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Assessing Hydrological Response to Changing Climate in the Krishna Basin of India

Kulkarni, BD and Deshpande, NR and Patwardhan, SK and Bansod, SD (2014) Assessing Hydrological Response to Changing Climate in the Krishna Basin of India. Journal of Earth Science & Climatic Change, 5. pp. 1-6.

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Abstract

Impact of climate change on water balance components in the Krishna river basin are investigated using a semidistributed hydrological model namely Soil and Water Assessment Tool (SWAT). The model is calibrated and validated using the measured stream flow and meteorological data for the period (1970-1990) at a single guage outlet. The model has been used further for hydrologic parameter simulations. Daily climate simulations from regional climate model PRECIS (Providing Regional Climates for Impacts Studies) is used as input for running SWAT and monthly hydrologic parameters such as precipitation, surface flow, water yield, Evapotranspiration (ET) and Potential Evapotranspiration (PET) are generated under the assumption of no change in Land Use and Land Cover (LULC) pattern over time. Simulations at 23 sub-basins of the Krishna basin have been obtained for the control runs (1961-1990) and the for two time slices of future scenarios (2011-2040) and (2041-2070). Model projections indicate increase in the annual discharge, surface runoff and base flow in the basin in mid-century.

Item Type: Article
Additional Information: Copyright of this article belongs to OMICS Publishing Group
Uncontrolled Keywords: Climate change; Krishna river basin; SWAT; PRECIS
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 17 Aug 2015 05:16
Last Modified: 17 Aug 2015 05:16
URI: http://moeseprints.incois.gov.in/id/eprint/2744

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