globalchange  > 气候变化事实与影响
DOI: 10.1175/JCLI-D-16-0171.1
Scopus记录号: 2-s2.0-85000969903
论文题名:
Contrasting responses of the hadley circulation to equatorially asymmetric and symmetric meridional sea surface temperature structures
作者: Feng J.; Li J.; Jin F.; Liu Z.; Nan X.; Guo Y.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2016
卷: 29, 期:24
起始页码: 8949
结束页码: 8963
语种: 英语
Scopus关键词: Atmospheric temperature ; Atmospheric thermodynamics ; Submarine geophysics ; Surface properties ; Surface waters ; Amplitude variations ; Asymmetric modes ; Atmosphere-ocean interactions ; Hadley circulation ; Long-term variability ; Sea surface temperature (SST) ; Temporal variation ; Two-component ; Oceanography
英文摘要: The impacts of different meridional structures of tropical sea surface temperature (SST) on the Hadley circulation (HC) in the annual mean are investigated during the period 1948-2013. By decomposing the variations in SST and the HC into two components-that is, the equatorially asymmetric (SEA for SST, and HEA for HC) and the equatorially symmetric (SES for SST, and HES for HC) parts-it is shown that the long-term variability in SEA and SES captures well the temporal variations in equatorially asymmetric and symmetric variations in SST. The variation in HEA is closely linked to that of SEA, and the variation in HES is connected with that of SES. However, the response of HEA to a given amplitude variation in SEA is stronger (by ~5 times) than that of HES to the same amplitude variation in SES. This point is further verified by theoretical and numerical models, indicating that the meridional structure of SST plays a crucial role in determining the anomalies in HC. This result may explain why the principal mode of HC is dominated by an equatorially asymmetric mode in its long-term variability. © 2016 American Meteorological Society.
资助项目: NSFC, National Natural Science Foundation of China
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50254
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作者单位: College of Global Change and Earth System Science, Beijing Normal University, Beijing, China; Joint Center for Global Change Studies, Beijing, China; School of Ocean and Earth Science and Technology, University of Hawai'i at Manoa, Honolulu, HI, United States; Department of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, Madison, WI, United States; Nelson Institute Center for Climatic Research, University of Wisconsin-Madison, Madison, WI, United States; Laboratory for Climate and Ocean-Atmosphere Studies, Department of Atmospheric and Oceanic Sciences, School of Physics, Peking University, Beijing, China; Beijing Meteorological Service, Beijing, China; School of Atmospheric Sciences, Nanjing University, Nanjing, China

Recommended Citation:
Feng J.,Li J.,Jin F.,et al. Contrasting responses of the hadley circulation to equatorially asymmetric and symmetric meridional sea surface temperature structures[J]. Journal of Climate,2016-01-01,29(24)
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