{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "To support floodplain management, insurance rating, and risk assessment by depicting areas of varying flood risk, as designated in official FEMA flood maps. This is a subset derived from FEMA data published 7-23-2024. Covers the City of Independence Missouri and is surrounding region.", "description": "
This layer represents FEMA-designated flood hazard zones from the National Flood Hazard Layer (NFHL), derived from Flood Insurance Rate Maps (FIRMs). These zones define areas with different levels of flood risk, such as the 100-year (1% annual chance) and 500-year (0.2% annual chance) floodplains. To support floodplain management, insurance rating, and risk assessment by depicting areas of varying flood risk, as designated in official FEMA flood maps. This is a subset derived from FEMA data published 7-23-2024. <\/SPAN><\/P> Data Details<\/SPAN><\/P> Data Type: Polygon Feature Class<\/SPAN><\/P><\/LI> Geometry Type: esriGeometryPolygon<\/SPAN><\/P><\/LI> Feature Count: Varies by map extent<\/SPAN><\/P><\/LI> Coordinate System: Web Mercator Auxiliary Sphere (EPSG: 3857), consistent with FEMA\u2019s hosted services. This extracted data is converted to Missouri State Plane West (2403) for the City of Independence Missouri and surrounding region. <\/SPAN><\/P><\/LI><\/UL> Fields and Descriptions:<\/SPAN><\/P> Field Name Alias Description<\/SPAN><\/P> OBJECTID OBJECTID Unique system-generated feature ID<\/SPAN><\/P> FLD_ZONE Flood Zone FEMA-designated flood hazard zone (e.g., AE, X, VE, A, etc.)<\/SPAN><\/P> ZONE_SUBTY Zone Subtype Describes specific subtype or conditions of the flood zone<\/SPAN><\/P> SFHA_TF Special Flood Hazard \"T\" if the area is in a Special Flood Hazard Area, otherwise \"F\"<\/SPAN><\/P> STATIC_BFE Static BFE Base Flood Elevation (if available) in feet<\/SPAN><\/P> V_DATUM Vertical Datum Datum for elevation values, typically NAVD88 or NGVD29<\/SPAN><\/P> DEPTH Flood Depth Depth of flooding above ground in feet (if known)<\/SPAN><\/P> LEN_UNIT Length Units Measurement unit (e.g., \"Feet\")<\/SPAN><\/P> VELOCITY Velocity Flow velocity in feet per second (if modeled)<\/SPAN><\/P> AR_REVERT AR Revert Zone For Zone AR areas: revert zone designation (if applicable)<\/SPAN><\/P> BFE_REVERT BFE Revert BFE for AR Revert Zone (if applicable)<\/SPAN><\/P> DEP_REVERT Depth Revert Depth for AR Revert Zone<\/SPAN><\/P> SOURCE_CIT Source Citation Abbreviation for the study that produced this data<\/SPAN><\/P> DFIRM_ID DFIRM ID Digital FIRM identifier<\/SPAN><\/P> VERSION_ID Version ID Version of the flood mapping data<\/SPAN><\/P> SHAPE Geometry Polygon geometry representing the flood zone<\/SPAN><\/P> GFID FEMA Global Feature ID Unique FEMA identifier<\/SPAN><\/P> GlobalID Esri Global ID System-generated unique ID used for data relationships<\/SPAN><\/P> SHAPE.STArea() Shape Area Calculated area of the polygon (in map units)<\/SPAN><\/P> SHAPE.STLength() Shape Perimeter Perimeter of the polygon (in map units)<\/SPAN><\/P> <\/P>