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Gridded flood frequency estimates for Kerala, India

This is a set of six ASCII grids describing the peak flood event for six return periods (2-100 years) at each point of the river network in the state of Kerala, India. Estimates were derived in a similar way to the Flood Estimation Handbook* approach. The data is measured in cubic metres per second, and is given on an unprojected resolution of 15 arc-seconds per grid cell. This work was supported by the Natural Environment Research Council as part of the LAWIS programme delivering National Capab

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What's in it

Data offered docs-verified
peak flood flow (m3/s) for six return periods between 2 and 100 years, per river network point
Coverage docs-verified
Kerala state, India · 2000-2020 annual maxima series used as input
Resolution docs-verified
15 arc-seconds per grid cell (unprojected); DOCS also list spatial resolution as 450 metres, so confirm which applies
Formats docs-verified
ASCII grid
Access docs-verified
Free download of the whole dataset (zip package) under the Open Government Licence; no authentication listed in entry

Useful for

Use cases llm-inferred
Design peak flow benchmarking for a Kerala drainage or civils scoping study where gauged data is unavailable · Regional flood frequency comparison for international flood risk assessment or FRA desk studies in Kerala · Identifying indicative 2-100 year peak flows at river network points for early-stage hydrological screening
Audience llm-inferred
hydrologists · flood consultants · water resources engineers · civils engineers

Limitations

Constraints llm-inferred
Estimates for ungauged sites are interpolated by top-kriging to over 300 sites, not measured at each cell · Based on an annual maxima record from 2000-2020 only · Derived in a similar way to the FEH approach, not using FEH itself; the Kerala region is outside the UK · Resolution is stated as both 15 arc-seconds and 450 metres in DOCS · No update frequency or versioning is stated; the dataset was published 2022-07-26 · Entry lists no API, MCP or tool access; the data is a static file download
Licence
Open government licence
Authentication
Unknown — review source docs
GitHub stars
Unknown
Last commit
Unknown
Last successful page check
16/10/2026
Page health
healthy
Package
Not recorded
Verification
Not independently verified

Provenance & evidence

Listed in ukceh-eidc public catalogue API on 2026-10-16; relevance/value screened (haiku).

Metadata observed 14/10/2026 · research sweep: sweep-2026-10-16 (ukceh-eidc)