DOI: 10.1007/s00382-014-2085-9
Scopus记录号: 2-s2.0-84906085112
论文题名: A climatological perspective of water vapor at the UTLS region over different global monsoon regions: Observations inferred from the Aura-MLS and reanalysis data
作者: Uma K.N. ; Das S.K. ; Das S.S.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2014
卷: 43, 期: 2017-01-02 起始页码: 407
结束页码: 420
语种: 英语
英文关键词: Aura-MLS
; Monsoon
; Stratospheric water vapor
; UTLS
英文摘要: The Aura-MLS observations of eight years from 2004 to 2011 have been utilized to understand the hydration and the dehydration mechanism over the northern and the southern hemispheric monsoon (NH and SH) regions. The monsoon regions considered are the Asian Summer Monsoon, East Asian Summer Monsoon, Arizona Monsoon (AM), North African Monsoon, South American Monsoon and the Australian Monsoon. The annual cycle of water vapor as expected shows maxima over the NH during June-August and during December-February over the SH. The time taken by the air parcels over the NH monsoon regions is found to be different compared to that over the SH monsoon regions. The analysis shows the concentration of water vapor in the upper troposphere and the lower stratosphere (UTLS) has not changed over these eight years in both the hemispheres during their respective monsoon seasons. The present analysis show different processes viz., direct overshooting convection, horizontal advection, temperature and cirrus clouds in influencing the distribution of water vapor to the UTLS over these different monsoon regions. Analysis of the UTLS water vapor with temperature and ice water content shows that the AM is hydrating the stratosphere compared to all the other monsoon regions where the water vapor is getting dehydrated. Thus it is envisaged that the present results will have important implications in understanding the exchange processes across the tropopause over the different monsoon regions and its role in stratosphere chemistry. © 2014 Springer-Verlag Berlin Heidelberg. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54612
Appears in Collections: 过去全球变化的重建
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作者单位: Space Physics Laboratory, Vikram Sarabhai Space Centre, ISRO-Department of Space, Government of India, Trivandrum, 695022, India; PM and A Division, Indian Institute of Tropical Meteorology, Pune, 411008, India
Recommended Citation:
Uma K.N.,Das S.K.,Das S.S.. A climatological perspective of water vapor at the UTLS region over different global monsoon regions: Observations inferred from the Aura-MLS and reanalysis data[J]. Climate Dynamics,2014-01-01,43(2017-01-02)