USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1993-010-FA

Other ID: none

Status: Completed

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

Funding Program(s):

Location: San Pablo Bay, California, United States, North America, North Pacific;

Principal Investigator(s): Gregory Miller

Affiliate Investigator(s): Rufus Catchings - Menlo Park

Information Specialist(s):

Data Type(s): Seismics: Ocean Bottom Seismometer, Location-Elevation: Navigation

Scientific Purpose/Goals: Deploy and recover OBSes.

Vehicle(s):

Start Date: 1993-05-24

Start Port/Location: San Rafael, CA

End Date: 1993-05-29

End Port/Location: San Rafael, CA

Equipment Used: Ocean Bottom Seismometer, GPS (wh)

Information to be Derived:

Summary of Activity and Data Gathered: Three of the four OBSes were recovered without incident. OBS C-9 confirmed release but could not be found by the recovery party. C-9 was eventually recovered by a tug boat operator on June 2nd. The OBSes worked well in this operation. There were no mechanical or electronic problems. The remote communications capability with the OBS on deck (which is new as of this operation) worked well. In small boat work such as this, the small spheres were a blessing and in fact the work could not have been done with the large spheres. Using a whaler as a deployment and recovery vehicle is marginal. The davit, which held the OBS 40 inches above the rail and 20 inches out, was essential in deploying the OBSes. Work needs to be done on developing navigational and power systems that can work effectively on small boats, particularly since the majority of recent deployments have been small boat operations.

Staff: VeeAnn Atnipp Cross, Gregory Miller

Affiliate Staff:
S. Wolf - USGS Redwood City Field Center; D. Reed - San Jose State Univ.

Notes: Original Submitted By field contained: VeeAnn Cross and Greg Miller.
Project = Ocean Bottom Seisometer Operations - San Pablo Bay, Ocean Bottom Seisometer Operations - San Pablo Bay

Location Map:

Platform(s):

photo of Revenge
Revenge

Publications

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Ocean Bottom Seismometer --- Ocean Bottom Seismometer
1993-010-FA-NL-001 ( OBS segy data )
GPS (wh) --- Navigation