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

Yan Wang, Kun Yang, Xu Zhou, Binbin Wang, Deliang Chen, Hui Lu, Changgui Lin, Fuqing Zhang

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Abstract

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.

Original languageEnglish (US)
Pages (from-to)2993-3000
Number of pages8
JournalGeophysical Research Letters
Volume46
Issue number5
DOIs
StatePublished - Mar 16 2019

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Earth and Planetary Sciences(all)

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    Wang, Y., Yang, K., Zhou, X., Wang, B., Chen, D., Lu, H., Lin, C., & Zhang, F. (2019). The Formation of a Dry-Belt in the North Side of Central Himalaya Mountains. Geophysical Research Letters, 46(5), 2993-3000. https://doi.org/10.1029/2018GL081061