Data Release
Projected Seafloor Elevation Change and Relative Sea Level Rise Near St. Croix, U.S. Virgin Islands 25, 50, 75, and 100 Years from 2014
By Kimberly K. Yates1 and Zachery W. Fehr 2
1 U.S. Geological Survey
2 Cherokee Nation System Solutions
Summary
The U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted research to quantify bathymetric changes near Buck Island and St. Croix, U.S. Virgin Islands. Changes in seafloor elevation were calculated using historical bathymetric point data from the 1980s (see Yates and others, 2017a) and light detection and ranging (lidar)-derived data acquired in 2014 (NOAA, 2015) using methods outlined in Yates and others (2017b). An elevation change analysis between the 1980s and 2014 data was performed to quantify and map historical impacts to seafloor elevation and to determine elevation-change statistics for 12 habitat types found near St, Croix. Annual elevation-change rates were calculated for each elevation-change data point. Seafloor elevation-change near St. Croix was projected 25, 50, 75 and 100 years from 2014 using these historical annual rates of elevation change. Water depth was projected 25, 50, 75 and 100 years from 2014 using historical rates of annual elevation change plus 2014 local sea level rise data from the National Oceanic and Atmospheric Administration (NOAA).
Data
| File Name and Description | Metadata (XML format) | Metadata (text format) | Download File |
|---|---|---|---|
| STC_ProjectedElevationChangePoints_ 25yr_50yr_75yr_and_100yr_from_2014.zip Point shapefiles used for elevation-change analyses (.shp) |
STC_Projected_Elevation_ Change_25yr_50yr_75yr_and_100yr_ from_2014_metadata.xml |
STC_Projected_Elevation_ Change_25yr_50yr_75yr_and_100yr_ from_2014_metadata.txt |
STC_ProjectedElevationChangePoints_ 25yr_50yr_75yr_and_100yr_from_2014.zip (3.2 MB) |
| STC_HabitatShapefile.zip Habitat shapefiles used for elevation-change analyses (.shp) |
Same as above | Same as above | STC_HabitatShapefile.zip (249 KB) |
| STC_ProjectedSECAT.zip Contains elevation-change statistics per habitat type (.csv) |
Same as above | Same as above | STC_ProjectedSECAT.zip (212 KB) |
| STC_ProjectionMaps.zip Contains elevation-change (N_e_diff) and relative sea level rise (N_RSLR) maps (.jpg) |
Same as above | Same as above | STC_ProjectionMaps.zip (14 MB) |
Figure 1. Locations of historical soundings that fall within the extent of the 2014 lidar data near St. Croix and Buck Island, U.S. Virgin Islands.
Suggested Citation
Yates, K.K. and Fehr, Z.W., 2022, Projected seafloor elevation change and relative sea level rise near St. Croix, U.S. Virgin Islands 25, 50, 75, and 100 years from 2014: U.S. Geological Survey data release, https://doi.org/10.5066/P9ZPZXKF.