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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2019-332-FA

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Other ID: none

Status: Completed

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

Funding Program(s): Coastal Sediment Availability and Flux - CSAF (GX.24.MN00.M0Y60.00)

Principal Investigator(s): Jennifer Miselis

Affiliate Investigator(s):

Information Specialist(s): Andrew Farmer, Arnell Forde, Chelsea Stalk

Data Type(s): Seismics: Sub Bottom Profiler, Sonar: Multibeam, Sonar: Single Beam, Sonar: Sound Velocity

Scientific Purpose/Goals: Geophysical shoreface mapping offshore of Cedar Island, VA.


Start Port/Location: Wachapreague, VA

End Port/Location: Wachapreague, VA

Start Date: 2019-08-07

End Date: 2019-08-20

Equipment Used: Chirp 512i, Multibeam Bathymetry System, Castaway-CTD, ODOM-Echotrac CV-100

Information to be Derived: Seafloor depth, seafloor texture, Holocene stratigraphy.

Summary of Activity and Data Gathered: Collected 64 CHIRP/SBB lines (all planned lines completed) as well as 138 MBB lines; nearly full coverage, except in extreme nearshore waters.

Staff: Nancy DeWitt, Andrew Farmer, Chelsea Stalk, Lance Thornton

Affiliate Staff:

Notes: Assigned Processor: Chelsea Stalk
Completion deadline May 2020


Cedar Island, VA, United States, Atlantic Ocean

North: 37.69243582 South: 37.5780712 West: -75.64318389 East: -75.55571705


photo of Sallenger


Forde, A.S., Stalk, C.A., Miselis, J.L., 2020, Archive of chirp subbottom profile data collected in 2019 From Cedar Island, Virginia: U.S. Geological Survey data release,

Stalk, C.A., Farmer, A.S., Miselis, J.L., Fredericks, J.J., 2020, Coastal bathymetry and backscatter data collected in August 2019 from Cedar Island, Virginia: U.S. Geological Survey data release,


Documents associated with this activity

Title Survey Equipment Description
2019-332-FA_logs (document not focused on specific equipment) Field Activity Collection System (FACS) logs, acquisition geometry, and geophysical operations log

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Chirp 512i --- Sub Bottom Profiler
2019-332-FA_segy (Digital chirp subbottom trace data)
2019-332-FA_nav (Navigation data)
2019-332-FA_gis (Geospatial data)
2019-332-FA_seisimag (Processed subbottom profile images)
Multibeam Bathymetry System --- Multibeam (Processed elevation point data (xyz) as derived from a 1-meter grid provided in both WGS84 (G1762) ellipsoid height and NAD83 NAVD88 orthometric height using GEIOD12B ) (Processed acoustic intensity backscatter mosaic, derived from the 1-meter grid, provided as a 32-bit float GeoTIFF in WGS84 (G1762))
Castaway-CTD --- Sound Velocity
ODOM-Echotrac CV-100 --- Single Beam (Single-beam bathymetry tracklines in WGS84 (G1762)) (Single-beam bathymetry xyz data in both WGS84 (G1762) ellipsoid height and NAD83 NAVD88 orthometric height using GEOID12B)

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