Flood event estimates derived from a combination of hydrological modeling and observed data. The dataset incorporates a GIS model using HydroSHEDS data and the Manning equation, plus observed floods from the Dartmouth Flood Observatory between 1999 and 2007. It was produced by UNEP/GRID-Europe for the Global Assessment Report on Risk Reduction, with support from USGS EROS and the Dartmouth Flood Observatory.
Use Cases
- Validate GIS-based flood stage estimates against observed flood records from 1999-2007.
- Analyze spatial patterns of estimated peak-flow magnitude for regional risk assessment.
- Compare model-derived river stage data with Dartmouth Flood Observatory event logs.
- Assess flood frequency and severity for the Global Assessment Report on Risk Reduction.
Strengths
- Includes observed flood data spanning an 8-year period (1999-2007).
- Integrates two distinct data sources: statistical/GIS modeling and ground observations.
Limitations
- Observed data component is temporally limited and may be stale (ends in 2007).
- Sample size and spatial resolution of modeled and observed data are unknown.
Provenance
- Source
- UNEP/GRID-Europe, Dartmouth Flood Observatory, USGS EROS Data Center.
- Collection Method
- GIS statistical modeling using HydroSHEDS and Manning equation, combined with observed flood records.
- Time Range
- 1999 to 2007 for observed data; modeling time range is unspecified.
- Freshness
- null
- Geography
- Global coverage.