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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2022-328-FA

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Other ID: 22BIM06; 22BIM07; 22BIM08; 22BIM09; 22BIM10

Status: Completed

Organization(s): USGS, St. Petersburg Coastal and Marine Science Center

Funding Program(s): Breton Island Post Construction Monitoring (GX.24.MN00.F9231.00)

Principal Investigator(s): James Flocks

Affiliate Investigator(s): USGS Wetlands Aquatic Research Center

Information Specialist(s): Chelsea Stalk, Nancy DeWitt, Julie Bernier

Data Type(s): Seismics: Sub Bottom Profiler, Sonar: Multibeam, Sampling: Geology, Sonar: Sound Velocity, Sonar: Single Beam, Location-Elevation: Navigation, Location-Elevation: Benchmarks

Scientific Purpose/Goals: Map seafloor for coastal change

Vehicle(s): Ford F-350 Dually - Silver (GSA), Ford F-350 Dually White (GSA), White Dodge Pickup - White, Ford F-250 Stone Grey

Start Port/Location: Biloxi, MS

End Port/Location: Biloxi, Ms

Start Date: 2022-07-31

End Date: 2022-08-07

Equipment Used: Chirp 424, Multibeam Bathymetry System, SBG Ellipse A Motion Sensor, ODOM-Echotrac CV-100, Castaway-CTD, Push Corer, Collapsible Tripod, Applanix POS-MV DGPS/IMU, SP90 GNSS Receiver, SP80 GNSS Receiver, Valeport SVP, Garmin GPS, Choke Ring Antenna

Information to be Derived: Bathymetry, island elevation, sediment sampling, sub-bottom profiles.

Summary of Activity and Data Gathered: Successfully acquired geophysical and sediment sampling data. Processed (46) sub-bottom profile lines.

Staff: Maxwell Reynolds, Erin Lyons, Andrew Farmer, Natasha Nieckoski, Julie Bernier, Benjamin Galbraith, Chelsea Stalk, Nancy DeWitt, Billy Reynolds, James Flocks

Affiliate Staff:
Sarai Piazza

Notes: 22BIM06: Sallenger = Multibeam and sub-bottom
22BIM07: Twin Vee = Single Beam
22BIM08: WVR1 = Single Beam
22BIM09: WVR2 = Single Beam
22BIM10: Sand Augers = Sediment sampling

Entries for this field activity are updated from Field Activity 2014-314-FA.


Breton Island, Louisiana, Gulf of Mexico

North: 29.57913024 South: 29.36320932 West: -89.2886 East: -89.03729248


photo of Personal Water Craft (White WVR1 - Shark)
Personal Water Craft (White WVR1 - Shark)
photo of Sallenger
photo of Twin Vee (Jabba Jaw)
Twin Vee (Jabba Jaw)
photo of Personal Water Craft (Blue WVR2 - Chum)
Personal Water Craft (Blue WVR2 - Chum)


Forde, A.S., Flocks, J.G., and Farmer, A.S., 2023, Archive of Chirp Subbottom Profile Data Collected in 2022 From Breton Island, Louisiana: U.S. Geological Survey data release,

Lyons, E.O., DeWitt, N.T., Flocks, J.G., Reynolds, B.J., Farmer, A.S., Bernier, J.C., and others, 2024, Coastal Single-beam Bathymetry Data Collected in 2022 From Breton Island, Louisiana: U.S. Geological Survey data release,


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Chirp 424 --- Sub Bottom Profiler
2022-328-FA_segy (Digital chirp subbottom trace data)
2022-328-FA_seisimag (Processed subbottom profile images )
2022-328-FA_gis (Subbottom profile data location map, geospatial files, and images)
Multibeam Bathymetry System --- Multibeam
SBG Ellipse A Motion Sensor --- Single Beam
ODOM-Echotrac CV-100 --- Single Beam
Breton_Island_2022_SBES_ WGS84_UTM16N_xyz (Single-beam bathymetry data points (xyz) in WGS84 (G1762) UTM16N ellipsoid)
Breton_Island_2022_SBES_ WGS84_UTM16N_tracklines (Single-beam bathymetry trackline shapefile in WGS84 (G1762) UTM16N (.shp) ellipsoid)
Breton_Island_2022_SBES_ NAD83_NAVD88_UTM16N_ GEOID18_xyz (Single-beam bathymetry data points (xyz) in NAD83 and NAVD88 (orthometric height) with respect to the GEOID18 model)
Castaway-CTD --- Sound Velocity
Push Corer --- Geology
Collapsible Tripod --- Benchmarks
Applanix POS-MV DGPS/IMU --- Navigation
SP90 GNSS Receiver --- Benchmarks
SP80 GNSS Receiver --- Benchmarks
Valeport SVP --- Sound Velocity
Garmin GPS --- Navigation
2022-328-FA_nav (Navigation data for the entire survey, 1000-shot-interval locations, and start of line locations)
Choke Ring Antenna --- Benchmarks

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