1. Coastal and Marine Hazards and Resources
  2. Geoscience Data System

Field Activity L490SC

Identifier L490SC
Alternate names L-4-90-SC
Description Chief Scientists: Bob Bohannon, Steve Eittreim. Geophysical data (24channel, airgun, 3dot5khz, 12khz, sonobuoy, gravity, magnetics, GPS, integratednavigation, RhoRho, airgunmonitor) of field activity L-4-90-SC in Southern California from 05/09/1990 to 05/25/1990
Location Southern California
Comments Staff information imported from InfoBank Al McClenaghan - Ship Captain Bette Lu Krause - Chief Mate Bill Lafleur - Chief Engineer Bill Robinson - Electrical Engineer Bob Bohannon - Chief Scientist Calvin Lee (U.S.C.) - Watchstander Chris Sorlien (U.C.S.B.) - Watchstander Corky Ozanne - Mechanical Technician Dave Hogg - Electronics Technician Hal Williams - Mechanical Technician Jean Riordan - Navigator Jon Childs - Geophysicist Kaye Kinoshita - Navigator Larry Busch (S.D.S.U.) - Navigator Mark Legg (S.D.S.U.) - Watchstander Pat Hart - Geophysicist Steve Eittreim - Chief Scientist
Platform
Samuel Phillips Lee
USNS S. P. Lee (T-AGS-31), Length 208 feet, Beam 39 feet, Draft 14 feet, Speed 12 knots
Itinerary
Start Santa Cruz, CA 1990-05-09
End Redwood City, CA 1990-05-25
Bounds
West -122.012
East -117.35716
North 36.97062
South 31.19093
Activity Geophysical

Personnel

Principal investigators Bohannon, BobEittreim, Steve
Crew members
Patrick E Hart
Scientist, Staff
Jonathan R Childs
Scientist, Staff
Hogg, Dave
Scientist, Staff
Lafleur, Bill
Scientist, Staff
Lu, Bette
Scientist, Staff
McClenaghan, Al
Scientist, Staff
Ozanne, Corky
Scientist, Staff
Riordan, Jean
Scientist, Staff
Williams, Hal
Scientist, Staff
Robinson, Bill
Scientist, Staff
Kinoshita, Kaye
Scientist, Staff
Affiliate staff Calvin Lee (U.S.C.) - Watchstander,Chris Sorlien (U.C.S.B.) - Watchstander,Larry Busch (S.D.S.U.) - Navigator,Mark Legg (S.D.S.U.) - Watchstander

Data types and categories

Data category: Seismics, Sonar, Electro-Magnetic, Location-Elevation
Data type: Multichannel, Air Gun / Water Gun, Sub Bottom Profiler, Single Beam, Sonobuoy, Gravity, Magnetics, Navigation

Equipment used

Equipment Usage description Data types Datasets
24channel Multichannel 11
airgun Air Gun / Water Gun 1
3.5khz Sub Bottom Profiler 2
12khz Single Beam 4
sonobuoy Sonobuoy 1
gravity Gravity 7
magnetics Magnetics 5
GPS Navigation 2
integratednavigation Navigation 7
RhoRho Navigation 2
airgunmonitor Air Gun / Water Gun 2

Datasets

Datasets produced in this activity

Dataset name Equipment Description Dataset contact
multichannel.airgun 24channel Bob Bohannon
Multichannel data (mig) 24channel Download SEG-Y files from National Archive of Marine Seismic Surveys (NAMSS) Bob Bohannon
Multichannel data (stack data) 24channel Download SEG-Y files from National Archive of Marine Seismic Surveys (NAMSS) Bob Bohannon
Raw seismic shot point data l-4-90-sc.400 24channel Bob Bohannon
Raw seismic shot point data l-4-90-sc.400-_10 24channel Bob Bohannon
Raw seismic shot point data l-4-90-sc.400-_100spt 24channel Bob Bohannon
Raw seismic shot point data l-4-90-sc.401 24channel Bob Bohannon
Raw seismic shot point data l-4-90-sc.401_051 24channel Bob Bohannon
Raw seismic shot point data l-4-90-sc.401_052 24channel Provisional best file Bob Bohannon
Reprocessed multichannel seismic reflection data 24channel Multichannel seismic (MCS) data were collected by the U.S. Geological Survey (USGS) in 1990 in the California Continental Borderland (USGS field activity L490SC). In 2021 these data were reprocessed to improve accuracy and resolvability of geologic structures and fault systems of California's continental margin. Alicia F Balster-gee
Survey information 24channel Bob Bohannon
Survey information airgun Bob Bohannon
L-4-90-SC_154294/bathy 3.5khz scanned microfilm Carol A Reiss
Survey information 3.5khz Bob Bohannon
NGDC MGD77 data - bathy 12khz Carolyn Hayashida Degnan
Raw depth (bathymetry) data l-4-90-sc.300 12khz Bob Bohannon
Raw depth (bathymetry) data l-4-90-sc.300_051 12khz Provisional best file Bob Bohannon
Survey information 12khz Bob Bohannon
Survey information sonobuoy Bob Bohannon
Free Air Anomaly data l-4-90-sc.160 gravity Bob Bohannon
Gravity land tie data l-4-90-sc.140 gravity Bob Bohannon
Gravity lines start/end control data l-4-90-sc.130 gravity Bob Bohannon
NGDC MGD77 data - gravity gravity Carolyn Hayashida Degnan
Raw gravity data from digital meter l-4-90-sc.102 gravity Bob Bohannon
Raw gravity data from digital meter l-4-90-sc.102_051 gravity Provisional best file Bob Bohannon
Survey information gravity Bob Bohannon
Edited magnetics data l-4-90-sc.220 magnetics Bob Bohannon
Edited magnetics data l-4-90-sc.221_051 magnetics Provisional best file Bob Bohannon
NGDC MGD77 data - Magnetics magnetics Carolyn Hayashida Degnan
Raw magnetics data l-4-90-sc.201 magnetics Bob Bohannon
Raw magnetics data l-4-90-sc.201_051 magnetics Bob Bohannon
Global positioning system (GPS) data l-4-90-sc.060 GPS Bob Bohannon
Survey information GPS Bob Bohannon
Best file with nav in ArcInfo E00 format integratednavigation Bob Bohannon
Integrated navigation (SINS) data l-4-90-sc.050 integratednavigation Bob Bohannon
Integrated navigation (SINS) data l-4-90-sc.051 integratednavigation Provisional best file Bob Bohannon
Integrated navigation (SINS) data l-4-90-sc.051_degree integratednavigation Bob Bohannon
Integrated navigation (SINS) data l-4-90-sc.052 integratednavigation Bob Bohannon
Lines integratednavigation Bob Bohannon
Survey information integratednavigation Bob Bohannon
Loran C data l-4-90-sc.030 RhoRho Bob Bohannon
Survey information RhoRho Bob Bohannon
L-4-90-SC_154294/SCAG airgunmonitor data on FAD Evan T Dailey
Survey information airgunmonitor Bob Bohannon

Publications

Samples collected during this field activity