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Kerala's multi-hazard risk ranking survived an uncertainty test

An Indian watershed tool evaluated 31 units against damage reports.

Evidence
Peer-reviewed
Geography
Pampa River basin, Kerala, India
System
Watershed flood, drought and landslide hazard

WHAT THE EVIDENCE SAYS

Researchers combined 30-metre terrain metrics, expert-weighted criteria and 10,000 Monte Carlo iterations to prioritize 31 sub-watersheds. Several high-risk units ranked consistently, with household-level damage data broadly supporting model priorities.

WHY IT MATTERS / OUR READ

Ranking stability should precede investment, but hazard susceptibility is not interchangeable with exposure, institutional capacity or mitigation performance.

CAVEATS / UNCERTAINTY

Expert-weight perturbations were limited to plus or minus ten percent; resulting map classes and validation apply to the study basin.

SOURCE

Natural Hazards — Sekar et al. (2026)
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