DOI: 10.1016/j.gloplacha.2013.04.006
论文题名: On the relationship between ENSO patterns and winter precipitation over North and Central India
作者: Yadav R.K. ; Ramu D.A. ; Dimri A.P.
刊名: Global and Planetary Change
ISSN: 0921-8279
出版年: 2013
卷: 107 起始页码: 50
结束页码: 58
语种: 英语
英文关键词: ENSO
; Hadley cell
; Sub-tropical westerly jet
; Walker circulation
; Western disturbances
; Winter precipitation
Scopus关键词: ENSO
; Hadley cells
; Walker circulation
; Western disturbances
; Winter precipitation
; Clouds
; Subsidence
; Lasers
; annual variation
; El Nino-Southern Oscillation
; jet
; precipitation (climatology)
; seasonal variation
; subsidence
; teleconnection
; winter
; zonal flow
; India
英文摘要: The inter-annual variability of seasonal precipitation over India strongly depends upon the El Nino-Southern Oscillation (ENSO) phenomenon. The ENSO is anti-correlated with Indian summer monsoon (ISM). While, the Indian north-east monsoon, and the north and central India winter precipitation (NCIWP) are correlated with ENSO. Previous studies have shown that the strength of the ISM-ENSO teleconnection is quite dependent on the zonal position of the El Nino warming. Similarly, in this study it has been found that, the NCIWP depends upon the warming of the eastern Pacific (EP) El Nino rather than the central Pacific (CP) El Nino. The EP El Nino warms the western Indian Ocean during the winter season which intensifies the Hadley cell with its subsidence over central India. The sinking motion over central India shifts and intensifies the sub-tropical westerly jet (SWJ) over northern India. The SWJ intensifies the frequent surges in mid-latitude, called western disturbances (WDs) which, results in excess precipitation over the north and central India. Also, the subsidence over central India leads to lower level cyclonic circulation over central Indian landmass, which converges winds from warm Arabian Sea to north India supplying with abundant moisture for the WDs. © 2013. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84877816057&doi=10.1016%2fj.gloplacha.2013.04.006&partnerID=40&md5=5bf99e276df9aba0c51810d6f4cfb121
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11185
Appears in Collections: 全球变化的国际研究计划
There are no files associated with this item.
作者单位: Indian Institute of Tropical Meteorology, Pune, India
Recommended Citation:
Yadav R.K.,Ramu D.A.,Dimri A.P.. On the relationship between ENSO patterns and winter precipitation over North and Central India[J]. Global and Planetary Change,2013-01-01,107.