ASSESSMENT OF RIVER WATER QUALITY PARAMETERS USING SATELLITE DATA

Abstract

The assessment of the river quality is a tedious task and takes a long time to calculate the river quality via the traditional methods. There is a chance of inaccuracy in the results due to several factors. With the use of satellite imaging methods, we can conveniently monitor and assess the river water quality and can easily cover the whole river in a single day. This study was made to calculate different water quality parameters in the Yamuna River. 27 different locations starting from Hathnikund Barrage to Hathi Ghat were covered. The parameters such as land surface temperature, pH, salinity, turbidity, chlorophyll, suspended matters, dissolved oxygen (DO), dissolved organic matter (DOM), etc were calculated using different satellite data and integrated with the ground-based data using the ArcGIS. Considering the Landsat satellite data to process the visualization of the area using the False Colour (Vegetative Analysis) and the Natural Colour composite using the combination of 6,5,4 and 4,3,2 respectively. The Sentinel-2 satellite data is also considered for visualization of the area using the False Colour and the Natural Colour composite using the combination of 8,4,3 and 4,3,2 respectively and the calculation of some specific parameters’ formulas using the raster calculator in the ArcGIS software. The integration of satellite and ground-based data using ArcGIS provides a comprehensive understanding of water quality parameters and helps identify areas that require attention for water quality management. The study emphasizes the importance of collaboration and data sharing among researchers to promote the development of more robust models for estimating water quality parameters.