An appraisal of precipitation distribution in the high-altitude catchments of the Indus basin

The Science of the Total Environment
Zakir Hussain DahriPavel Kabat

Abstract

Scarcity of in-situ observations coupled with high orographic influences has prevented a comprehensive assessment of precipitation distribution in the high-altitude catchments of Indus basin. Available data are generally fragmented and scattered with different organizations and mostly cover the valleys. Here, we combine most of the available station data with the indirect precipitation estimates at the accumulation zones of major glaciers to analyse altitudinal dependency of precipitation in the high-altitude Indus basin. The available observations signified the importance of orography in each sub-hydrological basin but could not infer an accurate distribution of precipitation with altitude. We used Kriging with External Drift (KED) interpolation scheme with elevation as a predictor to appraise spatiotemporal distribution of mean monthly, seasonal and annual precipitation for the period of 1998-2012. The KED-based annual precipitation estimates are verified by the corresponding basin-wide observed specific runoffs, which show good agreement. In contrast to earlier studies, our estimates reveal substantially higher precipitation in most of the sub-basins indicating two distinct rainfall maxima; 1st along southern and lower most ...Continue Reading

References

Jul 25, 2008·Nature·Jane Qiu
Feb 10, 2012·Nature·Thomas JacobSean Swenson
Apr 21, 2012·Science·T BolchM Stoffel
May 29, 2012·The Science of the Total Environment·Camilla MathisonT Yasunari

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Citations

Sep 15, 2017·Nature·P D A KraaijenbrinkW W Immerzeel
May 10, 2020·The Science of the Total Environment·Vishal SinghPushpendra Kumar Singh
Mar 28, 2021·The Science of the Total Environment·Dagmar BrombierstäudlMarcus Nüsser
May 3, 2021·The Science of the Total Environment·Marcus Nüsser, Susanne Schmidt
Jun 18, 2021·The Science of the Total Environment·A P Dimri
Jan 18, 2021·The Science of the Total Environment·Zakir Hussain DahriPavel Kabat

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