Parameters | Spatial techniques employed | Source |
[1] Slope | Spatial analysis ArcGIS (version 10.1) functions | Shuttle Radar Topography Mission (SRTM) 30 m Digital elevation model (DEM). Earth Explorer https://earthexplorer.usgs.gov/ |
[2] Aspect | ||
[3] Plane curvature | ||
[4] Distance to drainage | Spatial hydrologic analyst and Euclidean distance function | |
[5] Relative relief | Grid based (Fishnet tool) elevation range using Zonal statistics tool | |
[6] LULC | Unsupervised classification techniques in ERDAS imagine (version 14)along with field checking. | Landsat 8 OLI & TIRS (Dated on 11 January 2015) Earth Explorer https://earthexplorer.usgs.gov/ |
[7] Geomorphology | Visual interpretation (Landsat 8) along with field checking | |
[8] Vegetation | Spectral enhancement techniques using Normalized difference vegetation index (NDVI) in ERDAS imagine (version 14) along with field checking | |
[9] Geology | Clipped from GIS file (i.e., shapefile of Bangladesh Geology) | https://pubs.usgs.gov/of/1997/ofr-97-470/OF97-470H/linked_filepaths1.htm |