DOI: 10.1002/grl.50519
论文题名: Is the trend in TEJ reversing over the Indian subcontinent?
作者: Venkat Ratnam M. ; Krishna Murthy B.V. ; Jayaraman A.
刊名: Geophysical Research Letters
ISSN: 0094-8828
EISSN: 1944-8559
出版年: 2013
卷: 40, 期: 13 起始页码: 3446
结束页码: 3449
语种: 英语
英文关键词: climate change
; Indian summer monsoon
; long-term trends
; tropical cyclone systems
; tropical easterly jet
Scopus关键词: High-resolution measurements
; Indian summer monsoon
; Long-term trend
; Precipitation patterns
; Tropical cyclone
; Tropical Easterly Jet
; Tropical easterly jets
; Tropospheric warming
; Atmospheric thermodynamics
; Climate change
; Hurricanes
; Ozone layer
; Storms
; Wind
; climate change
; climate modeling
; jet stream
; long-term change
; monsoon
; precipitation (climatology)
; stratosphere
; summer
; tropical cyclone
; tropical meteorology
; troposphere
; Bay of Bengal
; Indian Ocean
英文摘要: Indian Summer Monsoon (ISM) is mainly characterized by seasonal wind reversal in low level jet stream and tropical easterly jet (TEJ) among several other elements of monsoon systems. TEJ is observed in general between 100 and 150 hPa during June-September over the Indian region and its strength is directly related to the monsoon rainfall. In the context of changing climate, large reduction in its extent and weakening of its strength were reported. Using high resolution measurements, we report here the observation of a sharp strengthening of the TEJ during the recent warmest decade (2001-2010), reaching its 1970s value. We also show that this change is reflected in the tropical cyclone systems and finally on the precipitation patterns over the Indian region as they are interlinked. We attribute this unusual change partly to the change in the circulation due to the tropospheric warming and lower stratospheric ozone recovery. Key Points Showed that Indian Summer Monsoon circulation has changed in recent past Its effect on number of cyclones over Bay of Bengal is also going to change ISM modelers/forecasters need to consider these issues in future modeling ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880818138&doi=10.1002%2fgrl.50519&partnerID=40&md5=28edac302dd6fb079fa43b16f3e4cad6
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6092
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: National Atmospheric Research Laboratory (NARL), Gadanki, Andhra Pradesh 517 112, India
Recommended Citation:
Venkat Ratnam M.,Krishna Murthy B.V.,Jayaraman A.. Is the trend in TEJ reversing over the Indian subcontinent?[J]. Geophysical Research Letters,2013-01-01,40(13).