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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2018-361-FA

Other ID: none

Status: Completed

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

Funding Program(s): Florida Coastal Mapping (GX.21.MN00.EQ590.00)

Principal Investigator(s): Cheryl Hapke

Affiliate Investigator(s):

Information Specialist(s): Nancy DeWitt, Andrew Farmer, Joseph Fredericks

Data Type(s): Location-Elevation: Navigation, Seismics: Bubble Gun, Sonar: Multibeam

Scientific Purpose/Goals: Florida Mapping Project: TBD

Vehicle(s): Ford F-350 Dually - Silver (GSA)

Start Port/Location: Cedar Key, FL

End Port/Location: Cedar Key, FL

Start Date: 2018-11-26

End Date: 2018-12-05

Equipment Used: Multibeam Bathymetry System, Along Track Reef Imaging System (ATRIS) - Shallow, Applanix POS-MV DGPS/IMU, Ashtech ProFlex 800 GNSS Receiver, Choke Ring Antenna, Collapsible Tripod, Bubble Pulser, Bubble Pulser Hydrophone Streamer Cable

Information to be Derived: Processed XYZ mulitbeam bathymetry data points referenced to the ellipsoid and a water datum, digital elevation model, and subbottom profiles

Summary of Activity and Data Gathered: On leg 1 and leg 2 data was successfully collected: multibeam bathymetry (~164 lines), navigation data (163.3 MB base; 6.38 GB rover), and SVP casts (116 profiles). On leg 2, bubble gun was deployed and successfully recorded 13 lines.

Staff: Nancy DeWitt, Andrew Farmer

Affiliate Staff:

Notes: This FAN was completed in 2 Legs due to weather and an additional seismic survey was conducted on 05/30/19.

Leg 1 = 11/26/2018 to 12/1/2018
Leg 2 = 12/9/2018 to 12/14/2018


Cedar Key, Florida

North: 29.11706582 South: 28.950801 West: -83.17921032 East: -83.00715883


photo of Sallenger


DeWitt, N.T., Farmer, A.S., Flocks, J.G., Hapke, C.J., 2020, Multibeam bathymetry data collected in 2018 offshore of Cedar Key, Florida: U.S. Geological Survey data release,


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Multibeam Bathymetry System --- Multibeam (The 1-meter multibeam bathymetry point data in WGS84 [G1762] UTM Zone 17N and ellipsoid height (.xyz) )
Along Track Reef Imaging System (ATRIS) - Shallow --- Surveys (biological)
Applanix POS-MV DGPS/IMU --- Navigation
Ashtech ProFlex 800 GNSS Receiver --- Benchmarks
Choke Ring Antenna --- Benchmarks
Collapsible Tripod --- Benchmarks
Bubble Pulser --- Bubble Gun
Bubble Pulser Hydrophone Streamer Cable --- Bubble Gun

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