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Precipitation characteristics and moisture source regions on Mt. Everest in the Khumbu, Nepal

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journal contribution
posted on 17.12.2020, 16:02 by L Baker Perry, Tom Matthews, Heather Guy, Inka Koch, Arbindra Khadka, Aurora Elmore, Dibas Shrestha, Subash Tuladhar, Saraju Baidya, Sunny Maharjan, Patrick Wagnon, Deepak Aryal, Anton Seimon, Ananta Gajurel, Paul Mayewski
Precipitation is critical to the water towers of the Hindu Kush-Himalaya-Karakoram region, exerting an important control on glacier mass balance and the water resources for 1.65 billion people. As hydroclimatic extremes and water stress have emerged as key hazards in the context of climate change, Nepal’s Khumbu region overlaps key vulnerabilities. Here we investigate the region’s precipitation characteristics and moisture sources through analysis of data from a new high-altitude network of automatic weather stations, which allow for a more complete understanding of the climatological precipitation data that are critical information for local communities in the Khumbu region, visitors, and downstream populations. Our findings demonstrate that the northern Bay of Bengal is potentially an important moisture source during the monsoon period (June to August) and that westerly trajectories over land predominate for precipitation events during the post-monsoon, winter, and pre-monsoon seasons.

History

School

  • Social Sciences and Humanities

Department

  • Geography and Environment

Published in

One Earth

Volume

3

Issue

5

Pages

594 - 607

Publisher

Elsevier

Version

VoR (Version of Record)

Rights holder

© The Authors

Publisher statement

This is an Open Access Article. It is published by Elsevier under the Creative Commons Attribution 4.0 International Licence (CC BY 4.0). Full details of this licence are available at: https://creativecommons.org/licenses/by/4.0/

Acceptance date

26/10/2020

Publication date

2020-11-20

Copyright date

2020

ISSN

2590-3330

Language

en

Depositor

Dr Tom Matthews Deposit date: 28 October 2020