Floodplains in Utah contains the Digital Flood Insurance Rate Map (DFIRM) Database depicting flood risk classifications. The data is derived from Federal Emergency Management Agency (FEMA) Flood Insurance Studies and maps, georeferenced using UTM projection. The horizontal control specifications are consistent with mapping at a scale of 1:12000.
Use Cases
- Classifying areas into 1-percent-annual-chance flood event zones for land-use planning.
- Identifying 0.2-percent-annual-chance flood event zones for high-risk infrastructure assessment.
- Delineating areas of minimal flood risk for insurance underwriting and property valuation.
- Geospatial analysis of flood hazard data referenced via the UTM coordinate system.
Strengths
- Data is derived from authoritative FEMA Flood Insurance Studies and published maps.
- Horizontal control meets specifications for mapping at a detailed scale of 1:12000.
Limitations
- Specific data volume, row count, and temporal coverage for Utah are unknown.
- The dataset scope is limited to the state of Utah, not national or global.
Provenance
- Source
- Federal Emergency Management Agency (FEMA) via the SCIOPS organization on NASA Earthdata.
- Collection Method
- Derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), and new mapping data.
- Time Range
- null
- Freshness
- null
- Geography
- State of Utah, United States.