DOI: 10.1175/JCLI-D-14-00096.1
Scopus记录号: 2-s2.0-84980378012
论文题名: Impacts of intraseasonal SST anomalies on precipitation during indian summer monsoon
作者: Xi J. ; Zhou L. ; Murtugudde R. ; Jiang L.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期: 11 起始页码: 4561
结束页码: 4575
语种: 英语
Scopus关键词: Atmospheric temperature
; Atmospheric thermodynamics
; Climate change
; Heat flux
; Precipitation (chemical)
; Submarine geophysics
; Surface properties
; Surface waters
; Air sea interactions
; Baroclinic instability
; Indian ocean
; Indian summer monsoon
; Instability mechanisms
; Intraseasonal variability
; Oceanic variabilities
; Sea surface temperature (SST)
; Oceanography
; air-sea interaction
; atmospheric forcing
; convection
; monsoon
; precipitation intensity
; sea surface temperature
; Bay of Bengal
; Indian Ocean
英文摘要: The forcing and response relation between the ocean and the atmosphere is often a two-way street. Based on the correlation between the surface heat flux and sea surface temperature (SST), it is found that the ocean plays an active role during the Indian summer monsoon (ISM) in two regions: One is the western coast of the Indian peninsula (WCI) and the other is the northern Bay of Bengal (NBB). A focus is made on the impacts of intraseasonal oceanic variabilities on heavy precipitation in these two regions during the ISM. Results show that warm intraseasonal SST anomalies contribute to the instabilities and deep convection in the atmosphere. In WCI, static instability is largely responsible for triggering convection, while in NBB, convection is mainly attributable to baroclinic instability. Despite such regional differences in instability mechanisms, heavy precipitation events during the ISM usually occur within ~3-6 days after the warm SST anomalies are organized. Understanding this process will be helpful to improve the predictive skill of the intraseasonal variabilities during the ISM, which is the lifeline for the countries on the rim of the Indian Ocean, whose food production depends critically on this seasonal phenomenon. © 2015 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50398
Appears in Collections: 气候变化事实与影响
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作者单位: College of Physical and Environmental Oceanography, Ocean University of China, Qingdao, China; State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Hangzhou, China; Earth System Science Interdisciplinary Center, University of Maryland, College Park, College Park, MD, United States
Recommended Citation:
Xi J.,Zhou L.,Murtugudde R.,et al. Impacts of intraseasonal SST anomalies on precipitation during indian summer monsoon[J]. Journal of Climate,2015-01-01,28(11)