Water Resources Data Center / WRDC - Indonesia One Map (BIG Geoportal)
Indonesia's One Map geoportal (Geospatial Information Agency, BIG) sharing thematic water layers: watershed (DAS) maps, groundwater and hydrogeology maps, water availability, rainfall, dam and irrigation district maps for the whole archipelago.
onemap.big.go.id
At a glance
- Region
- Indonesia (Asia)
- Coverage
- Indonesia
- Access
- Free
- Category
- Government
- Last updated
- 2026
What's inside
- Watershed
- Groundwater
- Hydrogeology
- Rainfall
Terms explained
What you can do with it
Typical work that data of this type supports.
- 01
Trend hotspots
Find where water tables are falling year after year.
Because it has: Groundwater
- 02
Recharge planning
Site recharge structures and new borewells with evidence.
- 03
Design storms
Build rainfall intensity-duration-frequency curves for drainage design.
Because it has: Rainfall
Where AI adds value
Ideas for machine learning and AI agents built on this kind of data.
- 01
Gap filling
Rebuild missing well readings from neighbours, rainfall and season.
- 02
Level forecasts
Forecast pre- and post-monsoon levels well by well.
- 03
Downscaling
Turn coarse rainfall grids into field or ward scale estimates.
Related water data
- BNPB Geoportal Data Bencana IndonesiaAsia | Free
- India Water Resources Open Data - Datameet/CIS Open Water Data compendiumAsia | Free
- SIH3 Bengawan Solo - Hydrology Information System (BBWS Bengawan Solo)Asia | Free
- SIH3 East Java (Jawa Timur) Hydrology PortalAsia | Free
- SIH3 North Sulawesi (Sulawesi Utara) Hydrology PortalAsia | Free
- Cambodia Ministry of Water Resources and Meteorology (MOWRAM)Asia | Free
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