IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Water resources and hydroinformatics : Evaluating potential impact of climate change on hydrological variables inupper godavari river sub b...
Evaluating potential impact of climate change on hydrological variables inupper godavari river sub basin, india using swat
Author : SARAF VIDYA R.1 AND REGULWAR D.G.2
ABSTRACT
Throughout the world, climate change impacts are the main concern for sustainability of water management and water use
activities. Climate changes alter regional hydrologic conditions and results in a variety of impacts on water resource
systems. The goal of this study is to investigate the potential impact of climate change on runoff generation at upper
Godavari River sub-basin watershed located in Maharashtra State, India. The GCM derived scenarios (HadCM3 A2 & B2,
SRES emission scenarios) were used for the climate projection. The statistical Downscaling Model (SDSM) was used to
generate future possible local meteorological variables in the study area. Downscaled and projected precipitation and
temperature variables were used to simulate runoff for current and future climate scenarios using the Soil and Water
Assessment Tool (SWAT) model. The time series generated by GCM of HadCM3, A2 and B2 and Statistical Downscaling
Model (SDSM) indicate a significant increasing trend in maximum and minimum temperature values and a slight
decreasing trend in precipitation for both A2 and B2 emission scenarios in sub-basin for all three bench mark periods
(2020s, 2050s and 2080s). The result shows overall decreasing trend in annual and monthly runoff in the study area, in
three benchmark periods in the future. The results of this work would be of great benefit to the design of economic and
social development planning in the study area.
File Size : 1,124,027 bytes
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Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water resources and hydroinformatics
Date Published : 19/08/2015
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