dataset · Global
GFPLAIN250m: Global 250m Floodplain Dataset
The GFPLAIN250m includes raster data of Earth's floodplains identified using a geomorphic approach presented in Nardi et al. (2006, 2018). The 250m floodplain dataset is derived by processing the NASA SRTM Digital Elevation model gathered from [http://srtm.csi.cgiar.org/](http://srtm.csi.cgiar.org/), and in particular the 250-m SRTM version 4.1 DTM. The coding used for each continent and additional information are detailed in the metadata included in the GFPLAIN250m data repository. The elevatio
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Licence: CC-BY-4.0
Evidence quality: 37
Listed in gee public catalogue API on 2026-10-16; relevance/value screened (haiku).
Metadata checked: 2026-10-14T13:20:00.000Z
What's in it
- Data offered docs-verified
- floodplain extent raster (single 'flood' band)
- Coverage docs-verified
- Global, excluding deserts with low water availability and ice-covered regions · Catalogue dataset availability 2018-11-11 to 2018-11-12; no temporal series documented
- Resolution docs-verified
- 250 m (all bands)
- Formats docs-verified
- Google Earth Engine ee.Image (raster)
- Access docs-verified
- Google Earth Engine registration required; Earth Engine free for research, education and nonprofit use (commercial/consultancy terms not stated in docs); dataset licence CC-BY-4.0
Useful for
- Use cases llm-inferred
- Regional floodplain extent screening for FRA context in catchments above 1000 km² · Large-scale screening of floodplain and wetland habitat at risk for ecological constraint mapping · Combining floodplain extent with settlement datasets for high-level flood exposure screening
- Audience llm-inferred
- flood consultants · hydrologists · GIS analysts · ecologists · planners
Limitations
- Constraints llm-inferred
- Documented as fit only for river basins with contributing area greater than 1000 km² · Not applicable to deserts or ice-covered regions · Derived from 250 m SRTM v4.1 DEM, so inherits SRTM elevation errors · Requires Earth Engine access; commercial use terms need checking before consultancy use · Catalogue bounding box runs from -56 to 60 latitude, so high-latitude areas are outside coverage · Metadata description is truncated in the catalogue entry; the full methods are in the external metadata repository
Evidence
- ee.Image('IAHS/GFPLAIN250/v0')
- https://developers.google.com/earth-engine/datasets/catalog/IAHS_GFPLAIN250_v0
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.