Remote Sensing and Geospatial Models to Simulate Land Use and Land Cover and Estimate Water Supply and Demand for Water Balancing in Phuket Island, Thailand

Currently, Phuket Island is facing water scarcity because demand for consumption was approximately 51 million m3/year, whereas supply only about 46 m3/year. Thus, the study of supply, and balancing are important effective resources management. This aims to simulate LULC data using CLUE-S model, estimate SWAT calculate a footprint basis on Island. In addition, tourist separately estimated under normal new conditions (COVID-19 pandemic) fit with actual situation at national international levels. Water balance results consideration ecological requirements suggest that deficit occurs every year dry scenario in conditions. monthly indicates summer season year, both without requirements. Consequently, it can be concluded remote sensing advanced geospatial models provide essential information demand, management, particularly scarcity, future. Additionally, this study’s conceptual framework research workflows assist government agencies examining deficits other areas.