Abstract:
In world, view countries are developed with all the inventions and scientific technologies even though lagging with the unpredictable climatic changes and natural disasters. The main objective of this paper is to quantify the extracted surface water bodies for different time series in the Adyar watershed using geospatial techniques and calculate the area of surface water bodies individually. The major causes which are influenced by the changes over the water bodies are analyzed into two different categories such as 1. Natural Factors & 2. Anthropogenic Factors in detail. Using the traditional method the manual toposheet digitization and the remote sensing datasets are downloaded for the following years 1990, 2000, 2010 & 2020. Using the preprocessed datasets the indices maps are derived for the analysis and the accuracy assessment is evaluated. Due to the impacts of the major causes factors three different problems raised for the waterbodies which are 1. Water bodies are reduced its quantity, 2. Water bodies are contaminated and not in use, 3. Water bodies are encroached on and lavished in the region. As a result of rapid urbanization in the watershed, the eastern part of the coastal region had made drastic changes in the waterbodies, and many lakes are encroached on and disappeared due to different factors, and both of the adjacent sides of the water bodies are occupied which are founded for the different time series is caused the ecological and environmental disturbances. it may lead to natural disasters such as floods and droughts in the region. The suggestion of this study is to implement the planning for sustainable development of water usage is highly recommended for conserving the waterbodies and maintaining the socio-ecological balance in the region. This study is helpful for researchers and students in pursuing waterbody analysis, disaster management, and sustainable development.
