alexa Assessing Hydrological Response to Changing Climate in
ISSN: 2157-7617

Journal of Earth Science & Climatic Change
Open Access

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Research Article

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

Kulkarni BD, Deshpande NR*, Patwardhan SK and Bansod SD
Indian Institute of Tropical Meteorology, Pune, India
Corresponding Author : Deshpande NR
Indian Institute of Tropical Meteorology
Pune 411008, India
Tel: +91 20 25904541
E-mail: [email protected]
Received June 24, 2014; Accepted July 29, 2014; Published August 10, 2014
Citation:Kulkarni BD, Deshpande NR, Patwardhan SK, Bansod SD (2014) Assessing Hydrological Response to Changing Climate in the Krishna Basin of India. J Earth Sci Clim Change 5: 211doi: 10.4172/2157-7617.1000211
Copyright: © 2014 Kulkarni BD, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
 

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.

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