Literature Review
(A.F. Lutz et al, 2014) published a report considering SPHY model and calibrating it with the observed data. Gridded Meteorological Datasets and Hydrological Modelling in the Upper Indus Basin. (A.F. Lutz et al, 2015) elaborated in their report considering HKH Comprehensive Review of Climate Change and the Impacts on Cryosphere, Hydrological Regimes and Glacier Lakes. Studies of Climate change impacts on the upper Indus hydrology they use statistical downscaling technique for climate change scenarios that accounts for changes in precipitation extremes. The analysis is focusing on changes in sources of runoff, changes in seasonality and changes in hydrological extremes (Lutz, A. F., Immerzeel, W. W., Kraaijenbrink, P. D. A., Shrestha, A. B., & Bierkens, M. F. (2016)). (Yassine Bouslihim et al) used SWAT model for somewhat similar study as ours. The work was focusing on the usefulness of a specific model for the study area which will be helpful for the policy makers. Hydrologic Modeling Using SWAT and GIS, Application to Subwatershed Bab-Merzouka (Sebou, Morocco) Journal of Geographic Information System, 2016, 8, 20-27 Published Online February 2016 in SciRes. In hydrological Modeling of the Upper Indus Basin of Hunza River basin they use the SWAT Model combined with a temperature index and elevation band algorithm was applied to the Hunza watershed, the SWAT model was also used to evaluate climate change impact on hydrological regimes. (Garee, K., Chen, X., Bao, A., Wang, Y., & Meng, F. (2017). (TV Reshmidev et al. 2017) worked to evaluate the impact of climate change on the water balance of a catchment in India using ArcSWAT.