Climate change variability assessment on water resources by SWAT model: A Review

Abstract

Water is a renewable resource for the Sustaining Ecosystem. Rapid industrialization and population impacts the climate. The imbalance of Climate changes over various geographical regions affects the hydrological and morphological behaviour of water resources. The Water balances of the system are analysed via the SWAT Model (Soil and Water Assessment Tool). By simulating and predicting future hydrological behaviour with different scenarios using many climatological models. Using weather data and predicting future hydrological outputs such as Runoff, Temperature, Base flow, groundwater flow, AET etc. in 21st century. Model is calibrated and validated using statistical methods. Results of various modelling Researches in field of SWAT and their major findings are discussed in this review paper. The future Scope of SWAT modelling and its Applications are also recommended. Forty papers are discussed in tabular form with their results and their future improvements were concluded. This paper fulfills a need for precise and quick reviews of recent researches in field of SWAT modelling with climate change on water resources. This will help researchers, academician’s insights into precise climate change impacts on water resources in 21st Century. Necessary steps to be adopted for their successful extreme repercussions of climate change and measures adopted for managing the severe damages to our Ecosystem with sustainable development goals in new millennium are discussed.