Abstract
AbstractIntegrated assessment and management of water resources in a basin can be achieved through the application of distributed hydrological models and subsequent spatial analysis of water balance component characteristics. This study aims to assess the performance of the model SWAT in an Eastern Indian River basin (viz., Upper Kangsabati River basin) using gridded input precipitation data from IMD, WFDEI, and NCEP-CFSR sources. The model performances were observed in the river basin in terms of parameter and predictive uncertainty considering IMD-based SWAT model as the benchmark. All the three SWAT model constructions with different precipitation inputs have given reasonably good performances, but some disparities were found in certain seasons in the river basin during simulation time. The study results also indicate that the spatial variability of different water balance components change with the selection of different precipitation gridded data in SWAT input space.KeywordsIMDSpatial and temporal variabilityRunoffKangsabati
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