DOI: 10.1002/2017JD028219
Scopus记录号: 2-s2.0-85043401894
论文题名: A Comparison of the Response of the Hadley Circulation to Different Tropical SST Meridional Structures During the Equinox Seasons
作者: Feng J. ; Li J. ; Jin F.-F. ; Zheng F.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期: 5 起始页码: 2591
结束页码: 2604
语种: 英语
英文关键词: equatorially asymmetric
; equatorially symmetric
; Hadley circulation
; meridional structures
; sea surface temperature
Scopus关键词: air-sea interaction
; annual variation
; Atlantic Multidecadal Oscillation
; comparative study
; El Nino
; Hadley cell
; meridional circulation
; sea surface temperature
; seasonal variation
; Pacific Ocean
; Pacific Ocean (Central)
英文摘要: The response of the Hadley circulation (HC) to different tropical sea surface temperature (SST) patterns during the equinox seasons (i.e., boreal spring and autumn) is analyzed. Although the HC shows quasi-equatorially symmetric structure in both equinox seasons, both the climatology and the interannual variations of the HC display considerable differences, that is, being more equatorially asymmetric (symmetric) during autumn (spring). After decomposing the variations of the HC and zonal SST into the equatorially asymmetric (i.e., HC's equatorially asymmetric variation (HEA) for HC and SST's equatorially asymmetric variation (SEA) for SST) and symmetric (i.e., HC's equatorially symmetric variation (HES) for HC and SST's equatorially symmetric variation (SES) for SST) components, the differences in the HC between spring and autumn are shown to derive mainly from the HEA. Meanwhile, the contrast in the response of the HEA to SEA against HES to SES is greater in spring than in autumn, suggesting the HC is more sensitive to the SST conditions in spring. The variation of the HEA is related to different signals in spring and autumn that is linked to the central Pacific El Niño during spring but to the Atlantic Multidecadal Oscillation during autumn. The different contributors are associated with the differences in both the spatial extent and temporal variations in the HEA. In contrast, both spring and autumn HES are closely linked to the canonical El Niño, favoring similar variations in spring and autumn HES. The results here provide a possible explanation of the different variations in the HC during spring and autumn and highlight the seasonal dependence of the response of the HC to SST. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114277
Appears in Collections: 气候减缓与适应
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作者单位: State Key Laboratory of Earth Surface Processes and Resource Ecology and College of Global Change and Earth System Science, Beijing Normal University, Beijing, China; Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; School of Ocean and Earth Science and Technology, University of Hawai‘i at Mānoa, Honolulu, HI, United States; 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:
Feng J.,Li J.,Jin F.-F.,et al. A Comparison of the Response of the Hadley Circulation to Different Tropical SST Meridional Structures During the Equinox Seasons[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(5)