Investigation of Seasonal Separation in Mine and Non Mine Water Bodies Using Local Feature Analysis of Landsat 8 OLI/TIRS Images

Surface mining causes drastic land cover and land use changes and it has huge ecological, and environmental impacts. Restoration, reclamation, classification, and monitoring of surface mining region have several research aspects. In classification of surface mining, water bodies in mining regions are detected along with water bodies in non mining areas using various spectral information of satellite imagery. Water bodies in mining region have distinct characteristic. Detection of these distinct characteristics, and separation of mine, and non mine water body areas are the motivation of this paper. Normalized Difference Water Index (NDWI) is a widely practiced water detection technique which is used here. Detection of water bodies from NDWI may falsely detect few bare soil regions. Hence, in this work, bare soil regions are detected by Bare soil Index (BI) and further removed from the water map. The modified water map is analyzed by connected component computation and further mine, and non mine water bodies are separated by using the concept of clay mineral ratio.