Upper Florida Keys 2002-2016 Seafloor Elevation Stability Models, Maps, and Tables

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Kelly A. Murphy
Originator: Kimberly K. Yates
Publication_Date: 20210628
Title:
Upper Florida Keys 2002-2016 Seafloor Elevation Stability Models, Maps, and Tables
Geospatial_Data_Presentation_Form: vector, tabular and raster digital data
Larger_Work_Citation:
Citation_Information:
Originator: Kelly A. Murphy
Originator: Kimberly K. Yates
Publication_Date: 20210628
Title:
Upper Florida Keys 2002-2016 Seafloor Elevation Stability Models, Maps, and Tables
Geospatial_Data_Presentation_Form: Publication
Series_Information:
Series_Name: U.S. Geological Survey data release
Issue_Identification: doi:10.5066/P94NIALN
Publication_Information:
Publication_Place: St. Petersburg, FL
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/P94NIALN
Description:
Abstract:
The U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) conducted research to identify areas of seafloor elevation stability and instability based on elevation changes between the years of 2002 and 2016 in the Upper Florida Keys (UFK) from Triumph Reef to Pickles Reef within a 242.4 square-kilometer area. USGS SPCMSC staff used seafloor elevation-change data from Murphy and others (2021) derived from an elevation-change analysis between two elevation datasets acquired in 2001/2002 and 2016/2017 using the methods of Yates and others (2017). Most of the elevation data from these two time periods were collected during 2002 and 2016, so as an abbreviated naming convention, we refer to this study time period as 2002-2016. A seafloor stability threshold was determined for the 2002-2016 UFK elevation-change dataset based on the vertical uncertainty of the 2002 and 2016 digital elevation models (DEMs). Five stability categories (which include, Stable: 0.0 meters (m) to ±0.24 m or 0.0 m to ±0.49 m; Moderately stable: ±0.25 m to ±0.49 m; Moderately unstable: ±0.50 m to ±0.74 m; Mostly unstable: ±0.75 m to ±0.99 m; and Unstable: ±1.00 m to Max/Min elevation change) were created and used to define levels of stability and instability for each elevation-change value (60,585,610 data points at 2-m horizontal resolution) based on the amount of erosion and accretion during the 2002 to 2016 time period. Seafloor-stability point and triangulated irregular network (TIN) surface models were created at five different elevation-change data resolutions (1st order through 5th order) with each resolution becoming increasingly more detailed. The stability models were used to determine the level of seafloor stability at potential areas of interest for coral restoration and 13 habitat types found in the UFK. Stability surface (TIN) models were used for areas defined by specific XY geographic points, while stability point models were used for areas defined by bounding box coordinate locations. This data release includes ArcGIS Pro map packages containing the binned and color-coded stability point and surface (TIN) models, potential coral restoration locations, and habitat files; maps of each stability model; and data tables containing stability and elevation-change data for the potential coral restoration locations and habitat types. Data were collected under Florida Keys National Marine Sanctuary permit FKNMS-2016-068.
Purpose:
These data were used to identify areas of seafloor elevation stability and instability, from 2002 to 2016, in the Upper Florida Keys.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20010710
Ending_Date: 20170220
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -80.465007
East_Bounding_Coordinate: -80.109513
North_Bounding_Coordinate: 25.478116
South_Bounding_Coordinate: 24.963888
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:70996eb6-7d96-4963-b882-98ad5e7693cb
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: marine geology
Theme_Keyword: reef ecosystems
Theme_Keyword: coelenterates
Theme_Keyword: sea-floor characteristics
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: seafloor erosion
Theme_Keyword: submerged topography
Theme_Keyword: elevation change
Theme_Keyword: seafloor accretion
Theme_Keyword: altimetry
Theme_Keyword: seafloor stability
Theme:
Theme_Keyword_Thesaurus: Global Change Master Directory (GCMD) Science
Theme_Keyword: OCEAN > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH
Theme_Keyword: OCEAN > COASTAL PROCESSES > EROSION
Theme_Keyword: OCEAN > COASTAL PROCESSES > COASTAL ELEVATION
Theme_Keyword: OCEAN > COASTAL PROCESSES > CORAL REEFS
Theme:
Theme_Keyword_Thesaurus: GCMD Providers
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: 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: 2002-2016
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. Petersburg Coastal and 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: Florida
Postal_Code: 33701
Country: United States
Contact_Voice_Telephone: 727-502-8059
Contact_Electronic_Mail_Address: kyates@usgs.gov
Cross_Reference:
Citation_Information:
Originator: Murphy, Kelly A.
Originator: Yates, Kimberly K.
Originator: Zawada, David G.
Publication_Date: 20210121
Title:
Seafloor Elevation Change From 2002 to 2016 in the Upper Florida Keys
Series_Information:
Series_Name: U.S. Geological Survey data release
Issue_Identification: doi:10.5066/P9P42DUR
Publication_Information:
Publication_Place: St. Petersburg, FL
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/P9P42DUR
Cross_Reference:
Citation_Information:
Originator: Yates, Kimberly K.
Originator: Zawada, David G.
Originator: Smiley, Nathan A.
Originator: Tiling-Range, Ginger
Publication_Date: 20170420
Title:
Divergence of seafloor elevation and sea level rise in coral reef ecosystems
Publication_Information:
Publication_Place: Munich, Germany
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5194/bg-14-1739-2017
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Datasets were visually inspected by USGS staff in Esri ArcGIS Pro version 2.1.3 for identification of 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 Murphy and others (2021) carefully for additional details.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
For the 2016 lidar DEMs used to produce the point dataset, the data positions were obtained using post-processed kinematic global positioning system (KGPS) methods. The horizontal accuracy of the 2002 and 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 2016 lidar DEMs used to produce the point dataset, the data positions were obtained using post-processed KGPS methods. Data used to validate the lidar were collected with static GPS observational equipment and compared against the published data. The vertical accuracy of the 2002 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: Kelly A. Murphy, Kimberley K. Yates, and David G. Zawada
Publication_Date: 20210121
Title:
Seafloor Elevation Change From 2002 to 2016 in the Upper Florida Keys
Geospatial_Data_Presentation_Form: Shapefile
Publication_Information:
Publication_Place: St. Petersburg, FL
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/P9P42DUR
Type_of_Source_Media: Elevation-change data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20010710
Ending_Date: 20170220
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: 2002-2016 Upper Florida Keys elevation-change points
Source_Contribution:
The original elevation-change points containing the calculated elevation change from 2002 to 2016 in the Upper Florida Keys.
Process_Step:
Process_Description:
Step 1: The original 2002-2016 Upper Florida Keys (UFK) elevation-change points (2002_2016_UFK_SeafloorStability_Points shapefile) were processed and published by Murphy and others (2021). For more information on the elevation-change data processing steps, source elevation data, and elevation-change points, see Murphy and others (2021). Horizontal coordinates are referenced to the Universal Transverse Mercator (UTM) North American Horizontal Datum of 1983 (NAD83) National Spatial Reference System of 2007 (NSRS2007) National Readjustment and vertical coordinates are referenced to the North American Vertical Datum of 1988 (NAVD88), GEOID12B geoid model.
Process_Date: 2020
Process_Step:
Process_Description:
Step 2: An elevation-change surface model was created in Esri ArcGIS Desktop Advanced version 10.6 (ArcMap) using the calculated elevation-change (Diff_m) points from the 2002_2016_UFK_SeafloorStability_Points shapefile and methods of Yates and others (2017). Due to the memory limitation ArcMap encounters when attempting to edit large TINs, a Python script was developed to create and edit a TIN following the Yates and others (2017) TIN creation method. Using the Python script, a TIN was created using the “Create TIN (3D Analyst)” tool by specifying the 2002_2016_UFK_SeafloorStability_Points shapefile as the “Input Feature Class”, Diff_m as the “Height Field” and Mass_Points as the “Type”, creating the 2002_2016_UFK_SeafloorStability_TIN file. The 2002_2016_UFK_SeafloorStability_TIN file was delineated using the “Delineate TIN Data Area (3D Analyst)” tool by specifying the 2002_2016_UFK_SeafloorStability_TIN file as the “Input TIN”, a “Maximum Edge Length” of 2.828428 (hypotenuse of a triangle with 2-meter (m) legs) and the “Method” set to ALL. The delineated 2002_2016_UFK_SeafloorStability_TIN was then clipped to the extent of the 2002 and 2016 DEMs using the “Edit TIN (3D Analyst)” tool with the following parameters: “Input TIN”: 2002_2016_UFK_SeafloorStability_TIN file; “Input Features Class”: 2002-2016 geometric intersection footprint; “Height Field”: None; “Tag Field”: None; and “Type”: Hard clip. This step was required to remove unwanted triangles that spanned data gaps in the original DEMs used to generate the 2002_2016_UFK_SeafloorStability_Points shapefile. For information on how to generate a geometric intersection between the 2002 and 2016 DEMs, see Yates and others (2017) and Murphy and others (2021).
Process_Date: 2020
Process_Step:
Process_Description:
Step 3: The 2002_2016_UFK_SeafloorStability_TIN file was classified into five stability categories using a defined stability threshold to identify areas of stability and instability. The stability threshold is the total root mean square error (RMSE) calculated for the 2002-2016 UFK elevation-change points using the vertical uncertainty of the 2002 and 2016 DEMs. A total RMSE of 0.24 m was calculated and rounded up to create a conservative stability threshold of 0.25 m that was applied to the TIN. See Yates and others (2017) for methods on calculating the RMSE. Based on the specified stability threshold of 0.25 m, the following five stability categories were identified: Stable: 0.0 m to ±0.24 m or 0.0 m to ±0.49 m; Moderately stable: ±0.25 m to ±0.49 m; Moderately unstable: ±0.50 m to ±0.74 m; Mostly unstable: ±0.75 m to ±0.99 m; and Unstable: ±1.00 m to Max/Min elevation change. Category boundaries use the pattern of “lower bound < or = x < upper bound” to avoid inclusion of individual elevation-change values in multiple categories. The categories were assigned based on the absolute value of the elevation-change values. For example, values within ±0.24 m of change were classified as Stable.
Process_Date: 2020
Process_Step:
Process_Description:
Step 4: Due to the large file size of the final 2002_2016_UFK_SeafloorStability_TIN file, ArcMap couldn’t render or run geoprocessing tools on the TIN, and therefore, ArcGIS Pro version 2.1.3 was used for subsequent processing steps. The 2002_2016_UFK_SeafloorStability_TIN file was opened in ArcGIS Pro and the “Symbology” window was opened by double clicking the TIN in the “Table of Contents” and selecting “Symbology”. Within the “Symbology” tab, “Surface” was set to Elevation, and “Classes” was set to 10. The following “Class Breaks” were used to classify and bin the elevation-change values into ten classes: -0.994999 (class1); -0.744999 (class 2); -0.494999 (class 3); -0.244999 (class 4); 0 (class 5); 0.244999 (class 6); 0.494999 (class 7); 0.744999 (class 8); 0.994999 (class 9); and maximum positive elevation-change value (class 10). The “Class Breaks” were based on the 0.25 m stability threshold, with each class increasing in increments of 0.24 m up to ±1 m of change. Classes 4, 5 and 6 represent the stable elevation-change values with no change detected (Stable), classes 1 and 10 represent the unstable elevation-change values with change greater than ±1 m (Unstable), and the remaining classes represent the elevation-change values in between (Moderately stable through Mostly unstable).
Process_Date: 2020
Process_Step:
Process_Description:
Step 5: The color symbology of the classes listed in the “Class Breaks” were changed to represent each stability category. A color gradient of red, gray, and blue shades was applied to the binned TIN to distinguish the stability level of each elevation-change value and distinguish areas of erosion and accretion. Both positive and negative elevation-change values that fell within the Stable category were colored gray. However, red and blue shades were applied to elevation-change values that fell within categories Moderately stable through Unstable to distinguish areas of erosion and accretion. Blue shades were applied to elevation-change values with positive elevation change (accretion) and red shades were applied to elevation-change values with negative elevation change (erosion). Lighter shades indicate the smallest amount of change while darker shades indicate the largest amount of change.
Process_Date: 2020
Process_Step:
Process_Description:
Step 6: Additionally, the 2002-2016 UFK elevation-change points were classified into the five stability categories. The process was similar to the methods described in steps 3-5; however, the “Class Breaks” were defined differently because the method for binning points is different than delineating break points for a TIN in ArcGIS Pro. The 2002_2016_UFK_SeafloorStability_Points shapefile was opened in ArcGIS Pro and the “Symbology” window was opened by double clicking the TIN in the “Table of Contents” and selecting “Symbology”. Within the “Symbology” tab, “Symbology” was set to Graduated Colors, “Field” was set to the attribute containing the elevation-change values (Diff_m) and “Classes” was set to 10. The following “Class Breaks” were used to classify and bin the Diff_m values into ten classes: -0.995 (class 1); -0.745 (class 2); -0.495 (class 3); -0.245 (class 4); 0 (class 5); 0.244999 (class 6); 0.494999 (class 7); 0.744999 (class 8); 0.994999 (class 9); and max positive Diff_m value (class 10). The remaining steps to change the color symbology are the same as described in step 5.
Process_Date: 2020
Process_Step:
Process_Description:
Step 7: The above process steps were repeated four times using different stability categories to represent a total of five different resolutions of elevation-change stability maps. The same color scheme was used for each resolution map. The above stability categories and “Class Breaks” described in Steps 3-6 represent the highest resolution map, 5th order. The remaining four resolutions of maps (1st through 4th order) required different “Class Breaks” and stability category ranges. The specific parameters for each resolution map are described in steps 8 through 11.
Process_Date: 2020
Process_Step:
Process_Description:
Step 8: The 4th order resolution map was generated for the 2002_2016_UFK_SeafloorStability_TIN file using the following eight “Class Breaks”: -0.744999, -0.494999, -0.244999, 0, 0.244999, 0.494999, 0.744999, and max positive elevation-change value. The following eight “Class Breaks” were used for the 2002_2016_UFK_SeafloorStability_Points shapefile: -0.745, -0.495, -0.245, 0, 0.244999, 0.494999, 0.744999, and max Diff_m value. The four associated stability categories for both are as follows: Stable: 0.0 m to ±0.24 m, Moderately stable: ±0.25 m to ±0.49 m, Moderately unstable: ±0.50 m to ±0.74 m, Unstable: ±0.75 m to Max/Min elevation change. The 4th order resolution maps combine the Mostly unstable values into the Unstable category.
Process_Date: 2020
Process_Step:
Process_Description:
Step 9: The 3rd order resolution map was generated for the 2002_2016_UFK_SeafloorStability_TIN file using the following six “Class Breaks”: -0.494999, -0.244999, 0, 0.244999, 0.494999, and max positive elevation-change value. The following six “Class Breaks” were used for the 2002_2016_UFK_SeafloorStability_Points shapefile: -0.495, -0.245, 0, 0.244999, 0.494999, and max positive Diff_m value. The three associated stability categories for both are as follows: Stable: 0.0 m to ±0.24 m, Moderately stable: ±0.25 m to ±0.49 m, Unstable: ±0.50 m to Max/Min elevation change. The 3rd order resolution maps combine the Moderately unstable and Mostly unstable values into the Unstable category.
Process_Date: 2020
Process_Step:
Process_Description:
Step 10: The 2nd order resolution map was generated for the 2002_2016_UFK_SeafloorStability_TIN file using the following three “Class Breaks”: -0.494999, 0.494999, and max positive elevation-change value. The following three “Class Breaks” were used for the 2002_2016_UFK_SeafloorStability_Points shapefile: -0.495, 0.494999, and max positive Diff_m value. The two associated stability categories for both are as follows: Stable: 0.0 m to ±0.49 m and Unstable: ±0.50 m to Max/Min elevation change. The 2nd order resolution maps combine the Moderately stable values into the Stable category, and the Moderately unstable and Mostly unstable values into the Unstable category.
Process_Date: 2020
Process_Step:
Process_Description:
Step 11: The 1st order resolution map was generated using the same “Class Breaks” and stability category ranges as the 2nd order resolution map. However, both positive and negative values that fell within the Unstable category were colored dark red regardless of being negative or positive to depict only stable and unstable areas regardless of gain or loss in elevation.
Process_Date: 2020
Process_Step:
Process_Description:
Step 12: The USGS SPCMSC analyzed seafloor elevation change and stability throughout the Florida Reef Tract (FRT) at potential coral reef restoration locations provided by partnering stakeholders. Ten reef locations of interest throughout the FRT were identified by the National Oceanic and Atmospheric Administration (NOAA) Florida Keys National Marine Sanctuary, two reefs of which (Carysfort reef and Horseshoe reef) fall within the bounds of the 2002-2016 UFK data extent. Additionally, seafloor stability data were requested from Mote Marine Laboratory for 50 authorized coral outplant sites (Special Activity License: SAL-18-1724-SCRP) and five potential coral outplant sites along the FRT. Four of the five potential outplant sites fell within the bounds of the 2002-2016 UFK data extent.
Process_Date: 2020
Process_Step:
Process_Description:
Step 13: Boundaries for the coral reefs of interest were downloaded as a Keyhole Markup Language Zipped file (KMZ) from the NOAA Florida Keys National Marine Sanctuary webpage (https://floridakeys.noaa.gov/fknms_map/welcome.html; last accessed: 27 November 2019). Using ArcMap, the KMZ file was converted to a single merged polygon shapefile, creating the NOAA_CoralReef_LocationsOfInterest shapefile. The polygons encompassing the ‘Carysfort reef’ and ‘Horseshoe reef’ were included in this file. A point shapefile containing the four potential outplant sites (MotesPotential_OutplantSites shapefile) was created using the coordinate locations from Mote Marine Laboratory. Mote Marine Laboratory provided the USGS SPCMSC with the latitude, longitude, and site description of each outplant site. Horizontal coordinates are referenced to the UTM NAD83 (NSRS2007) National Readjustment and vertical coordinates are referenced to the NAVD88, GEOID12B geoid model.
Process_Date: 2020
Process_Step:
Process_Description:
Step 14: Elevation-change information was extracted from the 2002_2016_UFK_SeafloorStability_TIN file at the location of the MotesPotential_OutplantSites shapefile using the “Add Surface Information (3D Analyst)” tool in ArcGIS Pro by specifying the MotesPotential_OutplantSites shapefile as the “Input Features”, the 2002_2016_UFK_SeafloorStability_TIN file as the “Input Surface”, Z as the “Output Property”, LINEAR as the “Method”, and “Sampling Distance” and “Z Factor” left blank. A single elevation-change value was extracted from the TIN at the location of each point that fell within the bounds of the 2002_2016_UFK_SeafloorStability_TIN file.
Process_Date: 2020
Process_Step:
Process_Description:
Step 15: The average elevation change and standard deviation was calculated from the 2002_2016_UFK_SeafloorStability_Points shapefile at the location of the ‘Carysfort reef’ and ‘Horseshoe reef’ polygons using the “Statistics” tool in ArcGIS Pro. When calculating average elevation change and standard deviation for locations defined by bounding box coordinates, the elevation-change points were used.
Process_Date: 2020
Process_Step:
Process_Description:
Step 16: Using Microsoft Excel 2016, all statistics were entered into a table and color coded based on the defined stability colors for each map resolution. Additionally, average elevation changes and standard deviations calculated by the USGS SPCMSC for each habitat found within the 2002-2016 elevation-change points data extent were included in the table. No-data values are indicated by -99. For information on how to calculate elevation-change statistics by habitat type, see Yates and others (2017) and Murphy and others (2021).
Process_Date: 2020
Process_Step:
Process_Description:
Step 17: Map packages (.mpkx) containing a map document and the data it contains were created for each resolution map. Each map document contains the MotesPotential_OutplantSites shapefile, NOAA_CoralReef_LocationsOfInterest shapefile, habitat map, and the binned and color coded 2002_2016_UFK_SeafloorStability_Points shapefile and 2002_2016_UFK_SeafloorStability_TIN file. For users that have access to ArcGIS Pro, the map packages can be downloaded and opened to display the coral restoration locations, habitat types, and binned points and TIN for each resolution. The individual contents of the map packages are also provided in this data release, including layer files that store the symbology information for each resolution of the seafloor stability points and TIN. The layer files can be applied to the stability points or TIN in ArcGIS Pro using the “Apply Symbology From Layer (Data Management)” tool.
Process_Date: 2020
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Point
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:
Overview_Description:
Entity_and_Attribute_Overview:
The detailed attribute descriptions for the stability data tables and maps are provided in the included data dictionaries (StabilityCategories_DataDictionary.pdf, StabilityTables_DataDictionary.pdf, and HabitatTypes_DataDictionary.pdf). These metadata are not complete without these files.
Entity_and_Attribute_Detail_Citation:
The entity and attribute information were generated by the individual and/or agency identified as the originator of the dataset. Please review the rest of the metadata record for additional details and information.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Kimberly K. Yates
Contact_Organization:
Southeast Region: St. Petersburg Coastal and 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: JPEG, MPKX, SHP, LYRX, ADF, CSV, XLSX
Format_Version_Number: none, ArcGIS Pro 2.1.3, RFC 4180, Microsoft Excel 2016
Format_Specification:
Joint Photographic Experts Group, Esri map package, Esri point and polygon shapefiles, Esri layer files, Esri TIN, comma-separated values, Excel Microsoft Office Open XML Format Spreadsheet file.
Digital_Transfer_Option:
Fees: None
Technical_Prerequisites:
Users must have access to Esri ArcGIS Pro version 2.1.3 or later to open the map packages provided in this data release.
Metadata_Reference_Information:
Metadata_Date: 20210521
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Kimberly K. Yates
Contact_Organization:
Southeast Region: St. Petersburg Coastal and 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: Florida
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

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