| Source Data | ||
| Type of Data | Data source | Purpose |
| 1:50000 Colombo maps (sheet 66) | Survey Department | Identification of LULC changes |
| Satellite image and Arial Photograph | SLLR and DC | Identification of LULC changes |
| Landsat 7 images | USGS/NASA | Detection of LST |
| Landsat 8 images | USGS/NASA | Detection of LST |
| Population and Housing | DCS | To data analyze |
| Water Quality Data | SLLR and DC | To data analyze |
| Soil quality Data | SLLR and DC | To data analyze |
| Statistic Data | UDA | To data analyze |