Data Release
Seafloor Elevation Change from the 1930s to 2016 Along the Florida Reef Tract, USA
By Kimberly K. Yates,1 Stephanie R. Arsenault,2 Zachery W. Fehr,2 and Kelly A. Murphy3
1U.S. Geological Survey, St. Petersburg, Florida
2Cherokee Nation Technologies, St. Petersburg, Florida
3Student Contractor contracted to the U.S. Geological Survey
Summary
The U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted research to quantify bathymetric changes along the Florida Reef Tract (FRT) from Miami to Key West within a 982.4 square-kilometer area. USGS staff calculated changes in seafloor elevation from the 1930’s to 2016 using digitized historical hydrographic surveys (H-sheets) acquired by the U.S. Coast and Geodetic Survey (USC&GS) in the 1930’s and light detection and ranging (lidar)-derived digital elevation models (DEMs) acquired by the National Oceanic and Atmospheric Administration (NOAA) in 2016 and 2017. Most of the elevation data from the 2016/2017 time period were collected during 2016, so as an abbreviated naming convention, we refer to this time frame as 2016. An elevation change analysis between the 1930’s and 2016 data was performed to quantify and map impacts to seafloor elevation and to determine elevation and volume change statistics for 14 habitat types found within the study area along the FRT. Data were collected under Florida Keys National Marine Sanctuary permit FKNMS-2016-068.
Data
| File Name and Description | Metadata (XML format) | Metadata (text format) | Download File |
|---|---|---|---|
| FRT_MergedLidar.zip Merged 2016 lidar digital elevation model (DEM) used to produce this dataset (.tif) |
1930s_to_2016_ SeafloorElevationChange_ Metadata.xml |
1930s_to_2016_ SeafloorElevationChange_ Metadata.txt |
FRT_MergedLidar.zip (1.83 GB) |
| FRT_HabitatClip.zip Original habitat map, clipped to study area, used to produce this data set (.shp) |
Same as above | Same as above | FRT_HabitatClip.zip (25.5 MB) |
| FRT_IntersectPoints.zip Elevation change points, clipped to study area, used to produce this data set (.shp) |
Same as above | Same as above | FRT_IntersectPoints.zip (4.4 MB) |
| FRT_Elevation_and_Volume_Statistics.zip Spreadsheets containing elevation and volume statistics by habitat type for the FRT (.csv) |
Same as above | Same as above | FRT_Elevation_and_Volume_Statistics.zip (23 KB) |
| 2016_Lidar_RemovedAreas.zip Areas removed from the 2016 lidar DEMs (.shp) |
Same as above | Same as above | 2016_Lidar_RemovedAreas.zip (2.2 MB) |
| Supplemental information | |||
| Supplemental_Map.zip Summary map for the FRT seafloor elevation change from the 1930’s to 2016 (.jpg) |
Not applicable | Not applicable | Supplemental_Map.zip (527 KB) |
Figure 1. Area used for seafloor elevation change analysis, covering the extent of the Florida Reef Tract.
Suggested Citation
Yates, K.K., Arsenault, S.R., Fehr Z.W., and Murphy, K.A., 2021, Seafloor elevation change from the 1930s to 2016 along the Florida Reef Tract, USA: U.S. Geological Survey data release, https://doi.org/10.5066/P9NXNX61.