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AUTHOR(S): Anusha Sankara, Tripathi M. P., Mani A.
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ABSTRACT There is a rapid change in land use/cover which drastically affects on the environment, through the flow of water, energy, greenhouse gases from the land to the atmosphere, deforestation, etc. An attempt has been made to study the temporal changes in land use/cover for the three periods viz. 2011 and 2020 to identify the changes in the Pennar sub-basin, Anantapur district, Andhra Pradesh. The study was carried out using Erdas Imagine 2015 software with Landsat 8 and Landsat 5 imageries of 2020 and 2011. The study area was categorized into seven classes which are reservoirs, water bodies, agricultural lands, barren lands, fallow lands, built-up lands, and forests. Maximum likelihood classification of supervised classification was used in the present research. The accuracy assessment was carried out by Kappa coefficient statistics of the years 2011 and 2020. The results indicate the annual rate of change (ARC) from 2011 to 2020 is on a rising trend for agricultural lands, built-up, barren lands, forest and water bodies with 9.49 km2/yr (11.97%), 0.47 km2/yr (1.63%), 1.09 km2/yr (7.15%), 1.30 km2/yr (2.17%) and 0.16 km2/yr (0.59%), respectively. Furthermore, it was in decreasing trend for reservoir and fallow land 0.07 km2/yr (0.73%) and 12.47 km2/yr (6.09%). The kappa coefficient statistics of classified supervised imageries for 2011 and 2020 were 0.89 & 0.82, respectively which shows the classified imageries are almost perfect [13]. |
KEYWORDS GIS, Land use/cover change, Remote sensing data, Kappa Statistics |
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Cite this paper Anusha Sankara, Tripathi M. P., Mani A.. (2024) Change Detection in Land Use/Cover of Pennar Sub basin in Andhra Pradesh using Satellite Data and GIS. International Journal of Environmental Science, 9, 37-45 |
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