Geodataset Name:       FEMA96_GAP_MAY16
Geodataset Type:       SHAPEFILE
Geodataset Feature:    Polygon
Feature Count:         10462

DATA SOURCE(S):                    FEDERAL EMERGENCY MANAGEMENT AGENCY (FEMA)
SCALE OF ORIGINAL SOURCE MAPS:     24000
GEODATASET EXTENT:                 State of Florida Counties: Palm Beach, Polk, and Sarasota.

PUBLICATION DATE:                  19960000
TIME PERIOD OF CONTENT:            Begin Date: 19960000
DOWNLOAD LINK:                     http://www.fgdl.org/metadataexplorer/explorer.jsp

FEATURE ATTRIBUTE TABLES:

Datafile Name: FEMA96_GAP_MAY16.DBF

FEATURE ATTRIBUTE TABLES CODES AND VALUES:

Item	Item Description
OBJECTID	Internal feature number.
Shape	Feature geometry.
FIRM_PANEL	Eleven-digit alpha-numeric code identifies portion of community covered or not covered by a FIRM panel. Code comprises a unique alpha-numeric sequence based on FIPS and FEMA Community and Panel identification.
ZONE	Flood hazard zone designation. Multiple Codes refer to"Q3 Flood Data Specifications" A = An area inundated by 100-year flooding, for which no BFEs have been determined. AE = An area inundated by 100-year flooding, for which BFEs have been determined. AO = An area inundated by 100-year flooding (usually sheet flow on sloping terrain), for which average depths have been determined; flood depths range from 1 to 3 feet. AOVEL = An alluvial fan inundated by 100-year flooding (usually sheet flow on sloping terrain), for which average flood depths and velocities have been determined; flood depths range from 1 to 3 feet. AH = An area inundated by 100-year flooding (usually an area of ponding), for which BFEs have been determined; flood depths range from 1 to 3 feet. A99 = An area inundated by 100-year flooding, for which no BFEs have been determined. This is an area to be protected from the 100-year flood by a Federal flood protection system under construction. D = An area of undetermined but possible flood hazards. AR = An area inundated by flooding, for which BFEs or average depths have been determined. This is an area that was previously, and will again, be protected from the 100-year flood by a Federal flood protection system whose restoration is Federally funded and underway. X500 = An area inundated by 500-year flooding; an area inundated by 100-year flooding with average depths of less than 1 foot or with drainage areas less than 1 square mile; or an area protected by levees from the 100-year flooding. X = An area that is determined to be outside the 100- and 500-year floodplains. 100IC = An area where the 100-year flooding is contained within the channel banks and the channel is too narrow to show to scale. An arbitrary channel width of 3 meters is shown. BFEs are not shown in this area, although they may be reflected on the corresponding profile. 500IC = An area where the 500-year flooding is contained within the channel banks and the channel is too narrow to show to scale. An arbitrary channel width of 3 meters is shown. FWIC = An area where the floodway is contained within the channel banks and the channel is too narrow to show to scale. An arbitrary channel width of 3 meters is shown. BFEs are not shown in this area, although they may be reflected on the corresponding profile. FPQ = An area designated as a "Flood Prone Area" on a map prepared by USGS and the Federal Insurance Administration. This area has been delineated based on available information on past floods. This is an area inundated by 100-year flooding for which no BFEs have been determined. V = An area inundated by 100-year flooding with velocity hazard (wave action); no Base Flood Elevation (BFEs) have been determined. VE = An area inundated by 100-year flooding with velocity hazard (wave action); BFEs have been determined.
FLOODWAY	Channel, river or watercourse reserved for flood discharge. Multiple Codes refer to "Q3 Flood Data Specifications".
COBRA	Undeveloped Coastal Barrier Area. Multiple Codes refer to "Q3 Flood Data Specifications".
SFHA	In/Out of flood zone designation, determined from data topology. IN = An area designated as within a "Special Flood Hazard Area" (or SFHA) on a FIRM. This is an area inundated by 100-year flooding for which no BFEs or velocity may have been determined. No distinctions are made between the different flood hazard zones that may be included within the SFHA. These may include Zones A, AE, AO, AH, A99, AR, V, or VE. OUT = An area designated as outside a "Special Flood Hazard Area" (or SFHA) on a FIRM. This is an area inundated by 500-year flooding; an area inundated by 100-year flooding with average depths of less than 1 foot or with drainage areas less than 1 square mile; an area protected by levees from 100-year flooding; or an area that is determined to be outside the 100- and 500-year floodplains. No distinctions are made between these different conditions. These may include both shaded and unshaded areas of Zone X. ANI = An area that is located within a community or county that is not mapped on any published FIRM. UNDES = A body of open water, such as a pond, lake ocean, etc., located within a community's jurisdictional limits, that has no defined flood hazard.
GCID	Based on FEMA96 field: AUTOID
DESCRIPT	Field added by GeoPlan based on ZONE
FGDLAQDATE	Date GeoPlan downloaded the DFIRM_FLDHAZ _MAY16 layer from the Source.
AUTOID	Unique ID added by GeoPlan
SHAPE.AREA	Area in meters
SHAPE.LEN	Perimeter in meters

USER NOTES:

Certain node/geometry and topology (GT)-polygon/chain relationships are collected or generated to satisfy topological requirements. Some of these requirements include: chains must begin and end at nodes, chains must connect to each other at nodes, chains do not extend through nodes, left and right GT-polygons are defined for each chain element and are consistent throughout the transfer, and the chains representing the limits of the file (neatline) are free of gaps. The neatline is generated by connecting the four corners of the digital file, as established during initialization of the digital file. All data outside the enclosed region are ignored and all data crossing these geographically straight lines are clipped at the neatline. (Exception: During the QA/QC process all data is examined and if errors are found and corrections are possible, then data is corrected accordingly. This process is documented in the Process_Step.) Data within a specified tolerance of the neatline are snapped to the neatline. Neatline straightening aligns the digitized edges of the digital data with the generated neatline, that is, with the longitude/latitude lines in geographic coordinates. All internal polygons are tested for closure. Certain attributes and/or entities, e.g. closure line, convey data quality information. When information to be encoded in the subfield is known to be not applicable (undefined, not relevant), then the subfield is valued by a string of "9s"; and when the information to be encoded is relevant but unknown (or missing), then the subfield is valued by a string of "9s."

Certain node/geometry and topology (GT)-polygon/chain relationships are collected or generated to satisfy topological requirements. Some of these requirements include: chains must begin and end at nodes, chains must connect to each other at nodes, chains do not extend through nodes, left and right GT-polygons are defined for each chain element and are consistent throughout the transfer, and the chains representing the limits of the file (neatline) are free of gaps. The neatline is generated by connecting the four corners of the digital file, as established during initialization of the digital file. All data outside the enclosed region are ignored and all data crossing these geographically straight lines are clipped at the neatline. (Exception: During the QA/QC process all data is examined and if errors are found and corrections are possible, then data is corrected accordingly. This process is documented in the Process_Step.) Data within a specified tolerance of the neatline are snapped to the neatline. Neatline straightening aligns the digitized edges of the digital data with the generated neatline, that is, with the longitude/latitude lines in geographic coordinates. All internal polygons are tested for closure. Certain attributes and/or entities, e.g. closure line, convey data quality information. When information to be encoded in the subfield is known to be not applicable (undefined, not relevant), then the subfield is valued by a string of "9s"; and when the information to be encoded is relevant but unknown (or missing), then the subfield is valued by a string of "9s."

GeoPlan relied on the integrity of the attribute information within the original data.

These data are designed to provide a guidance and a general proximity of the locations of Special Flood Hazard Areas(SFHA) and zones of possible risks associated with food inundation. In addition to locational and topological information, features contained in the data set include 1%(100 year) and 0.2% (500 year) annual chance flood plain boundaries, flood insurance zone designations (including Velocity zones), flood way boundaries(when available), political boundaries(State, county and community), community and map panel identification number, FIRM panel neat lines, USGS 7.5-minute (1:24,000 scale) topographic map quadrangle neat lines, and Coastal Barrier Resource Act(COBRA) areas.

This data is provided 'as is' and its horizontal positional accuracy has not been verified by GeoPlan

This data is provided 'as is' and its vertical positional accuracy has not been verified by GeoPlan

NONE

The Florida Geographic Data Library is a collection of Geospatial Data compiled by the University of Florida GeoPlan Center with support from the Florida Department of Transportation. GIS data available in FGDL is collected from various state, federal, and other agencies (data sources) who are data stewards, producers, or publishers. The data available in FGDL may not be the most current version of the data offered by the data source. University of Florida GeoPlan Center makes no guarantees about the currentness of the data and suggests that data users check with the data source to see if more recent versions of the data exist. Furthermore, the GIS data available in the FGDL are provided 'as is'. The University of Florida GeoPlan Center makes no warranties, guaranties or representations as to the truth, accuracy or completeness of the data provided by the data sources. The University of Florida GeoPlan Center makes no representations or warranties about the quality or suitability of the materials, either expressly or implied, including but not limited to any implied warranties of merchantability, fitness for a particular purpose, or non-infringement. The University of Florida GeoPlan Center shall not be liable for any damages suffered as a result of using, modifying, contributing or distributing the materials. A note about data scale: Scale is an important factor in data usage. Certain scale datasets are not suitable for some project, analysis, or modeling purposes. Please be sure you are using the best available data. 1:24000 scale datasets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries. 1:100000 scale datasets are recommended for projects that are at the multi-county or regional level. 1:125000 scale datasets are recommended for projects that are at the regional or state level or larger. Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analysis. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our webpage at: http://geoplan.ufl.edu/education.html

REFERENCES:

FEMA Flood Map Service Center https://msc.fema.gov/portal/advanceSearch

DATA LINEAGE SUMMARY:

The process step describes, in general, the process used in the production of data sets. The originating agencies created the original spatial coverage. GeoPlan, during the QA/QC process included the following aspects: (1) Reprojected data to FGDL Albers (2) Set Precision to DOUBLE (3) Set Tolerances to FGDL Standards (4) Added DESCRIPT based on ZONE Process Date: 20000000 For 10 of the counties that were missing (BRADFORD, COLUMBIA, DIXIE, GILCHRIST, HAMILTON, JEFFERSON, LAFAYETTE, MADISON, TAYLOR, UNION) a countywide polygon was appended and the DESCRIPT was calculated to "NO DATA AVAILABLE". Note that OKEECHOBEE County already had a polygon covering the county which didn't have any FEMA information in it. This polygon was also calculated with "NO DATA AVAILABLE". There were several records that had ZONE = ''. In these cases the DESCRIPT was calculated to "NO DESCRIPT AVAILABLE". Process Date: 20070612 GeoPlan created a subset of the statewide FEAM96 layer for the following areas; Palm Beach County, Polk County, and Sarasota County. These counties are currently absent from the FEMA Flood Hazard Zones of the Digital Flood Insurance Rate Map (DFIRM) May 2016 layer: DFIRM_FLDHAZ_MAY16. The FEMA96 layer was Erased where there was overlap with the DFIRM_FLDHAZ_MAY16 layer. The erased layer was converted from multipart to single part polygons. Sliver polygons were deleted and the repair geometry command was run. The original FEMA96 AUTOID was renamed to GCID. The FGDLAQDATE was added and populated based on the FGDLAQDATE field in the DFIRM_FLDHAZ_MAY16 layer. The final layer was named: FEMA96_GAP_MAY16 to match the DFIRM source date. Process Date: 20160601

MAP PROJECTION PARAMETERS:

Projection                          ALBERS
Datum                               HPGN
Units                               METERS
Spheroid                            GRS1980
1st Standard Parallel               24  0  0.000
2nd Standard Parallel               31 30  0.000
Central Meridian                   -84 00  0.000
Latitude of Projection's Origin     24  0  0.000
False Easting (meters)              400000.00000
False Northing (meters)             0.00000

DATA SOURCE CONTACT (S):

Name:
Abbr. Name:
Address:


Phone:

Web site:
E-mail:
Contact Person:
         Phone:
        E-mail:

FEMA
500 C Street, S.W.
Washington, DC
20472
1-800-358-9691


http://www.fema.gov

Name:                   FLORIDA GEOGRAPHIC DATA LIBRARY
Abbr. Name:             FGDL
Address:                Florida Geographic Data Library
                        431 Architecture Building
                        PO Box 115706
                        Gainesville, FL  32611-5706
Web site:               http://www.fgdl.org

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