Data Release
Seafloor Elevation and Volume Change Analyses from 2016 to 2019 Along the Florida Reef Tract, USA
By Zachery W. Fehr,1 David G. Zawada,2 and Kimberly K. Yates2
1 Cherokee Nation System Solutions
2 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 939.4 square-kilometer area. USGS staff calculated changes in seafloor elevation and volume from 2016 to 2019 using light detection and ranging (lidar)-derived digital elevation models (DEMs) acquired by the National Oceanic and Atmospheric Administration (NOAA) in 2016, 2017 and 2019. Most of the elevation data from the 2016/2017 time period was collected during 2016, and as an abbreviated naming convention, we refer to this time period as 2016. Elevation and volume change statistics were determined for 17 habitat types found within the study area along the FRT. This data release contains elevation-change point data, elevation-change triangulated irregular network (TIN) surface models, lidar digital elevation models (DEMs) and habitat polygons used in this analysis, and elevation and volume change statistics for the geographic extent of this work. The full geographic extent of this analysis was subdivided into 5 blocks as indicated in Figure 1. 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 |
|---|---|---|---|
| ElevationChangeShapefiles.zip Point and polygon shapefiles used for elevation change analyses (.shp) |
Seafloor_Elevation_Change_ Analysis_from_2016_to_2019_along_ the_Florida_Reef_Tract_USA.xml |
Seafloor_Elevation_Change_ Analysis_from_2016_to_2019_along_ the_Florida_Reef_Tract_USA.txt |
ElevationChangeShapefiles.zip (2.39 GB) |
| VolumeChangeShapefiles.zip Point and polygon shapefiles used for TIN creation and volume change analyses (.shp) |
Same as above | Same as above | VolumeChangeShapefiles.zip (2.41 GB) |
| 2016_2019_LidarFiles.zip Files used in the development of rasters for elevation and volume change analyses (.tif, .shp) |
Same as above | Same as above | 2016_2019_LidarFiles.zip (3.39 GB) |
| ElevationChangeFigures.zip Elevation change maps for each block as well as a block locator map (.jpg) |
Same as above | Same as above | ElevationChangeFigures.zip (3.13 MB) |
| HabitatClips.zip Habitat shapefiles used for elevation and volume change analyses (.shp) |
Same as above | Same as above | HabitatClips.zip (22.2 MB) |
| 2016_2019_ProcessedTINs.zip TINs used for volume change analyses (TIN) *Due to large file sizes, the TIN model in this data zip may not be accessible in all geoprocessing software. It was generated by and can be viewed using ArcGIS Pro version 2.1.3 or later. |
Same as above | Same as above | 2016_2019_ProcessedTINs.zip (5.17 GB) |
| SECAT_Analyses.zip Elevation and volume change statistics for 0.19 m and 0.31 m thresholds in individual and collective formats (.csv, .xlsx) |
Same as above | Same as above | SECAT_Analyses.zip (184 KB) |
Figure 1. Geographic locations of each block delineated for the 2016 to 2019 elevation change analysis.
Suggested Citation
Fehr, Z.W., Zawada, D.G., and Yates, K.K., 2021, Seafloor elevation and volume change analyses from 2016 to 2019 along the Florida Reef Tract, USA: U.S. Geological Survey data release, https://doi.org/10.5066/P9CHC95D.