DOI: 10.1002/grl.50412
论文题名: On the nature of meandering of the springtime western boundary current in the Bay of Bengal
作者: Gangopadhyay A. ; Bharat Raj G.N. ; Chaudhuri A.H. ; Babu M.T. ; Sengupta D.
刊名: Geophysical Research Letters
ISSN: 0094-9022
EISSN: 1944-8753
出版年: 2013
卷: 40, 期: 10 起始页码: 2188
结束页码: 2193
语种: 英语
英文关键词: altimeter
; Bay of Bengal
; eddies
; potential vorticity
; Western Boundary Current
Scopus关键词: Anticyclonic circulation
; Anticyclonic eddies
; Bay of Bengal
; eddies
; Hydrographic data
; Potential vorticity
; Satellite altimeter
; Western boundary currents
; Aneroid altimeters
; Earth sciences
; Geophysics
; Vorticity
; air-sea interaction
; anticyclone
; atmospheric circulation
; data set
; eddy
; hydrography
; potential vorticity
; western boundary current
; Bay of Bengal
; Indian Ocean
英文摘要: We present evidence that the springtime western boundary current (WBC) in the Bay of Bengal is a continuous northward-flowing current from about 12°N to 17°N, which then separates from the coast at around 18°N. We first revisit a hydrographic data set collected in 1987 from a potential vorticity perspective, and then analyze absolute dynamic height maps from satellite altimeters during the period 2000-2010. The altimetric maps suggest that the mean configuration of the WBC is that of an intense current with two anticyclonic eddies on the offshore side, which are part of the basin-wide anticyclonic circulation. The WBC consistently separates from the coast at around 18°N in all years between 2000 and 2010. The path of the eastward-flowing mean stream after separation appears to be consistent with isolines of f/H and with Ertel's potential vorticity, based on an analysis of the hydrographic data from 1987. © 2013 American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879904802&doi=10.1002%2fgrl.50412&partnerID=40&md5=e6c28b1b8c340c4f14955c0d7eabd487
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6286
Appears in Collections: 气候减缓与适应
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作者单位: School for Marine Science Technology, University of Massachusetts Dartmouth, 200 Mill Rd., Fairhaven, MA 02719, United States
Recommended Citation:
Gangopadhyay A.,Bharat Raj G.N.,Chaudhuri A.H.,et al. On the nature of meandering of the springtime western boundary current in the Bay of Bengal[J]. Geophysical Research Letters,2013-01-01,40(10).