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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2017-003-FA

Other ID: none

Status: Completed

Organization(s): USGS, Woods Hole Coastal and Marine Science Center

Funding Program(s): Other (Other)

Principal Investigator(s): Jason Chaytor

Affiliate Investigator(s):

Information Specialist(s): Wayne Baldwin

Data Type(s): Location-Elevation: Navigation, Seismics: Boomer, Seismics: Multichannel, Seismics: Sparker, Seismics: Sub Bottom Profiler, Sonar: Multibeam, Sonar: Sound Velocity

Scientific Purpose/Goals: MRDF mapping proof of concept

Vehicle(s):

Start Port/Location: Gulfport, MS

End Port/Location: Gulfport, MS

Start Date: 2017-05-19

End Date: 2017-05-26

Equipment Used: Reson T20-P, Edgetech chirp subbottom profiler 512i, POS-MV, S-Boom seismic source, DGPS, Sparker , Sensor - MVP30 (Odim), GeoEel digital streamer

Information to be Derived: Bathymetry and shallow subsurface structure

Summary of Activity and Data Gathered: High resolution bathymetric, sea-floor backscatter, and seismic-reflection data were collected offshore of southeastern Louisiana aboard the research vessel Point Sur on May 19-26, 2017, in an effort to characterize mudflow hazards on the Mississippi River Delta front. Approximately 675 kilometers (km) of multibeam bathymetry and backscatter data, 420 km of towed chirp data, and 550 km of multichannel seismic data were collected.

Staff: Seth Ackerman, Wayne Baldwin, Emile Bergeron, Jason Chaytor, William Danforth, Eric Moore, Alexander Nichols, Charles Worley

Affiliate Staff:

Notes:

Location:

Gulf of Mexico

Boundaries
North: 29.384853 South: 28.755905 West: -89.572538 East: -88.843299

Platform(s):

photo of Point Sur
Point Sur

Publications

Baldwin, W.E., Ackerman, S.D., Worley, C.R., Danforth, W.W., and Chaytor, J.D, 2018, High-resolution geophysical data collected along the Mississippi River Delta front offshore of southeastern Louisiana, U.S. Geological Survey Field Activity 2017-003-FA: U.S. Geological Survey data release, https://doi.org/10.5066/F7X929K6.

Portals/Viewers

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Reson T20-PApproximately 675 km of raw Dual Reson T20-P multibeam bathymetry and backscatter data.Multibeam
Water column reflectivity
2017-003-FA_T20P_Bathy_overview (Multibeam echosounder, Reson T-20P bathymetry overview (10-m) (32-bit GeoTIFF, UTM Zone 16N, NAD 83, NAVD 88 Vertical Datum))
2017-003-FA_T20P_Bathy_deepsite (Multibeam echosounder, Reson T-20P deep site bathymetry (4-m) (32-bit GeoTIFF, UTM Zone 16N, NAD 83, NAVD 88 Vertical Datum))
2017-003-FA_T20P_Backscatter_deepsite (Multibeam echosounder, Reson T-20P deep site backscatter (4-m) (8-bit GeoTIFF, UTM Zone 16N, NAD 83))
2017-003-FA_T20P_Backscatter_mc20site (Multibeam echosounder, Reson T-20P MC20 site backscatter (2-m) (8-bit GeoTIFF, UTM Zone 16N, NAD 83))
2017-003-FA_T20P_Bathy_mc20site (Multibeam echosounder, Reson T-20P MC20 site bathymetry (2-m) (32-bit GeoTIFF, UTM Zone 16N, NAD 83, NAVD 88 Vertical Datum))
2017-003-FA_T20P_Backscatter_swpasssite (Multibeam echosounder, Reson T-20P Southwest Pass site backscatter (4-m)(8-bit GeoTIFF, UTM Zone 16N, NAD 83))
2017-003-FA_T20P_Bathy_swpasssite (Multibeam echosounder, Reson T-20P Southwest Pass site bathymetry (8-m) (32-bit GeoTIFF, UTM Zone 16N, NAD 83, NAVD 88 Vertical Datum))
2017-003-FA_T20P_Tracklines (Multibeam echosounder, Reson T-20P tracklines (Esri polyline shapefile, GCS WGS 84))
Edgetech chirp subbottom profiler 512iApproximately 420 km of raw Edgetech 512i chirp seismic-reflection data.Sub Bottom Profiler
2017-003-FA_512i_Images (Seismic reflection, EdgeTech SB-512i chirp profile images (PNG images))
2017-003-FA_512i_500sht (Seismic reflection, EdgeTech SB-512i chirp shot points (CSV text and Esri point shapefile, GCS WGS 84))
2017-003-FA_512i_Tracklines (Seismic reflection, EdgeTech SB-512i chirp tracklines(Esri polyline shapefile, GCS WGS 84))
POS-MVVessel navigation and attitude data for the dual Reson T20P multibeam data were acquired with an Applanix POS MV Wavemaster (model 220, V5).Navigation
S-Boom seismic sourceApplied Acoustics S-Boom was used as a source for multichannel seismic-reflection data acquisition.Boomer
DGPSNavigation for the chirp and multichannel seismic reflection data were acquired using DGPS.Navigation
Sparker SIG ELC 1050 and 1200 mini sparkers were used as sources for multichannel seismic-reflection data acquisition.Sparker
Sensor - MVP30 (Odim)Water column sound velocity profiles were acquired using an Odim MVP30 moving vessel profiler.Sound Velocity
2017-003-FA_MVPdata (Sound velocity profiles, Odim MVP 30 sound velocity profile data (PNG images, ASVP text, and Esri point shapefile, GCS WGS 84).)
GeoEel digital streamerApproximately 550 km of raw multichannel seismic reflection data shot using Applied Acoustics S-Boom or SIG mini sparker (ELC 1050 and 1200) sources powered by Applied Acoustics CSP-D (700 and 2400) power supplies, and recorded using a 150-m long 32-channel (50 m active section) solid-state Geometrics GeoEel streamer with 1.5625-m spaced groups connected to a Geometrics Streamer Power Supply Unit (SPSU).Boomer
Multichannel
Sparker
Air Gun / Water Gun
Bubble Gun
2017-003-FA_MCS_Images (Seismic reflection, Geometrics multi-channel streamer common midpoint brute stack profile images(PNG images))
2017-003-FA_MCS_100cmp (Seismic reflection, Geometrics multi-channel streamer common midpoint navigation (CSV text and Esri point shapefile, GCS WGS 84))
2017-003-FA_MCS_Tracklines (Seismic reflection, Geometrics multi-channel streamer tracklines (Esri polyline shapefile, GCS WGS 84) Dates)

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