Other ID: 18BIM01, 18BIM02
Status: Completed
Organization(s): USGS, St. Petersburg Coastal and Marine Science Center
Funding Program(s):
Principal Investigator(s): Jennifer Miselis
Affiliate Investigator(s):
Information Specialist(s): Nancy DeWitt, Joseph Fredericks, Billy Reynolds
Data Type(s): Location-Elevation: Benchmarks, Location-Elevation: Navigation, Location-Elevation: Profiles, Seismics: Sub Bottom Profiler, Sonar: Multibeam, Sonar: Single Beam, Sonar: Sound Velocity
Scientific Purpose/Goals: 1) Measure bathymetric change and borrow site deposition on the N. Chandeleurs island platform and 2) Single-beam bathymetry of the long term change lines.
Vehicle(s): Chevy Suburban Silver, Ford F-350 Dually White (GSA)
Start Port/Location: Biloxi, MS
End Port/Location: Biloxi, MS
Start Date: 2018-08-15
End Date: 2018-08-23
Equipment Used: Other, Chirp 424, ODOM-Echotrac CV-100, TSS DMS-05 Motion Sensor, Castaway-CTD, Valeport SWiFT SVP, Multibeam Bathymetry System, Collapsible Tripod, Other, Ashtech ProFlex 800 GNSS Receiver, Choke Ring Antenna, Applanix POS-MV DGPS/IMU, Global Positioning System (GPS)
Information to be Derived: Bathymetric elevations (both multibeam and single-beam), depositional stratigraphy, and bench mark elevation control
Summary of Activity and Data Gathered: Collected 36 seismic, 70 single-beam bathy and 112 multi-beam bathy lines.
Staff: Nancy DeWitt, Joseph Fredericks, Billy Reynolds, Hunter Wilcox
Affiliate Staff:
Notes: Subfans:
R/V Sallenger: 18BIM01
-chirp
-multibeam
R/V Jabba Jaw: 18BIM02
-single beam
Location:
Chandeleur Islands, LA, Gulf of America (Gulf of Mexico)
| Boundaries | |||
|---|---|---|---|
| North: 30.05356335 | South: 29.67091617 | West: -89.1376 | East: -88.51818848 |
Platform(s):
 Sallenger |  22-ft Twin Vee (R/V G. Hill) |
Forde, A.S., DeWitt, N.T., Fredericks, J.J., Miselis, J.L., 2019, Archive of chirp subbottom profile data collected in 2018 from the northern Chandeleur Islands, Louisiana: U.S. Geological Survey data release, https://doi.org/10.5066/P9U1WJXM.
Stalk, C.A., Miselis, J.L., Fredericks, J.J., DeWitt, N.T., Reynolds, B.J., 2020, Coastal bathymetry data collected in August 2018 from the Chandeleur Islands, Louisiana: U.S. Geological Survey data release, https://doi.org/10.5066/P9E6E79E.
| Survey Equipment | Survey Info | Data Type(s) | Data Collected |
|---|---|---|---|
| Other | --- | --- | --- |
| Chirp 424 | --- | Sub Bottom Profiler | 2018-350-FA_seisimag (Processed subbottom profile images) 2018-350-FA_segy (Unprocessed digital chirp subbottom trace data) |
| ODOM-Echotrac CV-100 | --- | Single Beam | Chandeleur_Islands_2018_SBB_xyz (Single-beam bathymetry xyz data in both WGS84 (G1762) ellipsoid height and NAD83 NAVD88 GEOID 09) |
| TSS DMS-05 Motion Sensor | --- | Interferometric Single Beam | |
| Castaway-CTD | --- | Sound Velocity | |
| Valeport SWiFT SVP | --- | Sound Velocity | |
| Multibeam Bathymetry System | two Teledyne Reson SeaBat T50-P | Multibeam | Chandeleur_Islands_2018_MBES_xyz (Processed elevation point data (xyz) as derived from a 1-meter grid provided in both WGS84 (G1762) ellipsoid height and NAD83 NAVD88 GEOID 09) |
| Collapsible Tripod | --- | Benchmarks Navigation Profiles Transects | |
| Other | --- | --- | --- |
| Ashtech ProFlex 800 GNSS Receiver | --- | Benchmarks Navigation | |
| Choke Ring Antenna | --- | Benchmarks Navigation | |
| Applanix POS-MV DGPS/IMU | --- | Navigation | 2018-350-FA_nav (Navigation data for chirp subbottom) 2018-350-FA_gis (GIS data for subbottom chirp) |
| Global Positioning System (GPS) | --- | Navigation | Chandeleur_Islands_2018_SBB_Tracklines (Single-beam bathymetry tracklines in WGS84 (G1762)) |
