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The Formation of a Dry-Belt in the North Side of Central Himalaya Mountains

Journal article
Authors Yan Wang
Kun Yang
Xu Zhou
Binbin Wang
Deliang Chen
Hui Lu
Changgui Lin
Fuqing Zhang
Published in Geophysical Research Letters
Volume 46
Pages 2993-3000
ISSN 00948276
Publication year 2019
Published at Department of Earth Sciences
Pages 2993-3000
Language en
Links https://doi.org/10.1029/2018GL08106...
Subject categories Earth and Related Environmental Sciences

Abstract

©2019. American Geophysical Union. All Rights Reserved. South Asian monsoon crosses the Himalayan Mountains (HMs) and brings moisture for precipitations in the South Tibetan Plateau. A distinct dry-belt was found in the north of the central HM region, where there are the highest and steepest mountains in the world. Through in situ and remote-sensing observations and convection-permitting numerical experiments, the current study demonstrates that the formation of the dry-belt is mainly due to the depletion of water vapor when the monsoonal flow climbs the steep south slope of the HMs. The foehn phenomenon is notable over the north slope of the HMs, but the hot and dry downslope flow does not significantly reduce the amount of the precipitation; instead, it can delay the peak of the diurnal precipitation in the north side of the HMs.

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