Multimodel assessment of water budget in Indian sub-continental river basins

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dc.contributor.author Kushwaha, Anuj Prakash
dc.contributor.author Tiwari, Amar Deep
dc.contributor.author Dangar, Swarup
dc.contributor.author Shah, Harsh
dc.contributor.author Mahto, Shanti Shwarup
dc.contributor.author Mishra, Vimal
dc.coverage.spatial United States of America
dc.date.accessioned 2021-10-14T13:14:54Z
dc.date.available 2021-10-14T13:14:54Z
dc.date.issued 2021-12
dc.identifier.citation Kushwaha, Anuj Prakash; Tiwari, Amar Deep; Dangar, Swarup; Shah, Harsh; Mahto, Shanti Shwarup and Mishra, Vimal, "Multimodel assessment of water budget in Indian sub-continental river basins", Journal of Hydrology, DOI: 10.1016/j.jhydrol.2021.126977, vol. 603, Dec. 2021. en_US
dc.identifier.issn 0022-1694
dc.identifier.uri https://doi.org/10.1016/j.jhydrol.2021.126977
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/6970
dc.description.abstract Estimation of the water budget is essential for water resources and environmental management. However, a reliable assessment of the water budget and water yield for the Indian sub-continental river basins has been lacking. We used 0.25� gridded meteorological observations and five hydrological models to construct water budget estimates for the Indian sub-continental river basins for the 1951�2016 period. The hydrological models (i.e. VIC, CLM, Noah-MP, H08, and CWatM) were calibrated against observed streamflow and evaluated for evapotranspiration (ET) and soil moisture. Considerable uncertainty in the water budget components (ET and total runoff) was found due to the process representation and parameterization of hydrological models. Multimodel ensemble mean of the five hydrological models performed better than individual models for most basins for water budget components. West coast, Brahmaputra, and Brahmani are the three wettest river basins. At the same time, Sabarmati, Indus, and Pennar are the three driest basins in terms of mean annual precipitation in the Indian sub-continent. The three transboundary river basins (Brahmaputra, Ganga, and Indus) have the highest water yield of 731.9 (+-50.2), 582.4 (+-89.4), and 231.1(+-71) km3, respectively. The Budyko framework showed that only two basins (West Coast and the Brahmaputra) over the Indian sub-continent fall under the energy-limited (relatively lower atmospheric water demands) conditions. In comparison, the other sixteen river basins are in water-limited (higher atmospheric water demands) condition. Our findings have implications for water resources planning and management in one of the world's most populated regions.
dc.description.statementofresponsibility by Anuj Prakash Kushwaha, Amar Deep Tiwari, SwarupDangar, Harsh Shah, Shanti Shwarup Mahto and Vimal Mishraa
dc.format.extent vol. 603
dc.language.iso en_US en_US
dc.publisher Elsevier en_US
dc.subject Multimodel en_US
dc.subject Water-budget en_US
dc.subject Streamflow en_US
dc.subject Intercomparison en_US
dc.subject Water yield en_US
dc.title Multimodel assessment of water budget in Indian sub-continental river basins en_US
dc.type Article en_US
dc.relation.journal Journal of Hydrology


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