Projected Seafloor Elevation Change in the Upper Florida Keys, Florida: 25, 50, 75, and 100 years from 2002

Metadata also available as - [Outline] - [Parseable text] - [XML]

Frequently anticipated questions:

What does this data set describe?

Title:
Projected Seafloor Elevation Change in the Upper Florida Keys, Florida: 25, 50, 75, and 100 years from 2002
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 measuring regional-scale changes in seafloor elevation in the Upper Florida Keys, Florida, including both coral-dominated habitats and adjacent, non-coral-dominated habitats. USGS staff used historical bathymetric data from the 1930’s and light detection and ranging (lidar)-derived data acquired in 2002 (Brock and others, 2006, 2007) to calculate changes in seafloor elevation (Yates and others, 2017). Using these changes in seafloor elevation, further analyses were conducted that calculated annual erosion rates and utilized those results to project seafloor elevation changes 25, 50, 75, and 100 years from 2002.
Supplemental_Information:
Elevation measurements 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.
  1. How might this data set be cited?
    Yates, Kimberly, Zawada, Dave, and Arsenault, Stephanie, 20181219, Projected Seafloor Elevation Change in the Upper Florida Keys, Florida: 25, 50, 75, and 100 years from 2002: U.S. Geological Survey Data Release doi:10.5066/P9CI9LNH, U.S Geological Survey, St. Petersburg, FL.

    Online Links:

    This is part of the following larger work.

    Yates, Kimberly K., Zawada, David G., Smiley, Nathan A., and Tiling-Range, Ginger, 20170420, Divergence of seafloor elevation and sea level rise in coral reef ecosystems: U.S. Geological Survey, St. Petersburg, FL.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -80.46492
    East_Bounding_Coordinate: -80.109824
    North_Bounding_Coordinate: 25.476443
    South_Bounding_Coordinate: 24.967409
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 2018
    Currentness_Reference:
    publication date
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: Tabular digital data
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Point data set.
    2. What coordinate system is used to represent geographic features?
      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.0198052195. Longitudes are given to the nearest 0.02175115587. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is North American Datum of 1983 (1986).
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257222.
      Vertical_Coordinate_System_Definition:
      Altitude_System_Definition:
      Altitude_Datum_Name: North American Vertical Datum of 1988 (NAVD88) GEOID03
      Altitude_Resolution: 0.2
      Altitude_Distance_Units: meters
      Altitude_Encoding_Method:
      Explicit elevation coordinate included with horizontal coordinates
  7. How does the data set describe geographic features?
    25_year_projection.csv
    This file contains data, provided in a comma separated values (CSV) format, that were used to compute projected seafloor elevations values from 2002-2027. (Source: USGS)
    Longitude (Geographic NAD83)
    Longitude geographic coordinate, in NAD83 (1986) (Source: USGS)
    Range of values
    Minimum:-80.464920
    Maximum:-80.109824
    Units:decimal degrees
    Latitude (Geographic NAD83)
    Latitude geographic coordinate, in NAD83 (1986) (Source: USGS)
    Range of values
    Minimum:24.967409
    Maximum:25.476443
    Units:decimal degrees
    Easting (UTM Zone 17, NAD83)
    X-coordinate/Universal Transverse Mercator (UTM) easting, in meters (UTM Zone 17N, NAD83) (Source: USGS)
    Range of values
    Minimum:554001.232
    Maximum:589481.967
    Units:meters
    Northing (UTM Zone 17, NAD83)
    Y-coordinate/UTM northing, in meters (UTM Zone 17N, NAD83) (Source: USGS)
    Range of values
    Minimum:2761453.463
    Maximum:2817998.950
    Units:meters
    Original lidar elevation (NAVD88 GEOID03)
    The 2002 lidar elevation, in NAVD88 GEOID03 (Source: USGS)
    Range of values
    Minimum:-21.54471397
    Maximum:-0.97216493
    Units:meters
    Lidar date of collection
    Year the lidar data were collected (Source: USGS)
    Range of values
    Minimum:2002
    Maximum:2002
    Units:year
    Applied annual erosion rate
    The amount of annual erosion applied to the elevation surface (Source: USGS)
    Range of values
    Minimum:-0.12320428
    Maximum:0.09505913
    Units:meters per year
    Change in elevation
    The change in elevation calculated by multiplying the applied annual erosion rate by 25 years (Source: USGS)
    Range of values
    Minimum:-3.08010698
    Maximum:2.37647819
    Units:meters
    Projected elevation at 25 years from 2002 surface
    Elevation values for the projected surface (Source: Producer defined)
    Range of values
    Minimum:-22.01453528
    Maximum:-0.08079324
    Units:meters
    50_year_projection.csv
    This file contains data, provided in a comma separated values (CSV) format, that were used to compute projected seafloor elevations values 2002-2052. (Source: USGS)
    Longitude (Geographic NAD83)
    Longitude geographic coordinate, in NAD83 (1986) (Source: USGS)
    Range of values
    Minimum:80.464920
    Maximum:80.109824
    Units:decimal degrees
    Latitude (Geographic NAD83)
    Latitude geographic coordinate, in NAD83 (1986) (Source: USGS)
    Range of values
    Minimum:-24.967409
    Maximum:-25.476443
    Units:decimal degrees
    Easting (UTM Zone 17, NAD83)
    X-coordinate/Universal Transverse Mercator (UTM) easting, in meters (UTM Zone 17N, NAD83) (Source: USGS)
    Range of values
    Minimum:-554001.232
    Maximum:-589481.967
    Units:meters
    Northing (UTM Zone 17, NAD83)
    Y-coordinate/UTM northing, in meters (UTM Zone 17N, NAD83) (Source: USGS)
    Range of values
    Minimum:-2761453.463
    Maximum:-2817998.950
    Units:meters
    Original lidar elevation (NAVD88 GEOID03)
    The 2002 lidar elevation, in NAVD88 GEOID03 (Source: USGS)
    Range of values
    Minimum:-21.54471397
    Maximum:-0.97216493
    Units:meters
    Lidar date of collection
    Year the lidar data were collected (Source: USGS)
    Range of values
    Minimum:2002
    Maximum:2002
    Units:year
    Applied annual erosion rate
    The amount of annual erosion applied to the elevation surface (Source: USGS)
    Range of values
    Minimum:-0.12320428
    Maximum:0.09505913
    Units:meters per year
    Change in elevation
    The change in elevation calculated by multiplying the applied annual erosion rate by 50 years (Source: USGS)
    Range of values
    Minimum:-6.160
    Maximum:4.753
    Units:meters
    Projected elevation at 50 years from 2002 surface
    Elevation values for the projected surface (Source: Producer defined)
    Range of values
    Minimum:-22.484357
    Maximum:1.121677
    Units:meters
    75_year_projection.csv
    This file contains data, provided in a comma separated values (CSV) format, that were used to compute projected seafloor elevations values from 2002-2077. (Source: USGS)
    Longitude (Geographic NAD83)
    Longitude geographic coordinate, in NAD83 (1986) (Source: USGS)
    Range of values
    Minimum:-80.464920
    Maximum:-80.109824
    Units:decimal degrees
    Latitude (Geographic NAD83)
    Latitude geographic coordinate, in NAD83 (1986) (Source: USGS)
    Range of values
    Minimum:24.983402
    Maximum:25.476443
    Units:decimal degrees
    Easting (UTM Zone 17, NAD83)
    X-coordinate/Universal Transverse Mercator (UTM) easting, in meters (Source: USGS)
    Range of values
    Minimum:554001.232
    Maximum:589481.967
    Units:meters
    Northing (UTM Zone 17, NAD83)
    Y-coordinate/UTM northing, in meters (UTM Zone 17N, NAD83) (Source: USGS)
    Range of values
    Minimum:2761453.463
    Maximum:2817998.950
    Units:meters
    Original lidar elevation (NAVD88 GEOID03)
    The 2002 lidar elevation, in NAVD88 GEOID03 (Source: USGS)
    Range of values
    Minimum:-21.54471397
    Maximum:-0.97216493
    Units:meters
    Lidar date of collection
    Year the lidar data were collected (Source: USGS)
    Range of values
    Minimum:2002
    Maximum:2002
    Units:year
    Applied annual erosion rate
    The amount of annual erosion applied to the elevation surface (Source: USGS)
    Range of values
    Minimum:-0.12320428
    Maximum:0.09505913
    Units:meters per year
    Change in elevation
    The change in elevation calculated by multiplying the applied annual erosion rate by 75 years (Source: USGS)
    Range of values
    Minimum:-9.240321
    Maximum:7.129435
    Units:meters
    Projected elevation at 75 years from 2002 surface
    Elevation values for the projected surface (Source: Producer defined)
    Range of values
    Minimum:-22.954178
    Maximum:2.759300
    Units:meters
    100_year_projection.csv
    This file contains data, provided in a comma separated values (CSV) format, that were used to compute projected seafloor elevations values from 2002-2102. (Source: USGS)
    Longitude (Geographic NAD83)
    Longitude geographic coordinate, in NAD83 (1986) (Source: USGS)
    Range of values
    Minimum:-80.464920
    Maximum:-80.109824
    Units:decimal degrees
    Latitude (Geographic NAD83)
    Latitude geographic coordinate, in NAD83 (1986) (Source: USGS)
    Range of values
    Minimum:24.967409
    Maximum:25.476443
    Units:decimal degrees
    Easting (UTM Zone 17, NAD83)
    X-coordinate/Universal Transverse Mercator (UTM) easting, in meters (UTM Zone 17N, NAD83) (Source: USGS)
    Range of values
    Minimum:554001.232
    Maximum:589481.967
    Units:meters
    Northing (UTM Zone 17, NAD83)
    Y-coordinate/UTM northing, in meters (UTM Zone 17N, NAD83) (Source: USGS)
    Range of values
    Minimum:2761453.463
    Maximum:2817998.950
    Units:meters
    Original lidar elevation (NAVD88 GEOID03)
    The 2002 lidar elevation, in NAVD88 GEOID03 (Source: USGS)
    Range of values
    Minimum:-21.54471397
    Maximum:-0.97216493
    Units:meters
    Lidar date of collection
    Year the lidar data were collected (Source: USGS)
    Range of values
    Minimum:2002
    Maximum:2002
    Units:year
    Applied annual erosion rate
    The amount of annual erosion applied to the elevation surface (Source: USGS)
    Range of values
    Minimum:-0.12320428
    Maximum:0.09505913
    Units:meters per year
    Change in elevation
    The change in elevation calculated by multiplying the applied annual erosion rate by 100 years (Source: USGS)
    Range of values
    Minimum:-12.320400
    Maximum:9.505910
    Units:meters
    Projected elevation at 100 years from 2002 surface
    Elevation values for the projected surface (Source: Producer defined)
    Range of values
    Minimum:-24.835915
    Maximum:4.396923
    Units:meters

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Kimberly Yates
    • Dave Zawada
    • Stephanie Arsenault
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    Kimberly K Yates
    Southeast Region: ST. PETE COASTAL & MARINE SC
    Research Oceanographer
    600 4Th Street South
    St. Petersburg, FL
    United States

    727-502-8059 (voice)
    kyates@usgs.gov

Why was the data set created?

These data were used to determine future seafloor elevation changes in the Upper Florida Keys Reef Tract.

How was the data set created?

  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
    Date: 2018 (process 1 of 2)
    1) Calculate applied annual erosion rate by subtracting the historical 1930s elevation from the 2002 lidar elevation, then divide by the time period 2) Calculate change in elevation by multiplying the applied annual erosion rate by 25, 50, 75 or 100 3) Calculate projected elevation change from the 2002 surface by adding the change in elevation to the original 2002 lidar elevation. All calculations were performed with Microsoft Excel 2016. For additional information about methods and detailed data processing steps, please refer to Yates and others (2017). Person who carried out this activity:
    Kimberly K Yates
    Southeast Region: ST. PETE COASTAL & MARINE SC
    Research Oceanographer
    600 4Th Street South
    St. Petersburg, FL
    United States

    727-502-8059 (voice)
    kyates@usgs.gov
    Date: 13-Oct-2020 (process 2 of 2)
    Added keywords section with USGS persistent identifier as theme keyword. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
  3. What similar or related data should the user be aware of?
    Brock, J.C., Wright, C.W., Patterson, M., Nayegandhi, A., Patterson, J., Harris, M.S., and Mosher, L., 2006, EAARL submarine topography—Biscayne National Park: U.S. Geological Survey Open-File Report 2006-1118, U.S. Geological Survey, U.S. Geological Survey.

    Online Links:

    Brock, J.C., Wright, C.W, Nayegandhi, A., Patterson, M., Travers, L.J., and Wilson, I., 2007, EAARL submarine topography – Northern Florida Keys Reef Tract: U.S. Geological Survey Open-File Report 2007-1432, U.S. Geological Survey, U.S. Geological Survey.

    Online Links:

    Nayegandhi, A., Wright, C.W., Brock, J.C., Nagle, D., and Bonisteel, J.M., 2009, Experimental Advanced Airborne Research Lidar (EAARL) Data Processing Manual: U.S. Geological Survey, U.S. Geological Survey.

    Online Links:

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

  1. How well have the observations been checked?
    The expected accuracy of the measured variables are as follows: attitude within 0.07 degree, 3-centimeter (cm) nominal ranging accuracy, and vertical elevation accuracy of +/-20 cm for the submerged surface. Quality checks are built into the data-processing software. For additional information on lidar processing, please see Nayegandhi and others (2009).
  2. How accurate are the geographic locations?
    Raw elevation measurements have been determined to be within 1-meter in horizontal accuracy.
  3. How accurate are the heights or depths?
    Raw elevation measurements have been determined to be within +/-20 cm in vertical accuracy.
  4. Where are the gaps in the data? What is missing?
    Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details.
  5. How consistent are the relationships among the observations, including topology?
    Data cover area specified for this project without known issues.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: none
Use_Constraints:
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.
  1. Who distributes the data set? (Distributor 1 of 1)
    Kimberly K Yates
    Southeast Region: ST. PETE COASTAL & MARINE SC
    Research Oceanographer
    600 4Th Street South
    St. Petersburg, FL
    United States

    727-502-8059 (voice)
    kyates@usgs.gov
  2. What's the catalog number I need to order this data set?
  3. What legal disclaimers am I supposed to read?
    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
  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 13-Oct-2020
Metadata author:
Kimberly K Yates
Southeast Region: ST. PETE COASTAL & MARINE SC
Research Oceanographer
600 4Th Street South
St. Petersburg, FL
United States

727-502-8059 (voice)
kyates@usgs.gov
Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)
This page is <https://cmgds.marine.usgs.gov/catalog/spcmsc/seafloor_projection_metadata.faq.html>
Generated by mp version 2.9.50 on Tue Sep 21 18:18:56 2021