The hydrological model requires both spatial and temporal data as input. The temporal data are meteorological (such as temperature, solar radiation, relative humidity, and wind speed) and hydrological observation data (discharge). The meteorological data were collected from the Climate Forecast System Reanalysis (CFSR) reanalysis product. These data were downloaded from https://globalweather.tamu.edu/. The daily discharge data at the Kasinagar gauging station was downloaded from https://indiawris.gov.in/wris/. The spatial information includes the digital elevation model, land use and cover, and soil characteristics. Table 2 describes the spatial, weather, and discharge input data used in developing the SWAT model.
Data sources and description for the spatial, meteorological and hydrological inputs for the SWAT model
| Data type . | Scale/year . | Source . |
|---|---|---|
| DEM | 30 m × 30 m (2014) | Shuttle Radar Topography Mission (SRTM) of USGS (https://earthexplorer.usgs.gov/) |
| LULC | 500 m (2000) | GIAM-IWMI (http://waterdata.iwmi.org/applications/giam2000/giam.php) |
| Soil | 1:1,500,000 (2003) | Food and Agriculture Organization (FAO) http://www.fao.org/soils-portal/soil-survey/soil-maps-and-databases/en/ |
| Temperature | 1° × 1°; Daily (1969–2018) | Indian Metrological Department (IMD), http://www.imdpune.gov.in/ |
| Solar Radiation, Relative Humidity, Wind Speed | 0.31°; Daily (1979–2014) | Climate Forecasting System Reanalysis (CFSR) https://globalweather.tamu.edu |
| River Discharge | Point data at Khasinagar; Daily (2000–2012) | Central Water Commission (CWC) (www.india-wris.nrsc.gov.in/) |
| Data type . | Scale/year . | Source . |
|---|---|---|
| DEM | 30 m × 30 m (2014) | Shuttle Radar Topography Mission (SRTM) of USGS (https://earthexplorer.usgs.gov/) |
| LULC | 500 m (2000) | GIAM-IWMI (http://waterdata.iwmi.org/applications/giam2000/giam.php) |
| Soil | 1:1,500,000 (2003) | Food and Agriculture Organization (FAO) http://www.fao.org/soils-portal/soil-survey/soil-maps-and-databases/en/ |
| Temperature | 1° × 1°; Daily (1969–2018) | Indian Metrological Department (IMD), http://www.imdpune.gov.in/ |
| Solar Radiation, Relative Humidity, Wind Speed | 0.31°; Daily (1979–2014) | Climate Forecasting System Reanalysis (CFSR) https://globalweather.tamu.edu |
| River Discharge | Point data at Khasinagar; Daily (2000–2012) | Central Water Commission (CWC) (www.india-wris.nrsc.gov.in/) |