Water bodies delineation and change detection using gis and remote sensing: a case study in Pasir Puteh, Kelantan

Water bodies are vital to the survival of ecosystems and human livelihoods, hence it is imperative to accurately delineate and monitor them in order to manage resources effectively. This study uses remote sensing and geographic information systems (GIS) to identify water bodies and track changes over time in Pasir Puteh, Kelantan. A thorough examination of the dynamics of water bodies is made possible by the combination of Landsat satellite imagery spanning several years.Water bodies are first identified by applying image classification techniques that are verified against high-resolution imagery and ground truth data. Change detection analysis then finds differences in the form and extent of water bodies between the baseline year and the years that follow. The results offer significant perspectives to local government officials and interested parties concerning the management of water resources, supporting the design of sustainable development and environmental preservation initiatives. This study emphasises how crucial GIS and remote sensing technologies are to improving spatial analysis skills for managing water resources in changing terrain such as Pasir Puteh, Kelantan. The overall area of water bodies decreased by about 1.27%, from 10.5498 km² in 2014 to 9.2349 km² in 2023, according to the results. This decrease is a reflection of both possible effects on nearby water resources and continuous environmental changes.