Metadata:
  Identification_Information:
    Citation:
      Citation_Information:
        Originator: Kimberly K. Yates
        Originator: David G. Zawada
        Originator: Stephanie R. Arsenault
        Publication_Date: 20190801
        Title: Projected Seafloor Elevation Along the Florida Reef Tract From Port St. Lucie to Marquesas Key, Florida-25 Years From 2001 Based on Historical Rates of Mean Erosion
        Geospatial_Data_Presentation_Form: Multimedia presentation
        Publication_Information:
          Publication_Place: St. Petersburg, FL
          Publisher: U.S. Geological Survey
        Online_Linkage: https://doi.org/10.5066/P9YCVIZK
        Larger_Work_Citation:
          Citation_Information:
            Originator: Kimberly K. Yates
            Originator: David G. Zawada
            Originator: Nathan A. Smiley
            Originator: Ginger Tiling-Range
            Publication_Date: 20170420
            Title: Divergence of seafloor elevation and sea level rise in coral reef ecosystems
            Geospatial_Data_Presentation_Form: Publication
            Publication_Information:
              Publication_Place: Munich, Germany
              Publisher: Biogeosciences
            Online_Linkage: https://doi.org/10.5194/bg-14-1739-2017
    Description:
      Abstract: The U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted research to quantify the combined effect of all constructive and destructive processes on modern coral reef ecosystems by projecting future regional-scale changes in seafloor elevation along the Florida Reef Tract, Florida (FL). USGS staff used historical bathymetric point data from the 1930's (National Oceanic and Atmospheric Administration (NOAA) Office of Coast Survey, see Yates and others, 2017) and light detection and ranging (lidar)-derived data acquired in 2002 (Brock and others, 2006, 2007) to calculate historical seafloor elevation changes in the Upper Florida Keys (UFK) (Yates and others, 2017). Using those changes in seafloor elevation, annual rates of erosion were calculated for 13 habitat types found in the UFK reef tract. The annual rate of mean erosion for each habitat type was applied to a digital elevation model (DEM) extending from Port St. Lucie to Marquesas Key, FL that was modified from the NOAA National Centers for Environmental Information (NCEI) U.S. Coastal Relief Model coastal DEM (NOAA, 2001) to project future seafloor elevation (from 2001) along the Florida Reef Tract. Grid resolution for the DEM is 3-arc seconds (approximately 90 meters (m)).
      Purpose: These data were used to determine 25-year future seafloor elevation changes (from 2001) along the Florida Reef Tract, based on mean erosion.
      Supplemental_Information: USGS lidar elevation measurements (used in Yates and others, 2017, 2018) were collected over the Upper Florida Keys using the first-generation National Aeronautics and Space Administration (NASA) Experimental Advanced Airborne Research Lidar (EAARL), a pulsed laser ranging system mounted on board an aircraft to measure ground elevation, vegetation canopy, and coastal topography. The system uses high-frequency laser beams directed at the Earth's surface through an opening in the bottom of the aircraft's fuselage. The laser system records the time difference between emission of the laser beam and the reception of the reflected laser signal in the aircraft. Data were collected under Florida Keys National Marine Sanctuary permit FKNMS-2016-068.
    Time_Period_of_Content:
      Time_Period_Information:
        Single_Date/Time:
          Calendar_Date: 2019
      Currentness_Reference: publication date
    Status:
      Progress: Complete
      Maintenance_and_Update_Frequency: None planned
    Spatial_Domain:
      Bounding_Coordinates:
        West_Bounding_Coordinate: -82.1804166667
        East_Bounding_Coordinate: -79.9820833342
        North_Bounding_Coordinate: 27.2645833333
        South_Bounding_Coordinate: 24.4279166678
    Keywords:
      Theme:
        Theme_Keyword_Thesaurus: ISO 19115 Topic Category
        Theme_Keyword: geoscientificInformation
        Theme_Keyword: elevation
        Theme_Keyword: oceans
      Theme:
        Theme_Keyword_Thesaurus: USGS Thesaurus
        Theme_Keyword: marine geology
        Theme_Keyword: sea-floor characteristics
        Theme_Keyword: sea-level change
        Theme_Keyword: reef ecosystems
        Theme_Keyword: coelenterates
        Theme_Keyword: lidar
        Theme_Keyword: digital elevation models
      Theme:
        Theme_Keyword_Thesaurus: None
        Theme_Keyword: seafloor elevation
        Theme_Keyword: sea level rise
        Theme_Keyword: seafloor accretion
        Theme_Keyword: seafloor erosion
        Theme_Keyword: elevation change
        Theme_Keyword: altimetry
        Theme_Keyword: submerged topography
      Theme:
        Theme_Keyword_Thesaurus: Global Change Master Science Directory
        Theme_Keyword: OCEAN > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH
        Theme_Keyword: OCEAN > COASTAL PROCESSES > COASTAL ELEVATION
        Theme_Keyword: OCEAN > COASTAL PROCESSES > CORAL REEFS
        Theme_Keyword: OCEAN > COASTAL PROCESSES > EROSION
        Theme_Keyword: OCEAN > COASTAL PROCESSES > SEA LEVEL RISE
        Theme_Keyword: DOI/USGS/CMG > COASTAL AND MARINE GEOLOGY, U.S. GEOLOGICAL SURVEY, U.S. DEPARTMENT OF INTERIOR
      Theme:
        Theme_Keyword_Thesaurus: GCMD Instrument
        Theme_Keyword: LIDAR > LIGHT DETECTION AND RANGING
      Place:
        Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
        Place_Keyword: Port Saint Lucie
        Place_Keyword: Miami
        Place_Keyword: Marquesas Keys
        Place_Keyword: Florida Keys
        Place_Keyword: Florida
      Place:
        Place_Keyword_Thesaurus: None
        Place_Keyword: Florida Reef Tract
      Stratum:
        Stratum_Keyword_Thesaurus: None
        Stratum_Keyword: submerged
        Stratum_Keyword: seafloor
      Temporal:
        Temporal_Keyword_Thesaurus: None
        Temporal_Keyword: 2001-2026
    Access_Constraints: None
    Use_Constraints: Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. The U.S. Geological Survey requests to be acknowledged as originator of these data in future products or derivative research.
    Point_of_Contact:
      Contact_Information:
        Contact_Person_Primary:
          Contact_Person: Kimberly K. Yates
          Contact_Organization: Southeast Region: ST. PETE COASTAL & MARINE SCIENCE CENTER
        Contact_Position: Research Oceanographer
        Contact_Address:
          Address_Type: mailing and physical
          Address: 600 4Th Street South
          City: St. Petersburg
          State_or_Province: FL
          Postal_Code: 33701
          Country: United States
        Contact_Voice_Telephone: 727-502-8059
        Contact_Electronic_Mail_Address: kyates@usgs.gov
    Cross_Reference:
      Citation_Information:
        Originator: John C. Brock
        Originator: C. Wayne Wright
        Originator: Matt Patterson
        Originator: Amar Nayegandhi
        Originator: Judd Patterson
        Originator: Melanie S. Harris
        Originator: Lance Mosher
        Publication_Date: 2006
        Title: EAARL Submarine Topography—Biscayne National Park
        Series_Information:
          Series_Name: U.S. Geological Survey Open-File Report
          Issue_Identification: 2006-1118
        Publication_Information:
          Publication_Place: St. Petersburg, FL
          Publisher: U.S. Geological Survey
        Online_Linkage: https://pubs.usgs.gov/of/2006/1118/
    Cross_Reference:
      Citation_Information:
        Originator: John C. Brock
        Originator: C. Wayne Wright
        Originator: Amar Nayegandhi
        Originator: Matt Patterson
        Originator: Iris Wilson
        Originator: Laurenda J. Travers
        Publication_Date: 2007
        Title: EAARL Submarine Topography – Northern Florida Keys Reef Tract
        Series_Information:
          Series_Name: U.S. Geological Survey Open-File Report
          Issue_Identification: 2007-1432
        Publication_Information:
          Publication_Place: St. Petersburg, FL
          Publisher: U.S. Geological Survey
        Online_Linkage: https://doi.org/10.3133/ofr20071432
  Data_Quality_Information:
    Attribute_Accuracy:
      Attribute_Accuracy_Report: Datasets were visually compared (with other overlapping datasets, satellite images, and maps) by USGS staff in Esri ArcGIS for identification of anomalous elevations or data inconsistencies. Where elevation inconsistencies occurred, the most recent and/or highest resolution dataset was selected for use in that region.
    Logical_Consistency_Report: Data cover the area specified for this project, without any known issues.
    Completeness_Report: This dataset is considered complete for the information presented, as described in the abstract section. Users are advised to read the rest of the metadata record and Yates and others (2017) carefully for additional details.
    Positional_Accuracy:
      Horizontal_Positional_Accuracy:
        Horizontal_Positional_Accuracy_Report: Due to the cell size of the gridded National Ocean Service (NOS) data (NOAA, 2001), assume a horizontal accuracy no better than 3 arc-seconds (or roughly 90 m).
      Vertical_Positional_Accuracy:
        Vertical_Positional_Accuracy_Report: The vertical datum for the source bathymetric data (NOAA, 2001) was generally mean lower low water (MLLW). Source topographic data were in the North American Vertical Datum of 1988 (NAVD88). The differences between these datums are less than the vertical accuracy of the Coastal Relief Model (CRM), consequently, users can assign Mean Sea Level to the CRM, just recognize that the elevation values may not be as accurate as desired. Assume a vertical accuracy no better than 1 m for any elevation values in the CRM. Because of its relatively large cell size (3 arc-seconds or roughly 90 m), no effort was made to establish a common vertical datum as the uncertainty in the elevation value of each cell exceeds the differences between vertical datums (typically sub-meter).
    Lineage:
      Source_Information:
        Source_Citation:
          Citation_Information:
            Originator: National Centers for Environmental Information, National Environmental Satellite, Data, and Information Service, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
            Publication_Date: 20010101
            Title: U.S. Coastal Relief Model Vol.3 - Florida and East Gulf of Mexico
            Geospatial_Data_Presentation_Form: NetCDF File
            Publication_Information:
              Publication_Place: Boulder, Colorado
              Publisher: National Oceanic and Atmospheric Administration
            Online_Linkage: https://data.nodc.noaa.gov/cgi-bin/iso?id=gov.noaa.ngdc.mgg.dem:307
        Type_of_Source_Media: Digital Elevation Model
        Source_Time_Period_of_Content:
          Time_Period_Information:
            Range_of_Dates/Times:
              Beginning_Date: 19990101
              Ending_Date: 20180101
          Source_Currentness_Reference: ground condition
        Source_Citation_Abbreviation: U.S. Coastal Relief Model
        Source_Contribution: The DEM was used as the starting elevation data to calculate future elevation based on data from the Upper Florida Keys per habitat type.
      Source_Information:
        Source_Citation:
          Citation_Information:
            Originator: Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute
            Publication_Date: 20170113
            Title: Unified Florida Reef Tract Map Version 2.0
            Geospatial_Data_Presentation_Form: Shapefile
            Publication_Information:
              Publication_Place: St. Petersburg, FL
              Publisher: Fish and Wildlife Research Institute
            Online_Linkage: http://ocean.floridamarine.org/IntegratedReefMap/UnifiedReefTract.htm
        Type_of_Source_Media: Vector digital data
        Source_Time_Period_of_Content:
          Time_Period_Information:
            Range_of_Dates/Times:
              Beginning_Date: 19910101
              Ending_Date: 20130101
          Source_Currentness_Reference: ground condition
        Source_Citation_Abbreviation: Habitat file
        Source_Contribution: This shapefile was used to divide the DEM by habitat types using Unified Classification (UC) Class Level 2.
      Source_Information:
        Source_Citation:
          Citation_Information:
            Originator: Kimberly K. Yates, David G. Zawada, Stephanie R. Arsenault
            Publication_Date: 2018
            Title: Projected Seafloor Elevation Change in the Upper Florida Keys 25, 50, 75, and 100 Years From 2002
            Geospatial_Data_Presentation_Form: Tabular digital data
            Publication_Information:
              Publication_Place: St. Petersburg, FL
              Publisher: U.S. Geological Survey
            Online_Linkage: https://doi.org/10.5066/P9CI9LNH
        Type_of_Source_Media: CSV
        Source_Time_Period_of_Content:
          Time_Period_Information:
            Range_of_Dates/Times:
              Beginning_Date: 19300101
              Ending_Date: 20020101
          Source_Currentness_Reference: ground condition
        Source_Citation_Abbreviation: Upper Florida Keys Seafloor Elevation Rate of Change
        Source_Contribution: This data release contains the UFK projected seafloor elevation change for 13 habitat types that were applied to the Florida Reef Tract DEM.
      Process_Step:
        Process_Description: Step 1: The original U.S. Coastal Relief Model Vol.3 - Florida and East Gulf of Mexico DEM was downloaded from https://data.nodc.noaa.gov/cgi-bin/iso?id=gov.noaa.ngdc.mgg.dem:307. The network common data format (netCDF) DEM file was converted to a tagged image file format (TIFF) using Blue Marble Global Mapper version 19.1.0. All remaining steps were completed with Esri ArcGIS Desktop Advanced version 10.6. Using the original TIFF, a footprint of the DEM was created with the "Reclassify (Spatial Analyst)" tool in ArcToolbox by replacing all old data values with 1 and the "No Data" value with 0 to create a raster file. Then, the "Raster to Polygon (Conversion)" tool was used to create a footprint of the original Florida Reef Tract DEM by converting the raster file to a polygon shapefile (SHP).
        Process_Date: 2018
      Process_Step:
        Process_Description: Step 2: The original Unified Florida Reef Tract Map version 2.0 polygon SHP file was downloaded from http://ocean.floridamarine.org/IntegratedReefMap/UnifiedReefTract.htm. Using Esri ArcGIS, the Artificial, Land, and Mangrove areas (ClassLv2) were removed from the habitat SHP file using the "Select by Attribute" tool to select the three habitat types, and then the Editor Toolbox to delete them.
        Process_Date: 2018
      Process_Step:
        Process_Description: Step 3: The original Florida Reef Tract DEM TIFF (from Step 1), was clipped to the extent of the modified habitat SHP file (from Step 2) using the "Clip (Data Management)" tool in Esri ArcGIS by specifying the Florida Reef Tract DEM TIFF as the 'Input Raster' and the modified habitat SHP file as the 'Output Extent'. The clipped TIFF was used to extract two shoreline contours with the "Contour List (Spatial Analyst)" tool by adding 'Contour values' for 0-m, 0.05 m and -0.4 m contours. The shoreline contour SHP file was manually connected across inlets and gaps using the "Straight Segment" tool in the Editor Toolbox to draw straight lines between the seaward most points of channels or other breaks along the coastline. The backshore was removed from the contour SHP file by using the "Buffer (Analysis)" tool with a 'Distance Linear unit' of 1000 m. Then, the shoreline contour was smoothed with the "Smooth Line (Cartography)" tool using the Polynomial Approximation with Exponential Kernel (PAEK) smoothing algorithm and a 50-m smoothing tolerance. Using the extended contour SHP file, a polygon SHP file was created using the "Feature to Polygon (Data Management)" tool by specifying the contour SHP file as the 'Input Features', to create the Coastal Clip SHP file. The clipped DEM TIFF was modified further using the "Clip (Data Management)" tool to remove coastal land areas by adding the DEM TIFF as the 'Input Raster' and the Coastal Clip SHP file as the 'Output Extent', creating the FloridaReefTract_ElevationSurface_OriginalClip TIFF.
        Process_Date: 2018
      Process_Step:
        Process_Description: Step 4: The clipped habitat SHP file (from Step 2) was modified by removing coastal land areas using the "Clip (Analysis)" tool with the habitat SHP file as the 'Input Features' and the Coastal Clip SHP file (from Step 3) as the 'Clip Features', creating the FloridaReefTract_Habitat_Clip SHP file.
        Process_Date: 2018
      Process_Step:
        Process_Description: Step 5: Mean future elevation for each habitat type in the FloridaReefTract_ElevationSurface_OriginalClip DEM was calculated by applying previously published mean erosion values in the Upper Florida Keys (UFK) that were projected 25 years into the future from the year 2002 (Yates and others, 2018, https://doi.org/10.5066/P9CI9LNH). Mean projected erosion rates in the UFK were compiled by habitat type into a comma separated values (CSV) file using Microsoft Excel 2016.
        Process_Date: 2018
      Process_Step:
        Process_Description: Step 6: Using the FloridaReefTract_Habitat_Clip SHP file in Esri ArcGIS, individual polygon SHP files were created for each habitat type using the "Select by Attribute" tool and exporting each habitat type as a separate SHP file. Individual DEMs were created from the FloridaReefTract_ElevationSurface_OriginalClip TIFF using the "Clip (Data Management)" tool to clip the full DEM to the extent of each habitat type SHP file by specifying the FloridaReefTract_ElevationSurface_OriginalClip as the 'Input Raster' and the habitat type SHP file as the 'Output Extent'. The "Raster Calculator (Spatial Analyst)" tool was used to project future erosion per habitat type by modifying individual habitat DEMs by adding or subtracting the corresponding 'Mean projected erosion 25 years from 2002 in the Upper Florida Keys (m/25 years)' from the 25_Year_FloridaReefTract_Seafloor_Projection_MeanErosion CSV file. Individual habitat DEMs were merged together using the "Mosaic to New Raster (Data Management)" tool with the 'Pixel Type' set to 32_BIT_FLOAT, 'Number of Bands' set to 1 and the 'Mosaic Operator' set to MEAN to create the final 25_Year_FloridaReefTract_Seafloor_Projection_DEM_MeanErosion TIFF file.
        Process_Date: 2018
  Spatial_Data_Organization_Information:
    Direct_Spatial_Reference_Method: Raster
    Raster_Object_Information:
      Raster_Object_Type: Grid Cell
      Row_Count: 3404
      Column_Count: 2638
      Vertical_Count: 1
  Spatial_Reference_Information:
    Horizontal_Coordinate_System_Definition:
      Geographic:
        Latitude_Resolution: 8.3E-4
        Longitude_Resolution: 8.3E-4
        Geographic_Coordinate_Units: Decimal degrees
      Geodetic_Model:
        Horizontal_Datum_Name: World Geodetic System of 1984 (WGS84)
        Ellipsoid_Name: WGS_1984
        Semi-major_Axis: 6378137.0
        Denominator_of_Flattening_Ratio: 298.257223563
    Vertical_Coordinate_System_Definition:
      Depth_System_Definition:
        Depth_Datum_Name: Mean lower low water (MLLW)
        Depth_Resolution: 1.0
        Depth_Distance_Units: meters
        Depth_Encoding_Method: Explicit depth coordinate included with horizontal coordinates
  Entity_and_Attribute_Information:
    Detailed_Description:
      Entity_Type:
        Entity_Type_Label: 25_Year_FloridaReefTract_Seafloor_Projection_MeanErosion.csv
        Entity_Type_Definition: This file contains elevation statistics, provided in CSV format, for each habitat type found in the UFK. These data were used to compute the 25-year (from 2001) projected seafloor elevation change along the Florida Reef Tract.
        Entity_Type_Definition_Source: USGS
      Attribute:
        Attribute_Label: Habitat types in Florida Reef Tract study site
        Attribute_Definition: The habitat types found in the Florida Reef Tract. Habitat types are defined by the Unified Florida Reef Tract Map Version 2.0 and based on the Unified Classification (UC) system Class Level 2.
        Attribute_Definition_Source: Florida Fish and Wildlife Conservation Commission (FWC)
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Total study site
            Enumerated_Domain_Value_Definition: The total Florida Reef Tract study site, includes all habitat types.
            Enumerated_Domain_Value_Definition_Source: USGS
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Aggregate reef
            Enumerated_Domain_Value_Definition: Aggregate reef larger than 1 hectare (ha), contiguous reef, lacking sand channels.
            Enumerated_Domain_Value_Definition_Source: FWC
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Colonized pavement
            Enumerated_Domain_Value_Definition: Contiguous to patchy pavement, lacking spur and groove channel formation, presence of macroalgae, hard coral, gorgonians, and other sessile invertebrates, dense enough to obscure underlying rock.
            Enumerated_Domain_Value_Definition_Source: FWC
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Dredged and excavated
            Enumerated_Domain_Value_Definition: Dredged and excavated areas.
            Enumerated_Domain_Value_Definition_Source: FWC
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Individual or aggregated patch reef
            Enumerated_Domain_Value_Definition: Patch reefs smaller than 1 ha, isolated reefs often with distinct halo or reef features covering >10% of the area.
            Enumerated_Domain_Value_Definition_Source: FWC
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Not classified
            Enumerated_Domain_Value_Definition: Areas where habitat has not been classified.
            Enumerated_Domain_Value_Definition_Source: FWC
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Pavement
            Enumerated_Domain_Value_Definition: Contiguous to patchy pavement, lacking spur and groove channel formations.
            Enumerated_Domain_Value_Definition_Source: FWC
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Pavement with sand channels
            Enumerated_Domain_Value_Definition: Alternating linear sand and pavement formations, perpendicular to reef crest.
            Enumerated_Domain_Value_Definition_Source: FWC
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Pavement with seagrass
            Enumerated_Domain_Value_Definition: Contiguous to patchy pavement, lacking spur and groove channel formations with seagrass.
            Enumerated_Domain_Value_Definition_Source: FWC
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Reef rubble
            Enumerated_Domain_Value_Definition: Unconsolidated, dead, unstable coral rubble.
            Enumerated_Domain_Value_Definition_Source: FWC
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Reef rubble with seagrass
            Enumerated_Domain_Value_Definition: Unconsolidated, dead, unstable coral rubble with seagrass.
            Enumerated_Domain_Value_Definition_Source: FWC
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Ridge
            Enumerated_Domain_Value_Definition: Linear, shore-parallel, low-relief features, potentially ancient shoreline deposits.
            Enumerated_Domain_Value_Definition_Source: FWC
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Scattered rock or coral in unconsolidated sediment
            Enumerated_Domain_Value_Definition: Mostly sand, reef features covering <10% of the area.
            Enumerated_Domain_Value_Definition_Source: FWC
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Seagrass continuous
            Enumerated_Domain_Value_Definition: Continuous seagrass beds.
            Enumerated_Domain_Value_Definition_Source: FWC
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Seagrass discontinuous
            Enumerated_Domain_Value_Definition: Discontinuous seagrass beds.
            Enumerated_Domain_Value_Definition_Source: FWC
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Spur and groove
            Enumerated_Domain_Value_Definition: Alternating linear sand and coral formations, perpendicular to reef crest.
            Enumerated_Domain_Value_Definition_Source: FWC
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Tidal flats
            Enumerated_Domain_Value_Definition: Tidal flats
            Enumerated_Domain_Value_Definition_Source: FWC
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Unconsolidated Sediment
            Enumerated_Domain_Value_Definition: Unconsolidated sediment
            Enumerated_Domain_Value_Definition_Source: FWC
      Attribute:
        Attribute_Label: Mean projected erosion 25 years from 2002 in the Upper Florida Keys (m/25 years)
        Attribute_Definition: The mean projected erosion 25 years from 2002, in meters, derived from the Upper Florida Keys elevation change study.
        Attribute_Definition_Source: USGS
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: -0.363
            Range_Domain_Maximum: -0.1311
            Attribute_Units_of_Measure: meters
      Attribute:
        Attribute_Label: Max elevation in the 25 year Florida Reef Tract seafloor projection DEM (m)
        Attribute_Definition: Maximum projected seafloor elevation 25 years from 2001, in meters.
        Attribute_Definition_Source: USGS
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: -2.58062
            Range_Domain_Maximum: 1.8569
            Attribute_Units_of_Measure: meters
      Attribute:
        Attribute_Label: Min elevation in the 25 year Florida Reef Tract seafloor projection DEM (m)
        Attribute_Definition: Minimum projected seafloor elevation 25 years from 2001, in meters.
        Attribute_Definition_Source: USGS
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: -58.7836
            Range_Domain_Maximum: -1.5097
            Attribute_Units_of_Measure: meters
      Attribute:
        Attribute_Label: Mean elevation in the 25 year Florida Reef Tract seafloor projection DEM (m)
        Attribute_Definition: Mean projected seafloor elevation 25 years from 2001, in meters.
        Attribute_Definition_Source: USGS
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: -23.954251
            Range_Domain_Maximum: -0.3222
            Attribute_Units_of_Measure: meters
      Attribute:
        Attribute_Label: SD (m)
        Attribute_Definition: Standard deviation, in meters
        Attribute_Definition_Source: USGS
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 0.622065
            Range_Domain_Maximum: 9.946021
            Attribute_Units_of_Measure: meters
  Distribution_Information:
    Distributor:
      Contact_Information:
        Contact_Person_Primary:
          Contact_Person: Kimberly K. Yates
          Contact_Organization: Southeast Region: ST. PETE COASTAL & MARINE SCIENCE CENTER
        Contact_Position: Research Oceanographer
        Contact_Address:
          Address_Type: mailing and physical
          Address: 600 4Th Street South
          City: St. Petersburg
          State_or_Province: FL
          Postal_Code: 33701
          Country: United States
        Contact_Voice_Telephone: 727-502-8059
        Contact_Electronic_Mail_Address: kyates@usgs.gov
    Distribution_Liability: Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The USGS shall not be held liable for improper or incorrect use of the data described or contained herein. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
    Standard_Order_Process:
      Digital_Form:
        Digital_Transfer_Information:
          Format_Name: SHP, CSV, TIFF
          Format_Version_Number: ArcGIS 10.6, RFC 4180
          Format_Specification: Esri Polygon Shapefile, comma-separated values, tagged image file format
        Digital_Transfer_Option:
          Online_Option:
            Computer_Contact_Information:
              Network_Address:
                Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-P9YCVIZK/data/25_Year_FloridaReefTract_Seafloor_Projection_DEM_MeanErosion.zip
                Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-P9YCVIZK/data/FloridaReefTract_Habitat_OriginalClip.zip
                Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-P9YCVIZK/data/FloridaReefTract_ElevationSurface_OriginalClip.zip
                Network_Resource_Name: https://coastal.er.usgs.gov/data-release/doi-P9YCVIZK/data/25_Year_FloridaReefTract_Seafloor_Projection_MeanErosion.zip
      Fees: None
  Metadata_Reference_Information:
    Metadata_Date: 20190801
    Metadata_Contact:
      Contact_Information:
        Contact_Person_Primary:
          Contact_Person: Kimberly K. Yates
          Contact_Organization: Southeast Region: ST. PETE COASTAL & MARINE SCIENCE CENTER
        Contact_Position: Research Oceanographer
        Contact_Address:
          Address_Type: mailing and physical
          Address: 600 4Th Street South
          City: St. Petersburg
          State_or_Province: FL
          Postal_Code: 33701
          Country: United States
        Contact_Voice_Telephone: 727-502-8059
        Contact_Electronic_Mail_Address: kyates@usgs.gov
    Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
    Metadata_Standard_Version: FGDC-STD-001-1998
