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DIGITAL FLOOD INSURANCE RATE MAP DATABASE, MARTIN COUNTY, NORTH CAROLINA

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator:North Carolina Foodplain Mapping Program
Publication_Date:20081016
Title:
DIGITAL FLOOD INSURANCE RATE MAP DATABASE, MARTIN COUNTY, NORTH CAROLINA
Geospatial_Data_Presentation_Form:Vector Data
Publication_Information:
Publication_Place:Washington, DC
Publisher:Federal Emergency Management Agency
Other_Citation_Details:
Metadata_File_Name: 37117C_20081016_metadata.txt
Online_Linkage:www.msc.fema.gov and www.ncfloodmaps.com
Description:
Abstract: 
This Flood Insurance Study was produced through a cooperative partnership 
      between the State of North Carolina and FEMA.  The North Carolina Floodplain Mapping 
      Program, through FEMA's Cooperating Technical State (CTS) Initiative, is conducting 
      flood hazard analyses and producing updated, digital FIRM panels for all North Carolina 
      communities.  Additional information regarding the North Carolina Floodplain Mapping 
      Program and the data collected during the mapping process are available at 
      http://www.ncfloodmaps.com.  
      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 the earth's surface using the NC State Plane Coordinate System,
      North American Datum 1983, Units of Feet. The specifications for the horizontal control of
      DFIRM data files are consistent with those required for mapping at a scale of 1:12,000.
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 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 North Carolina
      Floodplain Mapping Information System (NCFMIS) that serves to archive the information collected during the FIS.
      The NCFMIS is available at http://www.ncfloodmaps.com.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:20081016
Currentness_Reference: 
FIRM and FIS effective date
Status:
Progress:Complete
Maintenance_and_Update_Frequency:Irregular
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -77.4513
East_Bounding_Coordinate: -76.7322
North_Bounding_Coordinate: 36.1030
South_Bounding_Coordinate: 35.6524
Keywords:
Theme:
Theme_Keyword_Thesaurus:None
Theme_Keyword:FEMA Flood Hazard Zone
Theme_Keyword:DFIRM
Theme_Keyword:Digital Flood Insurance Rate Map
Theme_Keyword:Special Flood Hazard Area
Theme_Keyword:DFIRM Database
Theme_Keyword:NFIP
Theme_Keyword:SFHA
Theme_Keyword:Flood Insurance Rate Map
Theme_Keyword:FIRM
Theme_Keyword:North Carolina Floodplain Mapping Program
Place:
Place_Keyword_Thesaurus:None
Place_Keyword:MARTIN COUNTY
Place_Keyword:NORTH CAROLINA
Place_Keyword:NORTH CAROLINA
Place_Keyword:NORTH CAROLINA
Place_Keyword:NORTH CAROLINA
Place_Keyword:NORTH CAROLINA
Place_Keyword:NORTH CAROLINA
Place_Keyword:NORTH CAROLINA
Access_Constraints:None
Use_Constraints: 
The hardcopy FIRM and DFIRM and the accompanying FISs are the official designation of SFHAs and
    Base Flood Elevations (BFEs) for the NFIP.  For the purposes of the NFIP, changes to the flood risk
    information published by FEMA may only be performed by FEMA and through the mechanisms established
    in the NFIP regulations (44 CFR Parts 59-78).
    These digital data are produced in conjunction with the hardcopy FIRMs and generally matches the
    hardcopy map exactly.  However the hardcopy flood maps and flood profiles are the authoritative
    documents for the NFIP.
    Acknowledgement of FEMA and the North Carolina Floodplain Mapping Program would be appreciated
    in products derived from these data.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:Federal Emergency Management Agency
Contact_Position:Federal Insurance and Mitigation Administration
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:1-800-358-9616
Contact_Electronic_Mail_Address:www.msc.fema.gov
Native_Data_Set_Environment:
Original data development environment varies. Finishing of the data is done using ESRI's ArcGIS software.
Cross_Reference:
Citation_Information:
Originator:Federal Emergency Management Agency
Publication_Date:20081016
Title:
Flood Insurance Study, MARTIN COUNTY, NORTH CAROLINA
Geospatial_Data_Presentation_Form:Document
Publication_Information:
Publication_Place:Washington, DC
Publisher:Federal Emergency Management Agency
Cross_Reference:
Citation_Information:
Originator:Federal Emergency Management Agency
Publication_Date:20081016
Title:
Flood Insurance Rate Map, MARTIN COUNTY, NORTH CAROLINA
Geospatial_Data_Presentation_Form:Map
Publication_Information:
Publication_Place:Washington, DC
Publisher:Federal Emergency Management Agency
Cross_Reference:
Citation_Information:
Originator:Federal Emergency Management Agency
Publication_Date:20081016
Title:
Raster DFIRM, MARTIN COUNTY, NORTH CAROLINA
Geospatial_Data_Presentation_Form:Raster digital data
Publication_Information:
Publication_Place:Washington, DC
Publisher:Federal Emergency Management Agency
Cross_Reference:
Citation_Information:
Originator:North Carolina Floodplain Mapping Program
Publication_Date:20081016
Title:
Vector digital data, MARTIN COUNTY, NORTH CAROLINA
Geospatial_Data_Presentation_Form:Vector digital data
Publication_Information:
Publication_Place:Raleigh, NC
Publisher:North Carolina Floodplain Mapping Program
Cross_Reference:
Citation_Information:
Originator:North Carolina Floodplain Mapping Program
Publication_Date:20081016
Title:
Digital Orthophoto Quadrangle,, MARTIN COUNTY, NORTH CAROLINA
Geospatial_Data_Presentation_Form:Raster digital data
Publication_Information:
Publication_Place:Raleigh, NC
Publisher:North Carolina Floodplain Mapping Program
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: 
The DFIRM Database consists of countywide 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 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.  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 database 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 this DFIRM database.
      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.
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: 
Data contained in the DFIRM Database files reflect 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.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: 
The DFIRM Database consists of countywide 
        vector files and associated attributes produced in conjunction with the hardcopy 
        FEMA FIRM. The published effective FIRM and DFIRM 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.  
        For streams restudied by detailed and limited detail methods, the 1% and 0.2% annual 
        chance floodplains were delineated using flood elevations determined at each cross 
        section. Between cross sections, the boundaries were interpolated using topographic 
        data acquired using airborne LIDAR. This LIDAR data was acquired during the 
        winter 2000-2001 flying season. The topographic data satisfies a vertical root-mean-
        square error (RMSE) accuracy standard of 20cm (1.3 feet accuracy at the 95% 
        confidence limit) for coastal areas and 25 cm (1.6 feet accuracy at the 95% confidence 
        limit) for non-coastal areas of the State. These data could be contoured at roughly a 2-
        foot vertical contour interval. All elevations were referenced to the NAVD 88 and 
        reflect orthometric heights. Variably spaced, bare-earth digital topographic data in 
        ASCII point file format were combined with imagery (either flown concurrently with 
        the LIDAR data or using existing digital orthophotos) to establish a Triangulated 
        Irregular Network (TIN) of digital elevation points, which include selected breaklines 
        to be used for hydraulic modeling. Furthermore, a uniformly spaced sampling of the 
        TIN resulted in uniformly spaced Digital Elevation Models (DEMs), with 20 ft x 20 ft 
        post spacing, which was generated in multiple file formats. For coastal floodplains, 
        after analyzing wave heights along each transect, wave elevations were interpolated 
        between transects. Various source data were used in the interpolation, including 
        topographic data described above.
        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 FEMA's DFIRM database was also performed.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: 
The DFIRM Database consists of countywide 
        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.  
        For streams restudied by detailed and limited detail methods, the 1% and 0.2% annual 
        chance floodplains were delineated using flood elevations determined at each cross 
        section. Between cross sections, the boundaries were interpolated using topographic 
        data acquired using airborne LIDAR. This LIDAR data was acquired during the 
        winter 2000-2001 flying season. The topographic data satisfies a vertical root-mean-
        square error (RMSE) accuracy standard of 20cm (1.3 feet accuracy at the 95% 
        confidence limit) for coastal areas and 25 cm (1.6 feet accuracy at the 95% confidence 
        limit) for non-coastal areas of the State. These data could be contoured at roughly a 2-
        foot vertical contour interval. All elevations were referenced to the NAVD 88 and 
        reflect orthometric heights. Variably spaced, bare-earth digital topographic data in 
        ASCII point file format were combined with imagery (either flown concurrently with 
        the LIDAR data or using existing digital orthophotos) to establish a Triangulated 
        Irregular Network (TIN) of digital elevation points, which include selected breaklines 
        to be used for hydraulic modeling. Furthermore, a uniformly spaced sampling of the 
        TIN resulted in uniformly spaced Digital Elevation Models (DEMs), with 20 ft x 20 ft 
        post spacing, which was generated in multiple file formats. For coastal floodplains, 
        after analyzing wave heights along each transect, wave elevations were interpolated 
        between transects. Various source data were used in the interpolation, including 
        topographic data described above.
        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 FEMA's DFIRM database was also performed.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator:North Carolina Floodplain Mapping Program
Publication_Date:20081016
Title:
MARTIN COUNTY, NORTH CAROLINA.
Geospatial_Data_Presentation_Form:Vector digital data
Publication_Information:
Publication_Place:Raleigh, NC
Publisher:North Carolina Floodplain Mapping Program
Other_Citation_Details:
This Flood Insurance Study was produced through a cooperative partnership between the State of North Carolina and FEMA. The North Carolina Floodplain Mapping Program, through FEMA's Cooperating Technical State (CTS) Initiative, is conducting flood hazard analyses and producing updated, digital FIRM panels for all North Carolina communities. A more detailed description of the areas studied and the engineering methods used can be found in sections 4.0 and 5.0 of the accompanying Flood Insurance Study report. Additional information regarding the North Carolina Floodplain Mapping Program and the data collected during the mapping process are available at http://www.ncfloodmaps.com
Source_Scale_Denominator:6000 12000
Type_of_Source_Media:CD-ROM
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:20081016
Source_Currentness_Reference:
Effective date
Source_Citation_Abbreviation:
STUDY4
Source_Contribution: 
Spatial and attribute information for cross sections, floodplain information, BFEs, coastal transects, general structures, and station start descriptions.
Source_Information:
Source_Citation:
Citation_Information:
Originator:North Carolina Floodplain Mapping Program
Publication_Date:20081016
Title:
MARTIN COUNTY, NORTH CAROLINA, Digital Flood Insurance Rate Map
Geospatial_Data_Presentation_Form:Vector digital data
Publication_Information:
Publication_Place:Raleigh, NC
Publisher:North Carolina Floodplain Mapping Program
Other_Citation_Details:
Grid of FIRM panels created for this Flood Insurance Study.
Source_Scale_Denominator:6000 12000
Type_of_Source_Media:CD-ROM
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:20081016
Source_Currentness_Reference:
Effective date
Source_Citation_Abbreviation:
STUDY1
Source_Contribution: 
Grid of DFIRM panels.
Source_Information:
Source_Citation:
Citation_Information:
Originator:National Geodetic Survey
Publication_Date:20081016
Title:
Geodetic bench marks
Geospatial_Data_Presentation_Form:Vector digital data
Publication_Information:
Publication_Place:Silver Spring, MD
Publisher:National Geodetic Survey
Other_Citation_Details:
The National Geodetic Survey (NGS) serves as the Nation's depository for geodetic data in the National Spatial Reference System. These geodetic data include bench marks and other control points that provide the base of reference for latitude, longitude, height, scale, orientation, and gravity measurements used throughout the United States.
Source_Scale_Denominator:24000
Type_of_Source_Media:CD-ROM
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:2007
Source_Currentness_Reference:
Publication date
Source_Citation_Abbreviation:
NGS1
Source_Contribution: 
National Geodetic Survey reference points (bench marks).
Source_Information:
Source_Citation:
Citation_Information:
Originator:North Carolina Geodetic Survey
Publication_Date:2007
Title:
Geodetic bench marks
Geospatial_Data_Presentation_Form:Vector digital data
Publication_Information:
Publication_Place:Raleigh, NC
Publisher:North Carolina Geodetic Survey
Other_Citation_Details:
The North Carolina Geodetic Survey (NCGS) is the lead agency in North Carolina responsible for the coordination of geodetic activities among State agencies. NCGS coordinates the development, adoption, and promotion of: (a) classification standards of content, format, and accuracy for geodetic data and (b) standards and specifications for geodetic surveying techniques and technologies for use by all State agencies and, encourages their use by non-state agencies. NCGS disseminates information on technological improvements for collecting geodetic data and coordinates the plans and requirements for geodetic activities of State agencies. The NCGS Geodetic Survey Section establishes precisely located monuments on the North Carolina Grid System and Bench Marks referenced to a vertical datum (NGVD 1929 and NAVD 1988). The Geodetic Survey Section establishes and maintains the official survey base of the state of North Carolina to support mapping, boundary determination, property delineation, infrastructure development, resource evaluation surveys, and scientific applications.
Source_Scale_Denominator:24000
Type_of_Source_Media:CD-ROM
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:2007
Source_Currentness_Reference:
Publication date
Source_Citation_Abbreviation:
NCGS1
Source_Contribution: 
North Carolina Geodetic Survey reference points (bench marks).
Source_Information:
Source_Citation:
Citation_Information:
Originator:North Carolina Center for Geographic Information and Analysis
Publication_Date:20081016
Title:
Political boundaries
Geospatial_Data_Presentation_Form:Vector digital data
Publication_Information:
Publication_Place:Raleigh, NC
Publisher:North Carolina Floodplain Mapping Program
Other_Citation_Details:
Political boundaries shown on the DFIRM were derived from multiple sources including N.C. Department of Transporation, the N.C. Geographic Database, and Martin County. See the base map source text document for a listing of political boundary sources. map source text document for a listing of political boundary sources.
Source_Scale_Denominator:24000
Type_of_Source_Media:CD-ROM
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:20030807 20050101
Source_Currentness_Reference:
Publication date
Source_Citation_Abbreviation:
POL1
Source_Contribution: 
Spatial and attribute information for political entities (counties, municipalities) and military and Native American lands.
Source_Information:
Source_Citation:
Citation_Information:
Originator:North Carolina Center for Geographic Information and Analysis
Publication_Date:2007
Title:
Transportation features
Geospatial_Data_Presentation_Form:Vector digital data
Publication_Information:
Publication_Place:Raleigh, NC
Publisher:North Carolina Floodplain Mapping Program
Other_Citation_Details:
Transportation features were derived from multiple sources including N.C. Department of Transporation, the N.C. Geographic Database, and Martin County. See the base map source text document for a listing of transportation feature sources.
Source_Scale_Denominator:24000
Type_of_Source_Media:CD-ROM
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:20030807 20050101
Source_Currentness_Reference:
Publication date
Source_Citation_Abbreviation:
CGIA1
Source_Contribution: 
Spatial and attribute information for transportation features including roads, railroads, and airports.
Source_Information:
Source_Citation:
Citation_Information:
Originator:North Carolina Floodplain Mapping Program
Publication_Date:20081016
Title:
MARTIN COUNTY, NORTH CAROLINA, Digital Flood Insurance Rate Map
Geospatial_Data_Presentation_Form:Vector digital data
Publication_Information:
Publication_Place:Raleigh, NC
Publisher:North Carolina Floodplain Mapping Program
Other_Citation_Details:
Base map surface water features digitized from Digital Orthophoto Quadrangles.
Source_Scale_Denominator:24000
Type_of_Source_Media:CD-ROM
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:2000919
Source_Currentness_Reference:
Effective date
Source_Citation_Abbreviation:
STUDY2
Source_Contribution: 
Base map surface water features.
Source_Information:
Source_Citation:
Citation_Information:
Originator:North Carolina Center for Geographic Information and Analysis
Publication_Date:1998
Title:
Digital Orthophoto Quadrangle - 1998 Color Infrared
Geospatial_Data_Presentation_Form:Remote sensing image
Publication_Information:
Publication_Place:Raleigh, NC
Publisher:North Carolina Center for Geographic Information and Analysis
Other_Citation_Details:
The digital orthophoto quadrangle (DOQ) is a 1-meter ground resolution, quarter-quadrangle 3.75-minutes of latitude by 3.75-minutes of longitude) image cast on the North Carolina State Plane projection and the North American Datum of 1983 (NAD83). The imagery is based on color infra-red 1998 photography supplemented with limited 1999 photography. Contributors to this data set include the State of North Carolina and USGS, National Mapping Division.
Source_Scale_Denominator:12000
Type_of_Source_Media:CD-ROM
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:1998
Source_Currentness_Reference:
Ground conditions
Source_Citation_Abbreviation:
DOQ1
Source_Contribution: 
Location of roads, railroads, bridges, streams, and other physical features used in the Tar-Pamlico River Basin portion of the Martin County FIRM..
Source_Information:
Source_Citation:
Citation_Information:
Originator:U.S. Geological Survey
Publication_Date:1999
Title:
7.5-Minute Quadrangle Grid
Geospatial_Data_Presentation_Form:Vector digital data
Publication_Information:
Publication_Place:Redlands, CA
Publisher:ESRI
Other_Citation_Details:
Grid of USGS 7.5-Minute Series Topographic Maps.
Source_Scale_Denominator:24000
Type_of_Source_Media:CD-ROM
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:1999
Source_Currentness_Reference:
Publication date
Source_Citation_Abbreviation:
USGS1
Source_Contribution: 
Grid of USGS 7.5-Minute Series Topographic Maps.
Source_Information:
Source_Citation:
Citation_Information:
Originator:State of North Carolina
Publication_Date:2005
Title:
Martin County, North Carolina Aerial Photography
Geospatial_Data_Presentation_Form:Remote sensing image
Publication_Information:
Publication_Place:Raleigh, NC
Publisher:North Carolina Floodplain Mapping Program
Other_Citation_Details:
The State of North Carolina flew aerial phiotography in 2005.
Source_Scale_Denominator:12000
Type_of_Source_Media:CD-ROM
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:2005
Source_Currentness_Reference:
Ground conditions
Source_Citation_Abbreviation:
DOQ2
Source_Contribution: 
Location of roads, railroads, bridges, streams, and other physical features. These features were used for the Roanoke River Basin portion of the Martin County FIRM.
Process_Step:
Process_Description: 
The DFIRM Database is 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 report. 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. 
        hardcopy FIRM and the final FIS report. The specifics of the hydrologic and hydraulic 
        analyses performed are detailed in the FIS report. 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.
Source_Used_Citation_Abbreviation:
STUDY4, STUDY1, NGS1, NCGS1, POL1, CGIA1, STUDY2, DOQ1, USGS1, DOQ2
Process_Date:20070919
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Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method:Vector and Raster
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type:Point
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type:String
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type:GT-polygon composed of chains
Raster_Object_Information:
Raster_Object_Type:Pixel
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name:State Plane Coordinate System 1983
State_Plane_Coordinate_System:
SPCS_Zone_Identifier:3200
Lambert_Conformal_Conic:
Standard_Parallel:34.3333333333333
Standard_Parallel:36.1666666666667
Longitude_of_Central_Meridian:-79
Latitude_of_Projection_Origin:33.75
False_Easting:2000000.00261667
False_Northing:0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method:Coordinate pair
Coordinate_Representation:
Abscissa_Resolution:0.000512
Ordinate_Resolution:0.000512
Planar_Distance_Units:Feet
Geodetic_Model:
Horizontal_Datum_Name:NAD 83
Ellipsoid_Name:Geodetic Reference System 80
Semi-major_Axis:6378137.0
Denominator_of_Flattening_Ratio:298.26
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name:NAVD88
Altitude_Resolution:0.03
Altitude_Distance_Units:feet
Altitude_Encoding_Method:Attribute values
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Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview: 
The DFIRM Database is made up of several data themes containing both spatial and attribute information.
      These data together represent the current flood risk for the subject area as identified by FEMA. The
      attribute tables include SFHA locations, flood zone designations, BFEs, political entities, cross-section
      locations, FIRM panel information, and other data related to the NFIP.
Entity_and_Attribute_Detail_Citation: 
Appendix LAppendix L of FEMA's Guidelines and Specifications 
      for FEMA Flood Hazard Mapping Partners contains a detailed description of each attribute 
      code and a reference to other relevant information.
      The following tables are included in this data set:
      l_comm_info 
      l_stn_start 
      study_info 
      s_bfe 
      s_base_index 
      s_firm_pan 
      s_fld_haz_ar 
      s_fld_haz_ln 
      s_label_ld 
      s_perm_bmk 
      s_pol_ar 
      s_pol_ln 
      s_quad_index 
      s_trnsport_ln 
      s_wtr_ar 
      s_wtr_ln 
      s_xs 
      s_label_pt
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:FEMA, Map Service Center
Contact_Address:
Address_Type:mailing address
Address: 
P.O. Box 1038
City:Jessup
State_or_Province:Maryland
Postal_Code:20794-1038
Country:USA
Contact_Voice_Telephone:1-800-358-9616
Contact_Electronic_Mail_Address:www.msc.fema.gov
Contact Instructions: 
Data requests must include the full name of the community or county and the FIRM panel number(s) or the
        7.5- minute series quadrangle sheet area(s) covered by the request.
Distribution_Liability: 
No warranty expressed or implied is made by FEMA regarding the utility of the data on any other system
    nor shall the act of distribution constitute any such warranty. FEMA will warrant the delivery of this
    product in a computer-readable format, and will offer appropriate adjustment of credit when the product
    is determined unreadable by correctly adjusted computer input peripherals, or when the physical medium
    is delivered in damaged condition. Requests for adjustment of credit must be made within 90 days from
    the date of this shipment from the ordering site.
Standard_Order_Process:
Non-digital_Form:
Printed FIRMs and Raster DFIRMs that match this data set are available from FEMA at the Map Service Center, cited above.
Digital_Form:
Digital_Transfer_Information:
Format_Name:ESRI Arc/Info Export file
Format_Version_Number:1
Digital_Transfer_Option:
Offline_Option:
Offline_Media:CD-ROM
Recording_Format:ISO 9600
Digital_Form:
Digital_Transfer_Information:
Format_Name:MapInfo Interchange file
Format_Version_Number:1
Digital_Transfer_Option:
Offline_Option:
Offline_Media:CD-ROM
Recording_Format:ISO 9600
Digital_Form:
Digital_Transfer_Information:
Format_Name:ESRI Shapefile
Format_Version_Number:1
Digital_Transfer_Option:
Offline_Option:
Offline_Media:CD-ROM
Recording_Format:ISO 9600
Fees:Contact Distributor
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Metadata_Reference_Information:
Metadata_Date:20090108
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:Federal Emergency Management Agency
Contact_Position:Federal Insurance and Mitigation Administration
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:1-800-358-9616
Contact_Electronic_Mail_Address:www.msc.fema.gov
Metadata_Standard_Name:FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version:FGDC-STD-001-1998
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FEMA NFIP Metadata Stylesheet (adapted from the NPS and ESRI "FGDC Classic" stylesheets)