Digital Flood Insurance Rate Maps
收藏Iowa Geospatial Data Portal2021-02-15 更新2026-05-16 收录
下载链接：
https://geodata.iowa.gov/datasets/727675bc4fe34cf39ae3b826deecb74b_0
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资源简介：
The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual- chance flood event, and areas of minimal flood risk. The Floodplain Mapping/Redelineation flood risk boundaries are derived from the engineering information Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data, where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA).
提供机构：
NRGIS_iowadnr
创建时间：
2020-11-10
