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NDCWWC Journal (A Half Yearly Journal of New Delhi Centre of WWC)
Year : 2013, Volume : 2, Issue : 2
First page : ( 18) Last page : ( 20)
Print ISSN : 2278-8395. Online ISSN : 2278-8409.

Using stable isotope (δD) of atmospheric water vapour in South West Monsoon Studies

Krishan Gopal*, Rao M.S.*, Kumar C.P.*, Thayyen Renoj J.*, Kumar Bhishm**

*National Institute of Hydrology, Roorkee, India

**Isotope Hydrology Section, International Atomic Energy Agency, Vienna, Austria

Online published on 27 January, 2014.

Abstract

In the present paper, stable isotope (δD) of atmospheric water vapour collected during April, 2010 to December, 2010, is used to identify spatial correlation in moisture variability for southwest monsoon studies between two stations: one in Indo-Gangetic plains-Roorkee and other in sub-Himalayan Region-Jammu. The observation of Seasonal Effect in isotopes of atmospheric water vapour is the first of its kind of observation in the Roorkee and Jammu. The isotopic composition of water vapours have shown a good correlation in time domain in inferring monsoon signal which opens up the possibility to use isotopes in air moisture for monsoon studies.

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Keywords

Stable isotopes, atmospheric water vapour, southwest monsoon, Roorkee, Jammu.

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