2013 FEMA Flood Hazard Boundaries

Metadata from the RGIS Metadata Repository

Identification Information

Citation
Citation Information
Originator Federal Emergency Management Agency
Publication Date 2013-03-18
Publication Time 08:59:27
Title 2013 FEMA Flood Hazard Boundaries
Geospatial Data Presentation Form vector digital data
Publication Information
Publication Place Washington, DC
Publisher Federal Emergency Management Agency
Other Citation Details
Online Linkage http://www.msc.fema.gov
Online Linkage https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/services/ogc/wms?SERVICE=wms&REQUEST=GetCapabilities&VERSION=1.1.1
Online Linkage https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/services/ogc/wfs?SERVICE=wfs&REQUEST=GetCapabilities&VERSION=1.0.0
Online Linkage https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/S_FLD_HAZ_LN.derived.shp
Online Linkage https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/S_FLD_HAZ_LN.original.zip
Online Linkage https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/S_FLD_HAZ_LN.derived.gml
Online Linkage https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/S_FLD_HAZ_LN.derived.kml
Online Linkage https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/S_FLD_HAZ_LN.derived.geojson
Online Linkage https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/S_FLD_HAZ_LN.derived.json
Online Linkage https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/S_FLD_HAZ_LN.derived.csv
Online Linkage https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/S_FLD_HAZ_LN.derived.xls
Online Linkage https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/metadata/FGDC-STD-001-1998.xml
Online Linkage https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/metadata/FGDC-STD-001-1998.html
Online Linkage https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/metadata/ISO-19115:2003.xml
Online Linkage https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/metadata/ISO-19115:2003.html
Larger Work Citation
Description
Abstract The National Flood Hazard Layer (NFHL) data incorporates all Digital Flood Insurance Rate Map(DFIRM) databases published by FEMA, and any Letters Of Map Revision (LOMRs) that have been issued against those databases since their publication date. The DFIRM Database is the digital, geospatial version of the flood hazard information shown on the published paper Flood Insurance Rate Maps(FIRMs). 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 NFHL data are 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 specifications for the horizontal control of DFIRM data are consistent with those required for mapping at a scale of 1:12,000. The NFHL data contain layers in the Standard DFIRM datasets except for S_Label_Pt and S_Label_Ld. The NFHL is available as State or US Territory data sets. Each State or Territory data set consists of all DFIRMs and corresponding LOMRs available on the publication date of the data set.
Purpose The FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). Insurance applications include enforcement of the mandatory purchase requirement of the Flood Disaster Protection Act, which "... requires the purchase of flood insurance by property owners who are being assisted by Federal programs or by Federally supervised, regulated or insured agencies or institutions in the acquisition or improvement of land facilities" (Section 2 (b) (4) of the Flood Disaster Protection Act of 1973). In addition to the identification of Special Flood Hazard Areas (SFHAs), the risk zones shown on the FIRMs are the basis for the establishment of premium rates for flood coverage offered through the NFIP. The NFHL data present the flood risk information depicted on the FIRM in a digital format suitable for use in electronic mapping applications. The NFHL database is a subset of the information created for the FIS and serves as a means to archive a portion of the information collected during the FIS.
Time Period of Content
Single Date/Time
Calendar Date 2013-02-06
Currentness Reference Represents effective DFIRMs and LOMRs available as of the publication date for the acquired State or Territory data set.
Status
Progress In work
Maintenance and Update Frequency Monthly
Spatial Domain
Bounding Coordinates
West Bounding Coordinate -109.047523
East Bounding Coordinate -103.04253
North Bounding Coordinate 37.000239
South Bounding Coordinate 31.783506
Keywords
Theme
Thesaurus FEMA NFIP Topic Category
Keyword DFIRM
Keyword FIRM
Keyword FEMA Flood Hazard Zone
Keyword DFIRM Database
Keyword Special Flood Hazard Area
Keyword Digital Flood Insurance Rate Map
Keyword CBRS
Keyword Coastal Barrier Resources System
Keyword Riverine Flooding
Keyword Coastal Flooding
Keyword NFIP
Keyword Base Flood Elevation
Keyword SFHA
Keyword Flood Insurance Rate Map
Keyword Floodway
Theme
Thesaurus ISO 19115 Topic Categories
Keyword environment
Place
Thesaurus Country
Keyword U.S.
Place
Thesaurus State
Keyword New Mexcio
Access Constraints None
Use Constraints Acknowledgement of FEMA would be appreciated in products derived from these data.
Point of Contact
Contact Information
Contact Person Primary
Contact Person
Contact Organization
Contact Organization Primary
Contact Organization Federal Emergency Management Agency
Contact Person
Contact Position
Contact Address
Address Type mailing address
Address 500 C Street, S.W.
City Washington
State or Province District of Columbia
Postal Code 20472
Country USA
Contact Voice Telephone 1-877-FEMA-MAP
Contact Facsimile Telephone
Contact Electronic Mail Address fema-mscservice@dhs.gov
Hours of Service
Contact Instructions
Native Data Set Environment Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.3000
Cross Reference
Citation Information
Originator Federal Emergency Management Agency
Publication Date 2013-02-06
Publication Time
Title Unknown
Geospatial Data Presentation Form vector digital data
Publication Information
Publication Place Washington, DC
Publisher Federal Emergency Management Agency
Other Citation Details
Online Linkage http://www.msc.fema.gov
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Data Quality Information

Attribute Accuracy Report
Report The National Flood Hazard Layer (NFHL) data incorporates all Digital Flood Insurance Rate Map(DFIRM) databases published by FEMA, and any Letters Of Map Revision (LOMRs) that have been issued against those databases since their publication date. The DFIRM Database consists of community based vector files and associated attributes produced in conjunction with the hard copy FEMA FIRM. The published effective FIRM and DFIRM maps are issued as the official designation of the Special Flood Hazard Areas (SFHAs). As such they are adopted by local communities and form the basis for administration of the National Flood Insurance Program (NFIP). For these purposes they are authoritative. Provisions exist in the regulations for public review, appeals and corrections of the flood risk information shown to better match real world conditions. As with any engineering analysis of this type, variation from the estimated flood heights and floodplain boundaries is possible. Details of FEMA's requirements for the FISs and flood mapping process that produces these data are available in the Guidelines and Specifications for Flood Hazard Mapping Partners. Attribute accuracy was tested by manual comparison of source graphics with hardcopy plots and a symbolized display on an interactive computer graphic system. Independent quality control testing of FEMA's DFIRM databases was also performed. To obtain more detailed information in areas where Base Flood Elevations (BFEs) and/or floodways have been determined, users are encouraged to consult the Flood Profiles and Floodway Data and/or Summary of Stillwater Elevations tables contained within the FIS report that accompanies the individual components of the DFIRM data. Users should be aware that BFEs shown in the S_BFE table represent rounded whole-foot elevations. These BFEs are intended for flood insurance rating purposes only and should not be used as the sole source of flood elevation information. Accordingly, flood elevation data presented in the FIS report must be used in conjunction with the FIRM for purposes of construction and/or floodplain management. The 1-percent-annual-chance water-surface elevations shown in the S_XS table match the regulatory elevations shown in the FIS report.
Quantitative Attribute Accuracy Assessment
Attribute Accuracy Value
Attribute Accuracy Explanation
Horizontal Positional Accuracy Report
Report The National Flood Hazard Layer data consists of community based vector files and associated attributes produced in conjunction with the hardcopy FEMA FIRM. The published effective FIRM and DFIRM maps are issued as the official designation of the SFHAs. As such they are adopted by local communities and form the basis for administration of the NFIP. For these purposes they are authoritative. Provisions exist in the regulations for public review, appeals and corrections of the flood risk information shown to better match real world conditions. As with any engineering analysis of this type, variation from the estimated flood heights and floodplain boundaries is possible. Details of FEMA's requirements for the FISs and flood mapping process that produces these data are available in the Guidelines and Specifications for Flood Hazard Mapping Partners. Horizontal accuracy was tested by manual comparison of source graphics with hardcopy plots and a symbolized display on an interactive computer graphic system. Independent quality control testing of the individual DFIRM data sets was also performed.
Quantitative Horizontal Positional Accuracy Assessment
Horizontal Positional Accuracy Value
Horizontal Positional Accuracy Explanation
Vertical Positional Accuracy Report
Report The National Flood Hazard Layer data consists of community based vector files and associated attributes produced in conjunction with the hardcopy FEMA FIRM. The published effective FIRM and DFIRM maps are issued as the official designation of the SFHAs. As such they are adopted by local communities and form the basis for administration of the NFIP. For these purposes they are authoritative. Provisions exist in the regulations for public review, appeals and corrections of the flood risk information shown to better match real world conditions. As with any engineering analysis of this type, variation from the estimated flood heights and floodplain boundaries is possible. Details of FEMA's requirements for the FISs and flood mapping process that produces these data are available in the Guidelines and Specifications for Flood Hazard Mapping Partners. Vertical accuracy was tested by manual comparison of source graphics with hardcopy plots and a symbolized display on an interactive computer graphic system. Independent quality control testing of the individual DFIRM data sets was also performed.
Quantitative Vertical Positional Accuracy Assessment
Vertical Positional Accuracy Value
Vertical Positional Accuracy Explanation
Logical Consistency Report When FEMA revises an FIS, adjacent studies are checked to ensure agreement between flood elevations at the boundaries. Likewise flood elevations at the confluence of streams studied independently are checked to ensure agreement at the confluence. The FIRM and the FIS are developed together and care is taken to ensure that the elevations and other features shown on the flood profiles in the FIS agree with the information shown on the FIRM. However, the elevations as shown on the FIRM are rounded whole-foot elevations. They must be shown so that a profile recreated from the elevations on the FIRM will match the FIS profiles within one half of one foot.
Completeness Report Information contained in the National Flood Hazard Layer data reflects the content of the source materials. Features may have been eliminated or generalized on the source graphic, due to scale and legibility constraints. With new mapping, FEMA plans to maintain full detail in the spatial data it produces. However, older information is often transferred from existing maps where some generalization has taken place. Flood risk data are developed for communities participating in the NFIP for use in insurance rating and for floodplain management. Flood hazard areas are determined using statistical analyses of records of river flow, storm tides, and rainfall; information obtained through consultation with the communities; floodplain topographic surveys; and hydrological and hydraulic analysis. Both detailed and approximate analyses are employed. Generally, detailed analyses are used to generate flood risk data only for developed or developing areas of communities. For areas where little or no development is expected to occur, FEMA uses approximate analyses to generate flood risk data. Typically, only drainage areas that are greater than one square mile are studied. The National Flood Hazard Layer data reflects the most current information available when the distribution data set was created.
Lineage
Source Information
Source Citation
Citation Information
Originator Federal Emergency Management Agency
Publication Date 2013-02-06
Publication Time
Title National Flood Hazard Layer
Geospatial Data Presentation Form
Publication Information
Publication Place
Publisher
Other Citation Details
Source Scale Denominator
Type of Source Media digital tape media
Source Time Period of Content
Source Currentness Reference Available effective DFIRMs and LOMRs issued against those DFIRMs.
Source Citation Abbreviation NFHL
Source Contribution Spatial and attribute information, floodplain widths, BFEs, floodplain location.
Process Step
Process Description The individual components of the National Flood Hazard Layer data are compiled in conjunction with the hardcopy FIRM and the final FIS report. The specifics of the hydrologic and hydraulic analyses performed are detailed in the FIS reports available for each community. The results of these studies are submitted in digital format to FEMA. These data and unrevised data from effective FIRMs are compiled onto the base map used for DFIRM publication and checked for accuracy and compliance with FEMA standards. As new DFIRM data sets are received the individual DFIRM layers are sewn into the nationwide layers of the NFHL. LOMRs for the DFIRMs in the NFHL are cut directly into the NFHL data layers as they are being produced and finalized.
Process Date 2013-02-06
Process Time
Process Contact
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Spatial Data Organization Information

Indirect Spatial Reference Method New Mexico
Direct Spatial Reference Method Vector
Point and Vector Object Information
SDTS Terms Description
SDTS Point and Vector Object Type String
Point and Vector Object Count 23903
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Spatial Reference Information

Spatial Reference
Name North American Datum of 1983
Code EPSG:4269
URL http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4269
Spatial Reference
Name Geodetic Reference System 80
Code EPSG:7019
URL http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:ellipsoid:EPSG::7019
Spatial Reference
Name Mixed
Code EDAC:Unknown
URL http://gstore.unm.edu/spref/EDAC-Unknown
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Entity and Attribute Information

Detailed Description
Entity Type
Entity Type LabelS_FLD_HAZ_LN
Entity Type Definition Location and attributes for a tiling index for raster data used for the DFIRM
Entity Type Definition Source FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix L: Guidance for Preparing Draft Digital Data and DFIRM Databases (available at http://www.fema.gov/fhm/dl_cgs.shtm)
Attribute
Attribute Label FID
Attribute Definition Internal feature number.
Attribute Definition Source ESRI
Attribute Domain Values
Unrepresentable Domain Sequential unique whole numbers that are automatically generated.
Attribute
Attribute Label Shape
Attribute Definition Feature geometry.
Attribute Definition Source ESRI
Attribute Domain Values
Unrepresentable Domain Coordinates defining the features.
Attribute
Attribute Label OBJECTID
Attribute Definition Unknown - contact originator for additional information
Attribute Definition Source Unknown - contact originator for additional information
Attribute Domain Values
Unrepresentable Domain Unknown - contact originator for additional information
Attribute
Attribute Label DFIRM_ID
Attribute Definition Identification number for the Digital Flood Insurance Rate Map
Attribute Definition Source FEMA
Attribute Domain Values
Unrepresentable Domain Unknown - contact originator for additional information
Attribute
Attribute Label FLD_LN_ID
Attribute Definition Unknown - contact originator for additional information
Attribute Definition Source Unknown - contact originator for additional information
Attribute Domain Values
Unrepresentable Domain Unknown - contact originator for additional information
Attribute
Attribute Label LN_TYP
Attribute Definition Unknown - contact originator for additional information
Attribute Definition Source Unknown - contact originator for additional information
Attribute Domain Values
Unrepresentable Domain Unknown - contact originator for additional information
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Distribution Information

Distributor
Resource Description Downloadable Data
Distribution Liability The material on this site is made available as a public service. Maps and data are to be used for reference purposes only and the Earth Data Analysis Center (EDAC), Resource Geographic Information System (RGIS) and The University of New Mexico are not responsible for any inaccuracies herein contained. No responsibility is assumed for damages or other liabilities due to the accuracy, availability, use or misuse of the information herein provided. Unless otherwise indicated in the documentation (metadata) for individual data sets, information on this site is public domain and may be copied without permission; citation of the source is appreciated.
Standard Order Process
Digital Form
Digital Transfer Information
Format Name ZIP
Transfer Size 88
Digital Transfer Option
Online Option
Computer Contact Information
Network Address
Network Resource Name https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/S_FLD_HAZ_LN.original.zip
Access Instructions Download from Resource Geographic Information System (RGIS) at http://rgis.unm.edu.
Fees None. The files are available to download from Resource Geographic Information System (RGIS) (http://rgis.unm.edu).
Ordering Instructions Contact Earth Data Analysis Center at clearinghouse@edac.unm.edu
Standard Order Process
Digital Form
Digital Transfer Information
Format Name ESRI Shapefile (shp)
Transfer Size 25
Digital Transfer Option
Online Option
Computer Contact Information
Network Address
Network Resource Name https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/S_FLD_HAZ_LN.derived.shp
Access Instructions Download from Resource Geographic Information System (RGIS) at http://rgis.unm.edu.
Fees None. The files are available to download from Resource Geographic Information System (RGIS) (http://rgis.unm.edu).
Ordering Instructions Contact Earth Data Analysis Center at clearinghouse@edac.unm.edu
Standard Order Process
Digital Form
Digital Transfer Information
Format Name GML
Transfer Size 25
Digital Transfer Option
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Computer Contact Information
Network Address
Network Resource Name https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/S_FLD_HAZ_LN.derived.gml
Access Instructions Download from Resource Geographic Information System (RGIS) at http://rgis.unm.edu.
Fees None. The files are available to download from Resource Geographic Information System (RGIS) (http://rgis.unm.edu).
Ordering Instructions Contact Earth Data Analysis Center at clearinghouse@edac.unm.edu
Standard Order Process
Digital Form
Digital Transfer Information
Format Name KML
Transfer Size 25
Digital Transfer Option
Online Option
Computer Contact Information
Network Address
Network Resource Name https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/S_FLD_HAZ_LN.derived.kml
Access Instructions Download from Resource Geographic Information System (RGIS) at http://rgis.unm.edu.
Fees None. The files are available to download from Resource Geographic Information System (RGIS) (http://rgis.unm.edu).
Ordering Instructions Contact Earth Data Analysis Center at clearinghouse@edac.unm.edu
Standard Order Process
Digital Form
Digital Transfer Information
Format Name GeoJSON
Transfer Size 25
Digital Transfer Option
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Computer Contact Information
Network Address
Network Resource Name https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/S_FLD_HAZ_LN.derived.geojson
Access Instructions Download from Resource Geographic Information System (RGIS) at http://rgis.unm.edu.
Fees None. The files are available to download from Resource Geographic Information System (RGIS) (http://rgis.unm.edu).
Ordering Instructions Contact Earth Data Analysis Center at clearinghouse@edac.unm.edu
Standard Order Process
Digital Form
Digital Transfer Information
Format Name JSON
Transfer Size 25
Digital Transfer Option
Online Option
Computer Contact Information
Network Address
Network Resource Name https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/S_FLD_HAZ_LN.derived.json
Access Instructions Download from Resource Geographic Information System (RGIS) at http://rgis.unm.edu.
Fees None. The files are available to download from Resource Geographic Information System (RGIS) (http://rgis.unm.edu).
Ordering Instructions Contact Earth Data Analysis Center at clearinghouse@edac.unm.edu
Standard Order Process
Digital Form
Digital Transfer Information
Format Name Comma Separated Values (csv)
Transfer Size 25
Digital Transfer Option
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Computer Contact Information
Network Address
Network Resource Name https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/S_FLD_HAZ_LN.derived.csv
Access Instructions Download from Resource Geographic Information System (RGIS) at http://rgis.unm.edu.
Fees None. The files are available to download from Resource Geographic Information System (RGIS) (http://rgis.unm.edu).
Ordering Instructions Contact Earth Data Analysis Center at clearinghouse@edac.unm.edu
Standard Order Process
Digital Form
Digital Transfer Information
Format Name MS Excel format (xls)
Transfer Size 25
Digital Transfer Option
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Computer Contact Information
Network Address
Network Resource Name https://gstore.unm.edu/apps/rgis/datasets/fbff3bb0-5bbb-43a8-bed8-515a7dec327b/S_FLD_HAZ_LN.derived.xls
Access Instructions Download from Resource Geographic Information System (RGIS) at http://rgis.unm.edu.
Fees None. The files are available to download from Resource Geographic Information System (RGIS) (http://rgis.unm.edu).
Ordering Instructions Contact Earth Data Analysis Center at clearinghouse@edac.unm.edu
Custom Order Process Contact Earth Data Analysis Center at clearinghouse@edac.unm.edu
Technical Prerequisites Adequate computer capability is the only technical prerequisite for viewing data in digital form.
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Metadata Reference Information

Metadata Date 2019-04-25
Metadata Review Date
Metadata Future Review Date
Metadata Contact
Contact Information
Contact Person Primary
Contact Person
Contact Organization
Contact Organization Primary
Contact Organization Earth Data Analysis Center
Contact Person
Contact Position Clearinghouse Manager
Contact Address
Address Type mailing and physical address
Address MSC01 1110
Address 1 University of New Mexico
City Albuquerque
State or Province NM
Postal Code 87131-0001
Country USA
Contact Voice Telephone 505-277-3622 ext. 230
Contact Facsimile Telephone 505-277-3614
Contact Electronic Mail Address clearinghouse@edac.unm.edu
Hours of Service 0800 - 1700 MT, M-F -7 hours GMT
Contact Instructions
Metadata Standard Name FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version FGDC-STD-001-1998
Metadata Time Convention
Metadata Access Constraints
Metadata Use Constraints
Metadata Security Information
Security Classification System
Security Classification
Security Handling Description
Metadata Extensions
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