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St. Petersburg Coastal and Marine Science Center

Data Release

Coastal Bathymetry Data Collected in 2016 nearshore from West Ship Island to Horn Island, Gulf Islands National Seashore, Mississippi

By Nancy T. DeWitt,1 Chelsea A. Stalk,2 Jake J. Fredericks,1 James G. Flocks,1 Kyle W. Kelso,1 Andrew S. Farmer,2 Thomas M. Tuten,2 and Noreen A. Buster1

1U.S. Geological Survey
2Cherokee Nation Technologies

Summary

The U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC), in cooperation with the US Army Corps of Engineers (USACE) conducted bathymetric surveys of the nearshore waters surrounding Ship and Horn Islands, Gulf Islands National Seashore, Mississippi (GUIS). Camille Cut separates Ship Island into East Ship Island and West Ship Island. The objective of this study was to establish base-level elevation conditions around West Ship Island, East Ship Island, Horn Island and their associated active littoral system prior to restoration activities. These activities include the closure of Camille Cut and the placement of sediment in the littoral zone of West Ship Island. This survey will be used to verify sediment migration patterns by monitoring elevation change over time. The dataset produced by this survey will also be used to measure against historic bathymetric datasets to further understand island elevation over time.

This data release provides 667-line kilometers (km) of processed single-beam bathymetry (SBB) data and 773-line km of processed Interferometric Bathymetry (IFB) collected by the USGS SPCMSC in July 2016 (field activity number [FAN] 2016-347-FA). The IFB were acquired on board the Research Vessel (R/V) Sallenger (subFAN, 16BIM04), and the SBB was acquired on board the R/V Jabba Jaw (subFAN, 16BIM05) and the R/V Mako (subFAN, 16BIM06). The IFB and SBB point data are provided in three datums: 1) the International Terrestrial Reference Frame of 2000 (ITRF00), ellipsoid height (-49.70 meters [m] to -28.87 m); 2) the North American Datum of 1983 (NAD83) CORS96 realization and the North American Vertical Datum 1988 (NAVD88) with respect to the GEOID12B model (-0.07 m to –20.69 m); and 3) NAD83 (CORS96) and Mean Lower Low Water (MLLW) (-0.04 m to -20.60 m). A comprehensive 50-meter Digital Elevation Model (DEM) created from the IFB and SBB point data is provided in NAD83 NAVD88 GEOID12B. Additional files include trackline shapefiles, respective digital and handwritten field logs, and formal Federal Geographic Data Committee (FGDC) metadata. For further information regarding data collection and processing please refer to the metadata.

Data

File Name and Description Metadata (XML format) Metadata (text format) Download File
Ship_Horn_Island_2016_IFB_SBB_NAD83_NAVD88_GEOID12B_50_DEM.zip
Bathymetry DEM, 50-m cell size, in NAD83 and NAVD88 with respect to the GEOID12B model.
Ship_Horn_Island_2016_IFB_SBB_DEM_metadata.xml Ship_Horn_Island_2016_IFB_SBB_DEM_metadata.txt Ship_Horn_Island_2016_IFB_SBB_NAD83_NAVD88_GEOID12B_50_DEM.zip
(.39 MB)
Ship_Horn_Island_2016_IFB_ITRF00_5m_xyz.zip
Interferometric bathymetry soundings (xyz) in ITRF00 and ellipsoid height.
Ship_Horn_Island_2016_IFB_xyz_metadata.xml Ship_Horn_Island_2016_IFB_xyz_metadata.txt Ship_Horn_Island_2016_IFB_ITRF00_5m_xyz.zip
(7 MB)
Ship_Horn_Island_2016_IFB_ITRF00_tracklines.zip
Interferometric bathymetry trackline shapefile in ITRF00.
Same as above Same as above Ship_Horn_Island_2016_IFB_ITRF00_tracklines.zip
(31 MB)
Ship_Horn_Island_2016_IFB_NAD83_NAVD88_GEOID12B_5m_xyz.zip
Interferometric bathymetry soundings (xyz) in NAD83 and NAVD88 (orthometric height) with respect to the GEOID12B model.
Same as above Same as above Ship_Horn_Island_2016_IFB_NAD83_NAVD88_GEOID12B_5m_xyz.zip
(18 MB)
Ship_Horn_Island_2016_IFB_NAD83_MLLW_5m_xyz.zip
Interferometric bathymetry soundings (xyz) in NAD83 and MLLW.
Same as above Same as above Ship_Horn_Island_2016_IFB_NAD83_MLLW_5m_xyz.zip
(15 MB)
Ship_Horn_Island_2016_IFB_NAD83_tracklines.zip
Interferometric bathymetry trackline shapefile in NAD83.
Same as above Same as above Ship_Horn_Island_2016_IFB_NAD83_tracklines.zip
(32 MB)
Ship_Horn_Island_2016_SBB_ITRF00_xyz.zip
Single-beam soundings (xyz) in ITRF00 and ellipsoid height.
Ship_Horn_Island_2016_SBB xyz_metadata.xml Ship_Horn_Island_2016_SBB_xyz_metadata.txt Ship_Horn_Island_2016_SBB_ITRF00_xyz.zip
(28 MB)
Ship_Horn_Island_2016_SBB_ITRF00_tracklines.zip
Single-beam trackline shapefile in ITRF00.
Same as above Same as above Ship_Horn_Island_2016_SBB_ITRF00_tracklines.zip
(29 MB)
Ship_Horn_Island_2016_SBB_NAD83_NAVD88_GEOID12B_xyz.zip
Single-beam soundings in (xyz) in NAD83 and NAVD88 (orthometric height) with respect to the GEOID12B model.
Same as above Same as above Ship_Horn_Island_2016_SBB_NAD83_NAVD88_GEOID12B_xyz.zip
(49 MB)
Ship_Horn_Island_2016_SBB_NAD83_MLLW_xyz.zip
Single-beam soundings (xyz) in NAD83 and MLLW.
Same as above Same as above Ship_Horn_Island_2016_SBB_NAD83_MLLW_xyz.zip
(49 MB)
Ship_Horn_Island_2016_SBB_NAD83_tracklines.zip
Single-beam bathymetry trackline shapefile in NAD83.
Same as above Same as above Ship_Horn_Island_2016_SBB_NAD83_tracklines.zip
(29 MB)
Supplemental Information
2016-347-FA_FACS.zip
Field Activity Collections System (FACS) for USGS FAN 2016-347-FA.  Includes overview and crew logs.
Not applicable Not applicable 2016-347-FA_FACS.zip
(.02 MB)
16BIM04_FACS_Operations.zip
FACS for USGS subFAN 16BIM04.  Includes survey equipment, vessel offsets, and handwritten operation notes.
Not applicable Not applicable 16BIM04_FACS_Operations.zip
(.12 MB)
16BIM05_FACS_Operations.zip
FACS for USGS subFAN 16BIM05.  Includes survey equipment, vessel offsets, and handwritten operation notes.
Not applicable Not applicable 16BIM05_FACS_Operations.zip
(7 MB)
16BIM06_FACS_Operations.zip 
FACS for USGS subFAN 16BIM06.  Includes survey equipment, vessel offsets, and handwritten operation notes.
Not applicable Not applicable 16BIM06_FACS_Operations.zip
(11 MB)

Map showing the 2016 interferometric swath and single-beam bathymetry tracklines (red) nearshore Ship and Horn Islands, Gulf Islands National Seashore, Mississippi. Base map is USGS 1:100,000-scale Digital Line Graph (DLG) data.
Map showing the 2016 interferometric swath and single-beam bathymetry tracklines (red) nearshore Ship and Horn Islands, Gulf Islands National Seashore, Mississippi. Base map is USGS 1:100,000-scale Digital Line Graph (DLG) data.

Suggested Citation

DeWitt, N.T., Stalk, C.A., Fredericks, J.J., Flocks, J.G., Kelso, K.W., Farmer, A.S., Tuten, T.M., and Buster, N.A., 2017, Coastal bathymetry data collected in 2016 nearshore from West Ship Island to Horn Island, Gulf Islands National Seashore, Mississippi: U.S. Geological Survey data release, https://doi.org/10.5066/F7B8571Q.

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