Data Release
Coastal Multibeam Bathymetry and Backscatter Data Collected in May 2021 From Seven Mile Island, New Jersey
By Chelsea A. Stalk, Andrew S. Farmer, Emily A. Wei, and Jennifer L. Miselis
USGS, St. Petersburg, Florida
Summary
Scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center in St. Petersburg, Florida (USGS - SPCSMC), conducted a geophysical survey nearshore Seven Mile Island, New Jersey, during May 2021. During this study, multibeam bathymetry and acoustic backscatter data were collected aboard the R/V Sallenger. Efforts were supported by the National Fish and Wildlife Foundation (NFWF) Beach and Marsh Monitoring Project and the USGS Coastal Sediment Availability and Flux (CSAF) Project. Both projects aim to assess sediment availability and exchange in nearshore environments and incorporate shoreface morphology and geology into coastal-change assessments and predictions. For further information regarding data collection and/or processing methods refer to the associated metadata.
Data
| File Name and Description | Metadata (XML format) | Metadata (text format) | Download File |
|---|---|---|---|
| 7Mile_2021_MBES_xyz.zip Processed elevation point data (xyz) as derived from a 1-meter grid provided in both WGS84 (G1762) ellipsoid and NAD83 NAVD88 GEOID12B(.xyz) |
7Mile_2021_MBES_metadata.xml | 7Mile_2021_MBES_metadata.txt | 7Mile_2021_MBES_xyz.zip (268.6 MB) |
| 7Mile_2021_MBES_Backscatter.zip Processed acoustic intensity backscatter mosaic, derived from the 1-meter grid, provided as a 32-point GeoTIFF in WGS84 (G1762) ellipsoid (.tif) |
Same as above | Same as above | 7Mile_2021_MBES_Backscatter.zip (108.5 MB) |
Figure 1. Location map for the 2021 Seven Mile Island, New Jersey, survey which incorporates multibeam bathymetry (left) and associated backscatter (right). Multibeam bathymetry and backscatter data are represented by a 1-meter digital elevation model in WGS84 (G1762) ellipsoid height, intensity values are shown in decibels (dB). Background image obtained from 2019 National Agricultural Image Program (NAIP). These data should not be used for navigational purposes.
Suggested Citation
Stalk, C.A., Farmer, A.S., Wei, E.A., and Miselis, J.L., 2022, Coastal multibeam bathymetry and backscatter data collected in May 2021 from Seven Mile Island, New Jersey: U.S. Geological Survey data release, https://doi.org/10.5066/P9M2EQIR.