Table 1 The types, sources and quality of RUSLE input data used in this study
Data type | Data source | Data quality |
|---|---|---|
Landsat 8 satellite image | Downloaded from USGS (http://earthexplorer.usgs.gov) | 30*30 m |
ASTER GDEM | Downloaded from USGS (http://earthexplorer.usgs.gov) | 1 arc–second |
Soil map | Collected from ministry of water, irrigation and energy of Ethiopia | 1:250,000 |
Rainfall data | Collected from national meteorology agency of Ethiopia | 20 years monthly data |
Topo-sheet map | Collected from Ethiopian geospatial information agency | 1:50,000 |
GPS points | Field data collected using GARMIN VISTA HCx GPS | – |