Open AccessEstimation of Water Balance Components of Watersheds in the Manjira River Basin using SWAT Model and GIS
Author(s) -
Akshata Mestry,
Raju Narwade,
Karthik Nagarajan
Publication year - 2020
Publication title -
international journal of engineering and advanced technology
Language(s) - English
Resource type - Journals
ISSN - 2249-8958
DOI - 10.35940/ijeat.c6431.029320
Subject(s) - baseflow , environmental science , swat model , soil and water assessment tool , hydrology (agriculture) , evapotranspiration , water balance , surface runoff , watershed , drainage basin , streamflow , geography , geology , ecology , cartography , geotechnical engineering , machine learning , computer science , biology
This study mainly focus on hydrological behavior of watersheds in The Manjira River basin using soil and water assessment tool (SWAT) and Geographical information system (GIS). The water balance components for watersheds in the Manjira River were determined by using SWAT model and GIS. Determination of these water balance components helps to study direct and indirect factors affecting characteristics of selected watersheds. Manjira River contains total 28 watersheds among them 2 were selected having watershed code as MNJR008 and MNJR011 specified by the Central Ground Water Board. The SWAT input data such as Digital elevation model (DEM), land use and land cover (LU/LC), Soil classification, slope and weather data was collected. Using these inputs in SWAT the different water balancing components such as rainfall, baseflow, surface runoff, evapotranspiration (ET), potential evapotranspiration (PET) and water yield for each watershed were determined. The evaluated data is then validated by Regression analysis, in which two datasets were compared. Simulated rain data from SWAT simulation and observed rain data from Global Weather Data for SWAT was selected for comparison for each watershed.