Water Body Mapping of Chennai Region Using GIS and Remote Sensing

Abstract

This venture depicts the improvement of water body mapping (WBM), utilizing a computerized calculation to process Landsat pictures from the United States Geological Survey (USGS) database. We utilized Landsat 2, 3, 5, 8 band pictures so as to depict a precise water body map, with no normal unsettling influence. Perpetual water bodies were recognized from fleeting water-shrouded regions by computing the recurrence of water body presence from covering, multi-transient, Landsat scenes. By examining the recurrence of water body presence, the WBM isolates stream channels and floodplains more obviously than past examinations. This recommends the utilization of multi-transient pictures is as significant as examination at higher goals for worldwide water body mapping. We screen the Chennai and adjacent surface water region changes from 1977 to 2016. Three scenes from the Multispectral Scanner System (MSS), three scenes from the Thematic Mapper (TM), and three scenes from the Operational Land Imager (OLI) and Thermal Infrared Sensor (TIRS) remote detecting information of Landsat satellites, the standardized distinctive water file (NDWI), standardized diverse vegetation record (NDVI), and NIR technique were utilized to quantitatively gauge the Chennai buffer surface water territory during the 1970s, 1980s, 2000s, and 2010s, separately. The examination closed the estimation of human exercises sway on surface water spatiotemporal dissemination. The point was to decide the exactness of utilizing basic computerized picture handling strategies to delineate water bodies with Landsat 2(MSS), Landsat 3(MSS), Landsat 5(MSS/TM), and Landsat 8(OLI/TIRS) information.