–atmosphere experiments show a good agreement with the observational results. The modeling results indicate that the air–sea interaction rather than a simple atmospheric forcing–response relationship is a crucial mechanism explaining the connection among the anomalous summer precipitation in the LLH, the anomalous divergence circulations across the Indian Ocean, and the SIOD-like SST anomalies. The effect of the enhanced interhemispheric vertical circulation variability associated with the SIOD-like SST anomalies facilitates zonal wind anomalies in the northern Bay of Bengal, and further induces anomalous water vapor convergence and precipitation anomalies in the LLH. The SST–wind–evaporation feedback mechanism could account for maintenance of the SIOD-like pattern in the coupled ocean–atmosphere experiments. These results could help to improve prediction accuracy of summer rainfall variations over the LLH of China. © 2017, Springer-Verlag GmbH Germany, part of Springer Nature. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109089
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Department of Atmospheric Sciences, Yunnan University, Kunming, 650091, China; Climate Center of Yunnan Province, Kunming, 650073, China
Recommended Citation:
Wang L.,Gui S.,Cao J.,et al. Summer precipitation anomalies in the low-latitude highlands of China coupled with the subtropical Indian Ocean dipole-like sea surface temperature[J]. Climate Dynamics,2018-01-01,51(2018-07-08)