DOI: 10.1002/2013GL058312
论文题名: Origins of wind-driven intraseasonal sea level variations in the North Indian Ocean coastal waveguide
作者: Suresh I. ; Vialard J. ; Lengaigne M. ; Han W. ; McCreary J. ; Durand F. ; Muraleedharan P.M.
刊名: Geophysical Research Letters
ISSN: 0094-8407
EISSN: 1944-8138
出版年: 2013
卷: 40, 期: 21 起始页码: 5740
结束页码: 5744
语种: 英语
英文关键词: coastal waveguide
; equatorial waveguide
; intraseasonal sea level variability
; local and remote forcing
; northern Indian Ocean
Scopus关键词: Continuously stratified
; Equatorial forcing
; Equatorial regions
; North indian oceans
; Northern indian oceans
; Remote forcing
; Sea level variability
; Sea level variations
; Sea level
; Waveguides
; annual variation
; atmospheric forcing
; coastal zone
; hydrological modeling
; sea level change
; wind-driven circulation
; Arabian Sea
; Bay of Bengal
; Indian Ocean
英文摘要: In this paper, we show that a linear, continuously stratified ocean model reproduces observed wind-driven intraseasonal sea level variability in the coastal waveguide of the Northern Indian Ocean (NIO). Sensitivity experiments with intraseasonal wind forcing selectively applied in the equatorial region, Bay of Bengal, and Arabian Sea show that a large part of the basin-scale sea level variations are driven by zonal wind fluctuations along the equator. Within the NIO coastal waveguide, the contribution of remote equatorial forcing decreases from ~80-90% in the Andaman Sea to ~50% northeast of Sri Lanka and then increases to ~60-70% along the west coast of India. During the southwest monsoon, intraseasonal wind variations become stronger over the NIO, resulting in a larger contribution of local wind forcing to sea level variability along the west (up to 60%) and east (up to 40%) coasts of India. Key Points Equatorial winds drive North Indian Ocean intraseasonal sea level variations Local wind variations contribute more in summer ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84887515914&doi=10.1002%2f2013GL058312&partnerID=40&md5=e05e63312e99743145682e204a4ff243
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5671
Appears in Collections: 气候减缓与适应
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作者单位: CSIR-National Institute of Oceanography, Dona Paula, Goa 403 004, India
Recommended Citation:
Suresh I.,Vialard J.,Lengaigne M.,et al. Origins of wind-driven intraseasonal sea level variations in the North Indian Ocean coastal waveguide[J]. Geophysical Research Letters,2013-01-01,40(21).