Datové sady / DIGITAL FLOOD INSURANCE RATE MAP DATABASE, Madison COUNTY, Iowa,USA


DIGITAL FLOOD INSURANCE RATE MAP DATABASE, Madison COUNTY, Iowa,USA

Vydavatel Federal Emergency Management Agency, Department of Homeland Security

Datum vydání před více než 9 roky

US
beta

Shrnutí

Co poskytovatel nabízí?
ongoing release of a series of related datasets

Databázová licence
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Licence na obsah
Creative Commons CCZero

Způsob ověření
ověřený automaticky

Popis

The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. 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 DFIRM Database is derived from 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). In addition to the preceding, required text, the Abstract should also describe the projection and coordinate system as well as a general statement about horizontal accuracy.