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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2017-686-FA

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AKA: none

Other ID: none

Status: Completed

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

Funding Program(s): Other (Other)

Principal Investigator(s): Jonathan Warrick

Affiliate Investigator(s):

Information Specialist(s): Ray Sliter

Data Type(s): Electro-Magnetic: Magnetics, Environmental Data: CTD, Location-Elevation: Navigation, Sampling: Geology, Seismics: Sub Bottom Profiler, Sonar: Multibeam, Sonar: Sound Velocity

Scientific Purpose/Goals: Geophysical investigations of shallow sediment cover on the shelf in support of sand resource quantification

Vehicle(s): Dodge Caravan - G41-2395R, F350 G43-2783H, MarFac; Ford F350 pickup/stake truck; 6 pass; G82-0317H

Start Port/Location: Oceanside, CA

End Port/Location: Oceanside, CA

Start Date: 2017-10-23

End Date: 2017-10-31

Equipment Used: Van Veen, 512 chirp, Magnetometer, POS MV, Vibracore, YoNav, Swath, CTD - FSI, 512 chirp-source, Reson 7111, Sound Velocity - SVP-1

Information to be Derived: Sand distribution and thickness on shelf; grain size

Summary of Activity and Data Gathered: chirp, magLog, POS, seismic, Swath and YoNav added to FAD 7/27/2018 grainsize data on FAD 11/30/2017

Staff: James Conrad, Jackson Currie, Timothy Elfers, Stephen Hartwell, Gerry Hatcher, Thomas Lorenson, Daniel Powers, Ray Sliter, Jonathan Warrick, Jennifer White

Affiliate Staff:

Notes: Funding OFA via BOEM IAA M16PG00030

Location:

Shelf NW of Oceanside, CA

Boundaries
North: 33.29839499 South: 33.21620588 West: -117.53036499 East: -117.40898132

Platform(s):

photo of Parke Snavely
Parke Snavely

Publications

Sliter, R.W., Conrad, J.E., Lorenson, T.D., Papesh, A.G., Watt, J.T., and Warrick, J.A., 2021, Geophysical and sampling data collected offshore Oceanside, southern California during field activity 2017-686-FA from 2017-10-23 to 2017-10-31: U.S. Geological Survey data release, https://doi.org/10.5066/P9UELSBU.

Portals/Viewers

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Van Veen --- Biology
Geology
Sediment grain size data from samples collected offshore Oceanside, southern California (This section of the data release contains grain-size analysis of twenty-six seafloor surface grab samples that were collected aboard the R/V Snavely in 2017 on U.S. Geological Survey cruise 2017-686-FA offshore Oceanside, southern California. The samples were collected at strategic locations along the same transects as seismic-reflection lines oriented to assess sand and gravel resources in Federal and State waters for potential use in future beach nourishment projects along stretches of the coast where critical erosion hotspots have been identified. Samples were collected at 23 locations using a Van Veen sediment sampler along 4 shore-perpendicular transects spaced 5 to 9 km apart, aligned with previously collected seismic profile lines, at depths ranging from about 20 to 80 m. One sample on the outer shelf (BSS-06) was collected to evaluate an area of suspected sand occurrence. Two duplicate samples were collected at one location (BSS-08) in order to evaluate local sample variability.)
512 chirp --- Sub Bottom Profiler
High-resolution chirp seismic-reflection data (This section of the data release contains approximately 369 line-kilometers of processed, high-resolution chirp seismic-reflection profiles that were collected aboard the R/V Snavely in 2017 on U.S. Geological Survey cruise 2017-686-FA offshore Oceanside, southern California. The along-shore and across-shore chirp profiles are oriented to assess sand and gravel resources in Federal and State waters for potential use in future beach nourishment projects along stretches of the coast where critical erosion hotspots have been identified. The chirp profiles were acquired using an Edgetech 512 Chirp sub-bottom profiling system.)
Magnetometer --- Magnetics
Marine magnetic data (This part of the data release contains marine magnetic data that were collected aboard the R/V Snavely in 2017 on U.S. Geological Survey cruise 2017-686-FA offshore Oceanside, southern California. The magnetic field data were collected to characterize the surface and subsurface properties of the study area, including unconsolidated sediment thickness and subsurface sediment horizons.)
POS MV --- Navigation
Vibracore --- Geology
YoNav --- Navigation
Swath --- Multibeam
CTD - FSI --- CTD
Mooring (physical oceanography)
512 chirp-source --- Sub Bottom Profiler
Reson 7111 --- Multibeam
Sound Velocity - SVP-1 --- Sound Velocity

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