FEMA Digital Flood Insurance Rate Maps: Prince George's County, Maryland, 2016
United States. Federal Emergency Management Agency
·
2016
Full Details
Full Details
Title
FEMA Digital Flood Insurance Rate Maps: Prince George's County, Maryland, 2016
Description
The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Management Agency (FEMA), and any Letters of Map Revision (LOMRs) that have been issued against those databases since their publication date. It is updated on a monthly basis. The FIRM Database is the digital, geospatial version of the flood hazard information shown on the published paper FIRMs. The FIRM 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 FIRM Database is derived from Flood Insurance Studies (FISs), previously published 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 FEMA. The NFHL is available as State or US Territory data sets. Each State or Territory data set consists of all FIRM Databases and corresponding LOMRs available on the publication date of the data set. The specification for the horizontal control of FIRM Databases is consistent with those required for mapping at a scale of 1:12,000. This file is georeferenced to the Earth's surface using the Geographic Coordinate System (GCS) and North American Datum of 1983. The Prince George's County Planning Department does not have the authority to release this data. Please contact the authoritative source for more information and to acquire the data.
Creator
United States. Federal Emergency Management Agency
United States. Federal Emergency Management Agency (2016). FEMA Digital Flood Insurance Rate Maps: Prince George's County, Maryland, 2016. . http://gisdata.pgplanning.org/opendata/ (dataset)