| Data type | Scale | Source | Description/properties |
| Digital Elevation Map (DEM)-TIF | Resolution 10 m × 10 m | USGS Earth explorer | Elevation, slope, channel lengths |
| Soils-TIF | Japan 1:50,000 | Japanese soil inventory | 2017 Version |
| Land Use-TIF | 10 m resolution | Jaxa, Japan | 2018-2020 version |
| Weather Information-CSV | Daily Precipitation (mm), Max & Min Temperatures (˚C), Relative humidity (%), Wind speed (m/s) and Solar radiation (Mj/s2) | Isahaya City, Omura (Nagasaki Airport) and Nagasaki Met. stations (Japan Meteorological Agency Website) | Up to date data with no gaps Jan. 2013-Jul. 2020. D |
| Honmyo River Discharge (Upstream at Urayama St.) | Hourly Water level data with H-Q equation (Q = A(H + B)2) for specific periods of time. Where A and B are constants | Ministry of Land, infrastructure, transport, and tourism-water resource department | Gauged data from Jan. 2016-Jul. 2021 |
| River Discharge for the ungauged basins | 18 mean flow rate data (m3/s) at each river discharge point | Use of electromagnetic current meter and cross section at discharge point | Measured between March-July 2021 |