This is a Preprint and has not been peer reviewed. The published version of this Preprint is available: https://doi.org/10.1029/2020WR027883. This is version 2 of this Preprint.
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Abstract
The Monsoon Asia region is home to ten of the world’s biggest rivers, supporting the lives of 1.7 billion people who rely on streamflow for water, energy, and food. Yet, a synoptic understanding of multi-centennial streamflow variability for this region is lacking. Here we produce the first large scale streamflow reconstruction over Monsoon Asia (63 stations in 16 countries), using a novel climate-informed dynamic algorithm that is skillful over 92% of the gauging stations. We show that streamflow in Monsoon Asia is spatially coherent, owing to common drivers from the Pacific, Indian, and Atlantic Oceans that exert their greatest influence over the Mekong and Chao Phraya basins. This work increases our understanding of streamflow variability over Monsoon Asia. We suggest that future water management in the region should be coordinated between basins, taking into account the states of the oceans.
DOI
https://doi.org/10.31223/osf.io/5tg68
Subjects
Climate, Earth Sciences, Hydrology, Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics
Keywords
ENSO, Chao Phraya, Mekong, Monsoon Asia, Pacific Decadal Variability, streamflow reconstruction
Dates
Published: 2019-11-13 15:34
Last Updated: 2019-11-21 22:03
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