Coral Reef and Hardbottom from Unified Florida Reef Tract Map (NODC Accession 0123059)

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Frequently anticipated questions:


What does this data set describe?

Title:
Coral Reef and Hardbottom from Unified Florida Reef Tract Map (NODC Accession 0123059)
Abstract:
This dataset is a subset of the Unified Map representing Coral reef and Hardbottom areas. Version 1.1 - December 2013. The Unified Florida Reef Tract Map (Unified Reef Map) provides a consistent geospatial framework for management, monitoring, and characterization of the Florida reef tract from Martin County to the Dry Tortugas. The Unified Reef Map integrates existing benthic habitat maps of Martin, Palm Beach, Broward, and Miami Counties, Biscayne National Park, Florida Bay, and the Florida Keys, including the Dry Tortugas. This map of the seafloor uses a Unified Classification (UC) system to provide a common and consistent picture of the entire area while retaining the original detailed information specific to different source maps. The UC contains five levels of seafloor classification detail providing flexibility in the scope of analysis. UC Level 0 is the coarsest classification level that provides a consistent view of the entire area. UC Level 4 retains full seafloor description details from source maps which are not necessarily consistent for all areas. Where mapping projects spatially overlap, data are edited to create a seamless and consistent transition. Existing seafloor classification values are also cross-walked to the Coastal and Marine Ecological Classification Standard (CMECS).
  1. How might this data set be cited?
    NCCOS, NOAA, 20140101, Coral Reef and Hardbottom from Unified Florida Reef Tract Map (NODC Accession 0123059).

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -82.990703
    East_Bounding_Coordinate: -80.085266
    North_Bounding_Coordinate: 25.696999
    South_Bounding_Coordinate: 24.368851
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: UnknownCurrentness_Reference: ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: vector digital data
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • GT-polygon composed of chains (6929)
    2. What coordinate system is used to represent geographic features?
      The map projection used is PCS Albers.
      Projection parameters:
      Standard_Parallel: 24.0
      Standard_Parallel: 31.5
      Longitude_of_Central_Meridian: -84.0
      Latitude_of_Projection_Origin: 24.0
      False_Easting: 400000.0
      False_Northing: 0.0
      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.000000004429812072714868
      Ordinates (y-coordinates) are specified to the nearest 0.000000004429812072714868
      Planar coordinates are specified in meter
      The horizontal datum used is D North American 1983.
      The ellipsoid used is GRS 1980.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257222101.
  7. How does the data set describe geographic features?
    Coral_Reef_and_Hardbottom_FKNMS
    benthic habitat map (Source: Producer defined)
    FID
    Internal feature number. (Source: Esri) Sequential unique whole numbers that are automatically generated.
    OBJECTID
    Internal feature number. (Source: Esri) Sequential unique whole numbers that are automatically generated.
    PercentBio
    unknown (Source: FWC)
    Range of values
    Minimum:0
    Maximum:100
    Units:percent
    PercentCor
    percent cover (Source: FWC)
    Range of values
    Minimum:0
    Maximum:100
    Units:percent
    BioCover
    This field retains the original source data classification values (Source: Original source layer)
    Formal codeset
    Codeset Name:BioCover
    Codeset Source:FWC
    GeoformD_1
    Geoform (Source: FWC)
    Formal codeset
    Codeset Name:Geoform
    Codeset Source:FWC
    GeoForm
    This field retains the original source data classification values (Source: Orginal source layer)
    Formal codeset
    Codeset Name:Geoform
    Codeset Source:FWC
    ClassLv4
    Unified Classification Level 4. This is the most detailed thematic classification level. (Source: FWC)
    Formal codeset
    Codeset Name:Benthic Habitat
    Codeset Source:FWC
    ClassLv2
    Unified Classification Level 2 (Source: FWC)
    Formal codeset
    Codeset Name:Benthic Habitat
    Codeset Source:FWC
    ClassLv3
    Unified Classification Level 3 (Source: FWC)
    Formal codeset
    Codeset Name:Benthic Habitat
    Codeset Source:FWC
    ClassLv1
    Unified Classification Level 1 (Source: FWC)
    Formal codeset
    Codeset Name:benthic habitat
    Codeset Source:FWC
    CMECS_Geo
    CMECS Geoform cross-walk (Source: Coastal Marine Ecological Classification System (CMECS))
    Formal codeset
    Codeset Name:CMECS Geo
    Codeset Source:Coastal Marine Ecological Classification System (CMECS)
    CMECS_Bio
    CMECS Biological Cover cross-walk (Source: Coastal Marine Ecological Classification System (CMECS))
    Formal codeset
    Codeset Name:CMECS Bio
    Codeset Source:Coastal Marine Ecological Classification System (CMECS)
    Shape_Area
    Area of feature in internal units squared. (Source: Esri) Positive real numbers that are automatically generated.
    BioCoverDe
    Biological Cover (Source: FWC)
    Formal codeset
    Codeset Name:Biological Cover
    Codeset Source:FWC
    Shape
    Feature geometry. (Source: Esri) Coordinates defining the features.
    GeoformDet
    Geoform (Source: FWC)
    Formal codeset
    Codeset Name:Geoform
    Codeset Source:FWC
    Zone_
    Classification Zone (Source: FWC)
    Formal codeset
    Codeset Name:Zone
    Codeset Source:FWC
    Shape_Leng
    Unknown (Source: Unknown) Unknown
    ClassLv0
    Unified Classification Level 0. This is the coarsest (most general) thematic level. (Source: FWC)
    Formal codeset
    Codeset Name:benthic habitat class
    Codeset Source:FL-FWC

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
  2. Who also contributed to the data set?
    FWC-FWRI
  3. To whom should users address questions about the data?

Why was the data set created?

This subset was developed to support FKNMS management.

How was the data set created?

  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
  3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: None
Use_Constraints:
Acknowledgment of the FWC-FWRI (Florida Fish and Wildlife Conservation Commission-Fish and Wildlife Research Institute) as the data source would be appreciated in any products developed from these data, and such acknowledgment as is standard for citation and legal practices for data source is expected by users of this data. Please cite the original metadata when using portions of the record to create a similar record of slightly altered data, such as reprojection. If any data are modified or adjusted, please share the edited information with FWC. Users should be aware that comparison with other data sets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in mapping conventions, data collection, and computer processes over time. FWC shall not be liable for improper or incorrect use of this data. These data are not legal documents and are not to be used as such. This is not a survey data set and should not be utilized as such. These data are not to be used for navigation.

Who wrote the metadata?

Dates:
Last modified: 15-Dec-2024
Metadata author:
NOAA National Centers for Coastal Ocean Science
1305 east-West hwy
Silver Spring, MD

301-713-3028 (voice)
Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

Generated by mp version 2.9.44 on Mon Jun 30 20:52:55 2025