18 datasets found
  1. a

    FEMAFloodHazardArea

    • data-redding.opendata.arcgis.com
    Updated Feb 3, 2017
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    City of Redding GIS (2017). FEMAFloodHazardArea [Dataset]. https://data-redding.opendata.arcgis.com/datasets/femafloodhazardarea
    Explore at:
    Dataset updated
    Feb 3, 2017
    Dataset authored and provided by
    City of Redding GIS
    Area covered
    Description

    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 UTM ZONE 10N projection and coordiante system The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000.

  2. a

    CBRS Buffer Zone

    • hub.arcgis.com
    Updated Feb 8, 2017
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    Martin County, Florida (2017). CBRS Buffer Zone [Dataset]. https://hub.arcgis.com/datasets/593ba44e4dbf4e50a9347168dd123b40
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    Dataset updated
    Feb 8, 2017
    Dataset authored and provided by
    Martin County, Florida
    Area covered
    Description

    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).

  3. C

    Flood Hazard Zone, August 2017

    • data.marincounty.org
    application/rdfxml +5
    Updated Nov 1, 2019
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    (2019). Flood Hazard Zone, August 2017 [Dataset]. https://data.marincounty.org/dataset/Flood-Hazard-Zone-August-2017/mit8-7dme
    Explore at:
    csv, application/rdfxml, application/rssxml, tsv, xml, jsonAvailable download formats
    Dataset updated
    Nov 1, 2019
    Description

    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 UTM 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 1:12,000.

  4. a

    Digital Flood Insurance Rate Map (DFIRM)

    • hub.arcgis.com
    • gis-sccmo.opendata.arcgis.com
    Updated Mar 20, 2019
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    St. Charles County Government (2019). Digital Flood Insurance Rate Map (DFIRM) [Dataset]. https://hub.arcgis.com/maps/98712e718956490fa08b21067a105809_3/about
    Explore at:
    Dataset updated
    Mar 20, 2019
    Dataset authored and provided by
    St. Charles County Government
    Area covered
    Description

    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). In addition to the preceding, required text, the Abstract should also describe the projection and coordinate system as well as a general statement about horizontal accuracy.

  5. a

    Hazards Flood Zone

    • gis.data.alaska.gov
    • data1-msb.opendata.arcgis.com
    • +1more
    Updated Jan 22, 2020
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    Matanuska-Susitna Borough (2020). Hazards Flood Zone [Dataset]. https://gis.data.alaska.gov/maps/d2bd4dc185cc401da508188f03d07a70
    Explore at:
    Dataset updated
    Jan 22, 2020
    Dataset authored and provided by
    Matanuska-Susitna Borough
    Area covered
    Description

    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 coordinate system. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000.

  6. Flood Insurance Rate Map Database, Kent County, Delaware, USA

    • data.wu.ac.at
    shp
    Updated Nov 14, 2017
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    Federal Emergency Management Agency, Department of Homeland Security (2017). Flood Insurance Rate Map Database, Kent County, Delaware, USA [Dataset]. https://data.wu.ac.at/schema/data_gov/MjliMzdiNDctYmE1Yy00ZmM5LWJhNzItNmRlYzhlMjFmYjZh
    Explore at:
    shpAvailable download formats
    Dataset updated
    Nov 14, 2017
    Dataset provided by
    Federal Emergency Management Agencyhttp://www.fema.gov/
    U.S. Department of Homeland Securityhttp://www.dhs.gov/
    License

    U.S. Government Workshttps://www.usa.gov/government-works
    License information was derived automatically

    Area covered
    f7a88bd65fabb5d50c5cb190d8b02bc715cc3ef4, United States
    Description

    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 Delaware (FIPS 0700) 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 1:12,000. Coastal study data as defined in FEMA Gudelines and Specifications, Appendix D: Guidance for Coastal Flooding Analyses and Mapping, submitted as a result of a coastal study. Appendix D notes that a variety of analytical methodologies may be used to establish Base (1-percent-annual-chance) Flood Elevations (BFEs) and floodplains throughout coastal areas of the United States. Appendix D itemizes references for the methodologies currently in use by FEMA for specific coastal flood hazards, provides general guidance for documentation of a coastal flood hazard analysis, specifies flood hazard analysis procedures for the Great Lakes coasts, and outlines intermediate data submissions for coastal flood hazard analyses with new storm surge modeling and revised stillwater flood level (SWFL). (Source: FEMA Guidelines and Specs, Appendix D Guidance for Coastal Flooding Analyses and Mapping, Section D.1)

  7. m

    Floodway

    • data.matsugov.us
    • akscf-msb.opendata.arcgis.com
    • +3more
    Updated Jan 22, 2020
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    Matanuska-Susitna Borough (2020). Floodway [Dataset]. https://data.matsugov.us/maps/floodway
    Explore at:
    Dataset updated
    Jan 22, 2020
    Dataset authored and provided by
    Matanuska-Susitna Borough
    Area covered
    Description

    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 coordinate system. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000.

  8. a

    FEMA Floodway

    • arc-gis-hub-home-arcgishub.hub.arcgis.com
    • opendata-sccgis.opendata.arcgis.com
    Updated Apr 6, 2022
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    SantaCruzCountyGIS (2022). FEMA Floodway [Dataset]. https://arc-gis-hub-home-arcgishub.hub.arcgis.com/datasets/89f4b3d311604a329a87f786fad48281
    Explore at:
    Dataset updated
    Apr 6, 2022
    Dataset authored and provided by
    SantaCruzCountyGIS
    Area covered
    Description

    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 UTM 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 1:12,000.

  9. a

    Flood Hazard Area

    • hub.arcgis.com
    Updated Apr 17, 2018
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    Baltimore County Government (2018). Flood Hazard Area [Dataset]. https://hub.arcgis.com/maps/BC-GIS::flood-hazard-area
    Explore at:
    Dataset updated
    Apr 17, 2018
    Dataset authored and provided by
    Baltimore County Government
    Area covered
    Description

    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 Maryland Coordinate System, U.S. Survey Foot. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000.

  10. a

    Floodplain 2009

    • hub.arcgis.com
    Updated Oct 13, 2022
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    Calumet Maps (2022). Floodplain 2009 [Dataset]. https://hub.arcgis.com/maps/calumet::floodplain-2009-1
    Explore at:
    Dataset updated
    Oct 13, 2022
    Dataset authored and provided by
    Calumet Maps
    License

    Attribution-ShareAlike 4.0 (CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/
    License information was derived automatically

    Area covered
    Description

    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 UTM 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.

  11. a

    FEMA Flood Zone 2008

    • data-marioncountyfl.opendata.arcgis.com
    • hub.arcgis.com
    Updated Jul 26, 2023
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    Geographic Information Systems - Marion County, Florida (2023). FEMA Flood Zone 2008 [Dataset]. https://data-marioncountyfl.opendata.arcgis.com/datasets/fema-flood-zone-2008-1
    Explore at:
    Dataset updated
    Jul 26, 2023
    Dataset authored and provided by
    Geographic Information Systems - Marion County, Florida
    Area covered
    Description

    Effective August 28, 2008The 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 1:12,000.

  12. a

    Flood Hazard Zones

    • open-government-cityofmobile.hub.arcgis.com
    Updated Mar 6, 2024
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    City of Mobile, Alabama (2024). Flood Hazard Zones [Dataset]. https://open-government-cityofmobile.hub.arcgis.com/datasets/flood-hazard-zones/explore
    Explore at:
    Dataset updated
    Mar 6, 2024
    Dataset authored and provided by
    City of Mobile, Alabama
    Area covered
    Description

    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 UTM 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 1:12,000.

  13. a

    FEMA Flood Hazard Areas

    • opendata-sccgis.opendata.arcgis.com
    • hub.arcgis.com
    Updated Apr 6, 2022
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    SantaCruzCountyGIS (2022). FEMA Flood Hazard Areas [Dataset]. https://opendata-sccgis.opendata.arcgis.com/items/83c172a70d7046fa87e01fe11fc3869e
    Explore at:
    Dataset updated
    Apr 6, 2022
    Dataset authored and provided by
    SantaCruzCountyGIS
    Area covered
    Description

    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 UTM 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 1:12,000.

  14. a

    FEMA FloodZones

    • hub.arcgis.com
    Updated Dec 11, 2019
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    City of Maple Grove (2019). FEMA FloodZones [Dataset]. https://hub.arcgis.com/maps/maplegrovemn::fema-floodzones
    Explore at:
    Dataset updated
    Dec 11, 2019
    Dataset authored and provided by
    City of Maple Grove
    Area covered
    Description

    The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk Information And supporting data used to develop the risk data. The primary risk; classificatons 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 UTM 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 1:12,000.The original feature class has been clipped to the City of Maple Grove, MN boundary with a 1-mile buffer.

  15. d

    Digital Flood Insurance Rate Map Database, Bradford County, Pennsylvania,...

    • datadiscoverystudio.org
    Updated Nov 14, 2017
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    (2017). Digital Flood Insurance Rate Map Database, Bradford County, Pennsylvania, USA. [Dataset]. http://datadiscoverystudio.org/geoportal/rest/metadata/item/bd8e5aff9121449286a0238d75d74816/html
    Explore at:
    Dataset updated
    Nov 14, 2017
    Area covered
    United States
    Description

    description: 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 Arkansas South (FIPS 0302) 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 1:12,000.; abstract: 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 Arkansas South (FIPS 0302) 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 1:12,000.

  16. a

    FEMA Flood Zones

    • hub.arcgis.com
    Updated Feb 8, 2017
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    Martin County, Florida (2017). FEMA Flood Zones [Dataset]. https://hub.arcgis.com/maps/mcgov::fema-flood-zones-5/about
    Explore at:
    Dataset updated
    Feb 8, 2017
    Dataset authored and provided by
    Martin County, Florida
    Area covered
    Description

    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).

  17. a

    Historic FEMA Flood Zones 2008

    • data-marioncountyfl.opendata.arcgis.com
    Updated Aug 30, 2017
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    Geographic Information Systems - Marion County, Florida (2017). Historic FEMA Flood Zones 2008 [Dataset]. https://data-marioncountyfl.opendata.arcgis.com/datasets/historic-fema-flood-zones-2008
    Explore at:
    Dataset updated
    Aug 30, 2017
    Dataset authored and provided by
    Geographic Information Systems - Marion County, Florida
    Area covered
    Description

    Effective August 28, 2008The 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 1:12,000.

  18. a

    Floodplains (FEMA, DFIRM 2011) (File Geodatabase)

    • data-mcplanning.hub.arcgis.com
    Updated Jun 1, 2023
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    Montgomery Maps (2023). Floodplains (FEMA, DFIRM 2011) (File Geodatabase) [Dataset]. https://data-mcplanning.hub.arcgis.com/datasets/69ffc6c6d78e4d26851bbd08d8499173
    Explore at:
    Dataset updated
    Jun 1, 2023
    Dataset authored and provided by
    Montgomery Maps
    License

    MIT Licensehttps://opensource.org/licenses/MIT
    License information was derived automatically

    Description

    The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop 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 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 located or to be located in identified areas having special flood hazards, " 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 DFIRM Database presents the flood risk information depicted on the FIRM in a digital format suitable for use in electronic mapping applications. The DFIRM database is a subset of the Digital FIS database that serves to archive the information collected during the FIS. For more information, contact: GIS Manager Information Technology & Innovation (ITI) Montgomery County Planning Department, MNCPPC T: 301-650-5620

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City of Redding GIS (2017). FEMAFloodHazardArea [Dataset]. https://data-redding.opendata.arcgis.com/datasets/femafloodhazardarea

FEMAFloodHazardArea

Explore at:
Dataset updated
Feb 3, 2017
Dataset authored and provided by
City of Redding GIS
Area covered
Description

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 UTM ZONE 10N projection and coordiante system The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000.

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