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Atmospheric response to tropical denuding of vegetation

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Author: Raghava, R C; Laval, K; Sadourny, R; Polcher, J

Advisor: Advisor

Date: 1995

Publisher:
Citation: Atmospheri

Series/Report no.:
Item Type: Article

Keywords: Precipitation; velocity potential; biosphere-atmosphere interaction; atmospheric general circulation

Abstract: Two simulations of atmospheric circulations dunng June, July and August 1988 have been made with LMD Atmospheric General Circulation Model using a classified vegetatmn global cover with and without the tropical vegetation separately. The initial conditmns prepared from ECMWF analysed data were used, while the Reynolds' monthly blended analysis, i e., the blend of in situ, AVHRR satellite and ice data, were taken to prescribe the sea surface temperatures. The global charts of mean monthly precipitation and assocmted velocRy potentmls at 200 and 850 mb have been compared and analysed for June, July and August 1988. The temporal evolutmns of precipitation averaged over a specific region of Indian summer monsoon during its regime from onset to retreat have also been discussed. Consequently, a pronounced impact of tropical vegetation on the precipitation has been observed so as to characterise a forest as one of the local rain inducing agents. Moreover, the tropical vegetation appears to modulate the Indian summer monsoon also for the contributive preopitatlon over India.
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Shankar B. Chavan
Computer Applications Division
Central Library, IIT Delhi
shankar.chavan@library.iitd.ac.in
NDLTD
Shodhganga
NDL
ePrints@IISc
etd@IISc
IR@IIT Bombay
NewsClips @IITD
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