Seafloor Elevation Change From 2004 to 2016 at Looe Key, Florida Keys

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Kimberly K. Yates
Originator: David G. Zawada
Originator: Kelly A. Murphy
Originator: Stephanie R. Arsenault
Publication_Date: 20190821
Title:
Seafloor Elevation Change From 2004 to 2016 at Looe Key, Florida Keys
Geospatial_Data_Presentation_Form: Multimedia presentation
Series_Information:
Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/P9JTOOMB
Publication_Information:
Publication_Place: St. Petersburg, FL
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/P9JTOOMB
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 bathymetric changes at Looe Key near Big Pine Key, Florida (FL), within a 16.4 square-kilometer area between 2004 and 2016. USGS staff used light detection and ranging (lidar)-derived data acquired by the U.S. Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX) between December 1 and 31, 2004 (USACE-JALBTCX) and the National Oceanic and Atmospheric Administration (NOAA) between July 21 and November 21, 2016 (NOAA, 2017) to assess changes in seafloor elevation and structure that occurred during this time. An elevation change analysis between the 2004 USACE and 2016 NOAA lidar data was performed to quantify and map impacts to seafloor elevation and determine elevation and volume change statistics for ten habitat types found at Looe Key. Data were collected under Florida Keys National Marine Sanctuary permit FKNMS-2016-068.
Purpose:
These data were used to determine seafloor elevation and volume changes, from 2004 to 2016, at Looe Key, FL.
Supplemental_Information:
The 2004 lidar data were collected by the USACE JALBTCX using the Compact Hydrographic Airborne Rapid Total Survey (CHARTS) system. The 2016 lidar data were collected by the NOAA National Geodetic Survey (NGS) Remote Sensing Division using a Riegl VQ-820-G system. The lidar data are an ancillary product of NOAA's Coastal Mapping Program (CMP), created through a wider Integrated Ocean and Coastal Mapping initiative to increase support for multiple uses of the data.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20041201
Ending_Date: 20161121
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -81.440068
East_Bounding_Coordinate: -81.367746
North_Bounding_Coordinate: 24.574091
South_Bounding_Coordinate: 24.536433
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:5c441333-adb5-4507-8699-74f86fb799f9
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: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme_Keyword: elevation
Theme_Keyword: oceans
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
Place_Keyword: Looe Key National Marine Sanctuary
Place_Keyword: Florida Keys
Place_Keyword: Florida
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Florida Reef Tract
Place_Keyword: Florida Keys National Marine Sanctuary
Stratum:
Stratum_Keyword_Thesaurus: None
Stratum_Keyword: submerged
Stratum_Keyword: seafloor
Temporal:
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 2004-2016
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
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Datasets were visually compared by USGS staff in Esri ArcGIS Desktop Advanced version 10.6 for identification of anomalous elevations or data inconsistencies.
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:
For the 2004 and 2016 lidar, the data positions were obtained using post-processed kinematic global positioning system (KGPS) methods. The horizontal accuracy of the 2004 data is better than plus or minus 0.75 meter (m); Quantitative Value: 0.75 m. The horizontal accuracy of the 2016 data is better than plus or minus 1.0 m; Quantitative Value: 1.0 m.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
For the 2004 and 2016 lidar, the data positions were obtained using post-processed KGPS methods. Data used to test the lidar were collected with static GPS observational equipment and compared against the published data. The vertical accuracy of the 2004 data is better than plus or minus 0.20 m; Quantitative Value: 0.20 m. The vertical accuracy of the 2016 data is better than plus or minus 0.15 m; Quantitative Value: 0.15 m.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator:
National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), National Geodetic Survey (NGS), Remote Sensing Division
Publication_Date: 20170914
Title:
2016 NOAA NGS Topobathy Lidar DEM: Florida Keys Outer Reef Block 01
Geospatial_Data_Presentation_Form: DEM
Publication_Information:
Publication_Place: Charleston, SC
Publisher: National Oceanic and Atmospheric Administration
Online_Linkage: https://inport.nmfs.noaa.gov/inport/item/48373
Type_of_Source_Media: topobathy data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20160721
Ending_Date: 20161121
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: 2016 Looe Key lidar
Source_Contribution:
The original lidar data used to calculate elevation and volume change statistics for Looe Key from 2004 to 2016.
Source_Information:
Source_Citation:
Citation_Information:
Originator:
U.S. Army Corps of Engineers, Joint Airborne Lidar Bathymetry Technical Center of eXpertise
Publication_Date: Unpublished material
Title: Looe Key, Florida 2004 Lidar Coverage
Geospatial_Data_Presentation_Form: DEM
Publication_Information:
Publication_Place: Kiln, MS
Publisher: JALBTCX
Type_of_Source_Media: topobathy data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20041201
Ending_Date: 20041231
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: 2004 Looe Key lidar
Source_Contribution:
The original lidar data used to calculate elevation and volume change statistics for Looe Key from 2004 to 2016. For users interested in obtaining the raw lidar point cloud or rasterized topobathymetry data, please contact the U.S. Army Corps of Engineers directly at, JALBTCX@usace.army.mil.
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:
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.
Process_Step:
Process_Description:
Step 1:The original 2016 NOAA NGS Topography Lidar DEM: Florida Keys Outer Reef Block 01 tagged image file format (TIFF) DEM was downloaded from https://inport.nmfs.noaa.gov/inport/item/48373 using the "Customized Download" capability of NOAA’s DigitalCoast website. The data were downloaded with the following parameters: UTM Zone: Zone 17 Range 084W-078W; Horizontal Datum: NAD83; Horizontal Units: Meters; Vertical Datum: NAVD88; Vertical Units: Meters; File Format: Tiff 32-bit Float; Bin Method: TIN; Bin Size: 1.0; Bin Units: Meters; Data Classification: Bathymetric Lidar Points; Data Returns: Any Points; Ancillary Data: No Ancillary Data; and Geoid Name: GEOID12B. Using VDatum version 3.9, a publicly available software from NOAA (https://vdatum.noaa.gov/), the lidar TIFF was transformed from the North American Horizontal Datum of 1983 (NAD83) Universal Transverse Mercator (UTM) Zone 17 North to NAD83 National Spatial Reference System (NSRS2007) horizontal datum, the vertical datum and geoid model were kept the same.
Process_Date: 2019
Process_Step:
Process_Description:
Step 2: The original Looe Key, Florida 2004 Lidar Coverage TIFF DEM was acquired (via file downloads from a secure server) directly from the U.S. Army Corps of Engineers. Horizontal coordinates (latitude and longitude, in decimal degrees) were provided in NAD83 and vertical positions were referenced to the NAD83 ellipsoid, in meters. Using VDatum version 3.9, the lidar TIFF was transformed from the NAD83 to the NAD83 (NSRS2007) horizontal datum, while the GEOID03 model was used to transform from ellipsoid to NAVD88 GEOID12B orthometric heights.
Process_Date: 2019
Process_Step:
Process_Description:
Step 3: Using Esri ArcGIS Desktop Advanced version 10.6, footprints of the original 2004 and 2016 lidar TIFF's were created with the "Reclassify (Spatial Analyst)" tool in ArcToolbox. To create each raster file, all old data values were replaced with 1 and the 'No Data' value with 0 to create the raster files. Then, the "Raster to Polygon (Conversion)" tool was used to create a footprint of the original lidar data by converting the raster files to polygon shape (SHP) files.
Process_Date: 2019
Process_Step:
Process_Description:
Step 4: Due to false returns, additional areas were removed from the 2016 lidar. Polygons encompassing the regions of error were created using Global Mapper 18.2 with the "Digitizer" tool and the 'Create Area/Polygon Features'. The polygons were exported as a single SHP file, see 2016_Lidar_EdgeEffects_Removed_Areas SHP file.
Process_Date: 2019
Process_Step:
Process_Description:
Step 5: A polygon SHP file of the geometric intersection between the two lidar surveys was created with the "Intersect (Analysis)" tool by adding the two lidar footprint SHP files (Step 3) as 'Input features'. Additional areas were deleted from the Intersect_footprint SHP file because of lidar edge effects using the "Erase (Analysis)" tool by specifying the Intersect_footprint SHP file as the 'Input features' and the 2016_Lidar_EdgeEffects_Removed_Areas SHP file as the 'Erase Features'. Then, the two lidar TIFF's (Step 1, 2) were clipped to the extent of the Intersect_footprint SHP file using the "Clip (Data Management)" tool by specifying one of the lidar TIFF’s as the 'Input Raster', the Intersect_footprint SHP file as the 'Output Extent', and box checked for 'Use Input Features for Clipping Geometry', creating the 2004_LooeKey_Lidar_Clip TIFF and the 2016_LooeKey_Lidar_Clip TIFF.
Process_Date: 2019
Process_Step:
Process_Description:
Step 6: A 2-m grid was created using the "Create Fishnet (Data Management)" tool with the following parameters: Template extent: Intersect_footprint SHP file (Step 5); Cell size width: 2; Cell size height: 2; Number of Rows: left blank, Number of Columns: left blank; Geometry type: POLYLINE and box checked for 'Create Label Points'. The 2-m grid label points SHP file was clipped to the extent of the Intersect_footprint SHP file using the "Clip (Analysis)" tool by specifying the 2-m grid label points SHP file as the 'Input features' and the Intersect_footprint SHP file as the 'Clip features.' XY coordinates were added to the 2-m grid SHP file using the "Add XY Coordinates (Data Management)" tool, to create the 2m_grid point SHP file.
Process_Date: 2019
Process_Step:
Process_Description:
Step 7: Values from the 2004_LooeKey_Lidar_Clip TIFF (Step 5) and 2016_LooeKey_Lidar_Clip TIFF (Step 5) were extracted at the location of the 2m_grid points using the "Extract Values to Points (Spatial Analyst)" tool by specifying the 2m_grid point SHP file as the 'Input point features' and the 2004_Lidar_Clip TIFF as the 'Input', creating the Lidar_Extract_Points SHP file. This step was repeated with the Lidar_Extract_Points SHP file as the 'Input point features' and the 2016_LooeKey_Lidar_Clip TIFF as the 'Input', creating the LooeKey_IntersectPoints SHP file.
Process_Date: 2019
Process_Step:
Process_Description:
Step 8: The elevation difference (Diff_m) between the 2016 lidar (RASTERVALU) and the 2004 lidar data (RASTERVA_1) were calculated by adding a field to the attribute table of the LooeKey_IntersectPoints SHP file using the "Field Calculator" and the expression Diff_m = [RASTERVALU] – [RASTERVA_1]. An additional point was removed from the LooeKey_IntersectPoints SHP file because it had a Diff_m value of 26.9, which was an outlier compared to the surrounding points.
Process_Date: 2019
Process_Step:
Process_Description:
Step 9: The original Unified Florida Reef Tract Map version 2.0 SHP file was downloaded from http://ocean.floridamarine.org/IntegratedReefMap/UnifiedReefTract.htm. Using Esri ArcGIS, the original habitat SHP file was modified using the "Clip (Analysis)" tool to clip the habitat SHP file to the extent of the Intersect_footprint SHP file (Step 5) by specifying the habitat SHP file as the 'Input Features' and the Intersect_footprint SHP file as the 'Clip Features', creating the LooeKey_Habitat_Clip. Using the "Select by Attribute" tool, individual habitat SHP files were created from the LooeKey_Habitat_Clip SHP file using the "Select by Attribute" tool to select one ClassLv2 habitat and exporting as a separate SHP file.
Process_Date: 2019
Process_Step:
Process_Description:
Step 10: Elevation change statistics were determined by habitat type using the XYZ points from the LooeKey_IntersectPoints SHP file. The "Select Layer by Location (Data Management)" tool was used to extract points within or on the boundary of a specific habitat type by using the following parameters: Input Feature Layer: LooeKey_IntersectPoints; Relationship: INTERSECT; Selecting Features: Habitat SHP file; Search Distance: left blank; and Selection type: NEW_SELECTION. An ArcMap model was created to automate the process, because these steps had to be repeated for 10 habitat types. Elevation change statistics from Looe Key were compiled by habitat type into a comma separated values (CSV) file using Microsoft Excel 2016, see LooeKey_Elevation_Statistics.csv. After analysis, no data values in the table were defined as "-".
Process_Date: 2019
Process_Step:
Process_Description:
Step 11: An elevation change surface model was created using the "Create TIN (3D Analyst)" tool by specifying the LooeKey_IntersectPoints SHP file (Step 7) as the 'Input Feature Class', Diff_m as the 'Height Field' and Mass_Points as the 'Type', creating the Intersect_TIN file. Then, the Intersect_TIN file was delineated using the "Delineate TIN Data Area (3D Analyst)" tool by specifying the Intersect_TIN as the 'Input TIN', a 'Maximum Edge Length' of 2.828428 (hypotenuse of a 2-m grid) and the 'Method' set to ALL. The delineated Intersect_TIN was clipped to the extent of the Intersect_footprint SHP file (Step 5) using the "Edit TIN (3D Analyst)" tool with the following parameters: Input TIN: Intersect_TIN; Input Features Class: Intersect_footprint SHP file; Height Field: None, Tag Field: None; and Type: Hard clip.
Process_Date: 2019
Process_Step:
Process_Description:
Step 12: In addition to elevation-change statistics, volume-change statistics per habitat type were calculated using the final TIN (Step 11). Surface volume changes were calculated for four cases using the "Surface Volume (3D Analyst)" tool. To calculate the net erosion lower limit (case 1) the 'Reference Plane' was set to BELOW and the 'Plane Height' set to -0.212 m. For the net erosion upper limit (case 2) the 'Reference Plane' was set to BELOW and the 'Plane Height' set to 0 m. For the net accretion lower limit (case 3) the 'Reference Plane' was set to ABOVE and the 'Plane Height' was set to 0.212 m. For the net accretion upper limit (case 4) the 'Reference Plane' was set to ABOVE and the 'Plane Height' was set to 0 m. A 0.212 m threshold was determined by vertical error analysis using the uncertainty for modern lidar (0.15 m) to calculate the Root Mean Square Error (RMSE) of 0.212 m. Minimum net volume was calculated by summing results from cases 1 and 3. Maximum net volume was calculated by summing results from cases 2 and 4. Area normalized volume change lower limit was calculated by dividing the minimum net volume change for each habitat by the habitat's total area. The area normalized volume change upper limit was calculated by diving the maximum net volume for each habitat by the habitat's total area. An ArcMap model was created to automate the process, because these steps had to be repeated for 10 habitat types. Volume change statistics from Looe Key were compiled by habitat type in CSV format using Microsoft Excel 2016, see LooeKey_Volume_Statistics.csv.
Process_Date: 2019
Process_Step:
Process_Description:
Added keywords section with USGS persistent identifier as theme keyword.
Process_Date: 20201013
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Entity Point
Point_and_Vector_Object_Count: 4086712
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 17
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -81.0
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000.0
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.6096
Ordinate_Resolution: 0.6096
Planar_Distance_Units: METERS
Geodetic_Model:
Horizontal_Datum_Name:
North American Datum of 1983 National Spatial Reference System (2007)
Ellipsoid_Name: GRS_1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: North American Vertical Datum of 1988 (NAVD88) GEOID12B
Altitude_Resolution: 0.2
Altitude_Distance_Units: meters
Altitude_Encoding_Method:
Explicit elevation coordinate included with horizontal coordinates
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: LooeKey_Elevation_Statistics.csv
Entity_Type_Definition:
Looe Key elevation change statistics per habitat type from 2004 to 2016.
Entity_Type_Definition_Source: USGS
Attribute:
Attribute_Label: Habitat types in Looe Key study site
Attribute_Definition:
The habitat types found in the Looe Key study site. 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 Looe Key study site, includes 10 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: 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: 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: 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: Unconsolidated Sediment
Enumerated_Domain_Value_Definition: Unconsolidated sediment.
Enumerated_Domain_Value_Definition_Source: FWC
Attribute:
Attribute_Label: Total points (no.)
Attribute_Definition:
The total number of points within or on the boundary of each Looe Key habitat type.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2101
Range_Domain_Maximum: 4086712
Attribute_Units_of_Measure: number of points
Attribute:
Attribute_Label: Mean elevation change (m)
Attribute_Definition:
Mean elevation change per habitat type in the Looe Key study site from 2004 to 2016, in meters.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0679
Range_Domain_Maximum: 0.4955
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Mean elevation change SD (m)
Attribute_Definition: Standard deviation of the mean elevation change, in meters.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.1265
Range_Domain_Maximum: 0.282
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Accretion points (no.)
Attribute_Definition:
The total number of accretion points within or on the boundary of each Looe Key habitat type.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2101
Range_Domain_Maximum: 3940304
Attribute_Units_of_Measure: number of points
Attribute:
Attribute_Label: Max accretion (m)
Attribute_Definition:
Maximum accretion per habitat type in the Looe Key study site from 2004 to 2016, in meters
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.6297
Range_Domain_Maximum: 4.5873
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Min accretion (m)
Attribute_Definition:
Minimum accretion per habitat type in the Looe Key study site from 2004 to 2016, in meters
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0.08269
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Mean accretion (m)
Attribute_Definition:
Mean accretion per habitat type in the Looe Key study site from 2004 to 2016, in meters.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.1694
Range_Domain_Maximum: 0.5136
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Mean accretion SD (m)
Attribute_Definition: Standard deviation of the mean accretion, in meters.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.1123
Range_Domain_Maximum: 0.1966
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Erosion points (no.)
Attribute_Definition:
The total number of erosion points within or on the boundary of each Looe Key habitat type.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 146408
Attribute_Units_of_Measure: number of points
Attribute:
Attribute_Label: Max erosion (m)
Attribute_Definition:
Maximum erosion per habitat type in the Looe Key study site from 2004 to 2016, in meters.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -3.1488
Range_Domain_Maximum: -0.6344
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Min erosion (m)
Attribute_Definition:
Minimum erosion per habitat type in the Looe Key study site from 2004 to 2016, in meters.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -0.000115
Range_Domain_Maximum: -0.000001
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Mean erosion (m)
Attribute_Definition:
Mean erosion per habitat type in the Looe Key study site from 2004 to 2016, in meters.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -0.2867
Range_Domain_Maximum: -0.1003
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Mean erosion SD (m)
Attribute_Definition: Standard deviation of the mean erosion, in meters.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0938
Range_Domain_Maximum: 0.3978
Attribute_Units_of_Measure: meters
Detailed_Description:
Entity_Type:
Entity_Type_Label: LooeKey_Volume_Statistics.csv
Entity_Type_Definition:
Volume statistics by habitat type in Looe Key from 2004 to 2016.
Entity_Type_Definition_Source: USGS
Attribute:
Attribute_Label: Habitat types in Looe Key study site
Attribute_Definition:
The habitat types found in Looe Key. 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: FWC
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Total Study Site
Enumerated_Domain_Value_Definition: The total Looe Key study site, includes 10 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: 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: 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: 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 the reef crest.
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: Habitat Area (km^2)
Attribute_Definition: Habitat area, in kilometers squared.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0087
Range_Domain_Maximum: 16.3786
Attribute_Units_of_Measure: km^2
Attribute:
Attribute_Label: Net erosion lower limit (10^6 m^3)
Attribute_Definition:
Net erosion minimum volume per habitat, in millions of cubic meters.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0.021
Attribute_Units_of_Measure: 10^6 m^3
Attribute:
Attribute_Label: Net erosion upper limit (10^6 m^3)
Attribute_Definition:
Net erosion maximum volume per habitat, in millions of cubic meters.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0.0711
Attribute_Units_of_Measure: 10^6 m^3
Attribute:
Attribute_Label: Net accretion lower limit (10^6 m^3)
Attribute_Definition:
Net accretion minimum volume per habitat, in millions of cubic meters.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0002
Range_Domain_Maximum: 3.2865
Attribute_Units_of_Measure: 10^6 m^3
Attribute:
Attribute_Label: Net accretion upper limit (10^6 m^3)
Attribute_Definition:
Net accretion maximum value per habitat, in millions of cubic meters.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.002
Range_Domain_Maximum: 6.4769
Attribute_Units_of_Measure: 10^6 m^3
Attribute:
Attribute_Label: Net volume change lower limit (10^6 m^3 study area^-1)
Attribute_Definition:
Net volume change lower limit per habitat, in millions of cubic meters per study area.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0001
Range_Domain_Maximum: 3.2655
Attribute_Units_of_Measure: 10^6 m^3 study area^-1
Attribute:
Attribute_Label: Net volume change upper limit (10^6 m^3 study area^-1)
Attribute_Definition:
Net volume change upper limit per habitat, in millions of cubic meters per study area.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0013
Range_Domain_Maximum: 6.4058
Attribute_Units_of_Measure: 10^6 m^3 study area^-1
Attribute:
Attribute_Label: Area normalized volume change lower limit (10^6 m^3 km^-2)
Attribute_Definition:
Area normalized volume change lower limit per habitat, in millions of cubic meters per kilometer squared.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0051
Range_Domain_Maximum: 0.2963
Attribute_Units_of_Measure: 10^6 m^3 km^-2
Attribute:
Attribute_Label: Area normalized volume change upper limit (10^6 m^3 km^-2)
Attribute_Definition:
Area normalized volume change upper limit per habitat, in millions of cubic meters per kilometer squared.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.066
Range_Domain_Maximum: 0.4959
Attribute_Units_of_Measure: 10^6 m^3 km^-2
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 point and polygon shapefiles, comma-separated values, tagged image file format
Digital_Transfer_Option:
Fees: None
Metadata_Reference_Information:
Metadata_Date: 20201013
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

This page is <https://cmgds.marine.usgs.gov/catalog/spcmsc/LooeKey_2004_to_2016_metadata.html>
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