The flood hazard maps, flood risk maps and designated flood areas were determined based on the following sources:
- Water levels for flood events and their probability of occurrence
- ATKIS® DGM – Digitales Geländemodell (DTM, Digital Terrain Model)
- Gewässervermessungen (hydrological measurements)
- Gewässerkarte (Map of Bodies of Water)
- Protected Areas by Nature Conservation Legislation (incl. Natura 2000) 2019
- Water Conservation Districts 2009
- Denkmalbestandskartierung im Landesdenkmalamt Berlin (Monument inventory mapping by the Berlin Heritage Authority)
- 06.01 Actual Use of Built-Up Areas/ 06.02 Inventory of Green and Open Spaces/ 06.01.1 Actual Use/ 06.02.1 Actual Use and Vegetation Cover
For detailed definitions of the individual sources, please refer to the studies referenced in Table 2.