Data Release
Single-Beam Bathymetry Data Collected in March 2021 from Grand Bay and Point Aux Chenes Bay, Mississippi/Alabama
By Chelsea A. Stalk,1 Hunter S. Wilcox,3 Davina L. Passeri,1 Christopher G. Smith,1 Kathryn E.L Smith,1 and Joseph F. Terrano2
1 U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL
2 Cherokee Nation System Solutions, contracted to U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center
3 Formerly Cherokee Nation System Solutions, contracted to U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center
Summary
Scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center in St. Petersburg, Florida (USGS – SPCSMC), conducted a single-beam bathymetry survey within Grand Bay and Point Aux Chenes Bay, Mississippi/Alabama, from March 3–6, 2021. Efforts were supported by the Estuarine and MaRsh Geology project (EMRG), and the data described will provide baseline bathymetric information for future research investigating wetland/marsh evolution, sediment transport, and recent and long-term geomorphic change. The data will also support modeling of future changes in response to restoration efforts and storm impacts. Final data files are released in WGS84 (G1762) ellipsoid height and NAD83 (2011), NAVD88 orthometric heights, utilizing GEOID12A. Geographic Information System (GIS) data products include: a 10 m cell-size interpolated bathymetry grid or Digital Elevation Model (DEM), trackline maps, xyz point data files and formal Federal Geographic Data Committee (FGDC) metadata. To improve The DEM result and better represent the shoreline extent of the bathymetry, shoreline data from Terrano and others (2021) was utilized to create a coverage polygon for the survey areas. Vertices were assigned a zero elevation and incorporated when generating the DEM. For further information regarding data collection and/or processing methods refer to the associated metadata and DeWitt and others (2017).
DeWitt, N.T., Stalk, C.A., Smith, C.G., Locker, S.D., Fredericks, J.J., McCloskey, T.A., and Wheaton, C.J., 2017, Single-beam bathymetry data collected in 2015 from Grand Bay, Alabama-Mississippi: U.S. Geological Survey Data Series 1070, https://doi.org/10.3133/ds1070.
Terrano, J.F., Smith, K.E.L., Pitchford, J.L., Archer, M., Brochard, M., 2021, Shorelines from high-resolution WorldView satellite imagery, real-time kinematic global positioning data, and aerial imagery for 2013 to 2020 for study sites within Grand Bay National Estuarine Research Reserve, Mississippi: U.S. Geological Survey data release, https://doi.org/10.5066/P9W8TNQM.
Data
| File Name and Description | Metadata (XML format) | Metadata (text format) | Download File |
|---|---|---|---|
| Grand_Bay_2021_SBES_xyz.zip Single-beam bathymetry xyz data in both WGS84 (G1762) ellipsoid and NAD83 NAVD88 GEOID12B (.txt) |
GrandBay_PointAuxChenes_ 2021_metadata.xml |
GrandBay_PointAuxChenes_ 2021_metadata.txt |
Grand_Bay_2021_SBES_xyz.zip (5.29 MB) |
| Point_Aux_Chenes_2021_ SBES_xyz.zip Single-beam bathymetry xyz data in both WGS84 (G1762) ellipsoid and NAD83 NAVD88 GEOID12B (.txt) |
Same as above | Same as above | Point_Aux_Chenes_2021_ SBES_xyz.zip (57.5 MB) |
| Grand_Bay_2021_ SBES_Tracklines.zip Single-beam bathymetry tracklines in WGS84 (G1762) (.shp) |
Same as above | Same as above | Grand_Bay_2021_ SBES_Tracklines.zip (1.38 MB) |
| Point_Aux_Chenes_2021_ SBES_Tracklines.zip Single-beam bathymetry tracklines in WGS84 (G1762) (.shp) |
Same as above | Same as above | Point_Aux_Chenes_2021_ SBES_Tracklines.zip (14.3 MB) |
| Grand_Bay_2021_ NAD83_NAVD88_G12A_DEM.zip Bathymetry DEM, 10-m cell size in NAD83 NAVD88 Geoid 12A and the accompanying boundary shapefile (.tif, shp) |
Same as above | Same as above | Grand_Bay_2021_ NAD83_NAVD88_G12A_DEM.zip (70.8 KB) |
| Point_Aux_Chenes_2021_ NAD83_NAVD88_G12A_DEM.zip Bathymetry DEM, 10-m cell size in NAD83 NAVD88 Geoid 12A and the accompanying boundary shapefile (.tif, shp) |
Same as above | Same as above | Point_Aux_Chenes_2021_ NAD83_NAVD88_G12A_DEM.zip (991 KB) |
| Grand_Bay_Point_Aux_Chenes_ 2021_ShorelinePoints.zip Shoreline points adapted from Terrano and Smith, 2021. (.shp) |
Same as above | Same as above | Grand_Bay_Point_Aux_Chenes_ 2021_ShorelinePoints.zip (2.59 MB) |
| Grand_Bay_Point_Aux_Chenes_ 2021_Extent.zip Polygon files representing extend of data coverage. (.shp) |
Same as above | Same as above | Grand_Bay_Point_Aux_Chenes_ 2021_Extent.zip (1.10 MB) |
Figure 1. Location map including the single-beam bathymetry tracklines surveyed during the March 2021 Grand Bay and Point Chenes field effort.
Suggested Citation
Stalk, C.S., Wilcox, H.S., Passeri, D.L., Smith, C.G., Smith, K.E.L., and Terrano, J.F., 2021, Single-beam bathymetry data collected in March 2021 from Grand Bay and Point Aux Chenes Bay, Mississippi/Alabama: U.S. Geological Survey data release, https://doi.org/10.5066/P93ZM9MK.