Datové sady / DIGITAL FLOOD INSURANCE RATE MAP DATABASE, DEARBORN COUNTY, INDIANA (AND INCORPORATED AREAS)


DIGITAL FLOOD INSURANCE RATE MAP DATABASE, DEARBORN COUNTY, INDIANA (AND INCORPORATED AREAS)

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). The file is georeferenced to earth's surface using the State Plane projection and coordinate system. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12000.