A comprehensive analysis of surface water changes in Dau Tieng Lake, Vietnam, across dry and wet seasons

Taznin Naher 1, Md Nurul Nabir 2 and Md Nurul Kadir 3, *

1 Hydraulic Research Directorate, River Research Institute of Bangladesh, Harukandi, Faridpur, Bangladesh.
2 Department of Geography and Environmental Science, National University, Bangladesh.
3 Department of Agricultural Engineering, She-e-Bangla Agricultural University, Dhaka Bangladesh.
 
Research Article
GSC Advanced Research and Reviews, 2024, 18(01), 138–149.
Article DOI: 10.30574/gscarr.2024.18.1.0008
Publication history: 
Received on 27 November 2023; revised on 06 January 2024; accepted on 08 January 2024
 
Abstract: 
This study investigates the seasonal dynamics of Dau Tieng Lake near Tay Ninh, Vietnam, employing remote sensing technology, specifically the Modified Normalized Difference Water Index (MNDWI) and Normalized Difference Vegetation Index (NDVI). Focused on the period from 2016 to 2020, the research aims to detect changes in the water surface area during dry and wet seasons. As the largest reservoir for water supply and irrigation in Vietnam, Dau Tieng Lake faces operational challenges due to seasonal rainfall variations and increasing water demands. The results reveal significant differences in water body areas between wet and dry seasons, with MNDWI proving more effective in capturing these variations compared to NDVI. The study concludes that the seasonal change in Dau Tieng Lake is 21.76 km2 (NDVI) and 25.55 km2 (MNDWI), emphasizing the latter's superiority in accurately detecting water body changes. These findings contribute valuable insights for improved reservoir management and sustainable utilization of water resources in the region.
 
Keywords: 
Remote Sensing; Seasonal Dynamics; MNDWI; NDVI; Water Surface Change
 
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