Analysis of MSS (Marine Seismic System) and OBS (Ocean Bottom Seismograph) Data Collected during the NGENDEI Seismic Experiment
Abstract
Results of the data analysis employing data collected during the NGENDEI Seismic Experiment in the southwest Pacific Ocean are presented. This experiment tested the DARPA Marine Seismic System (MSS) and verified the improved signal-to-noise ratio achieved by burying the instrument within the oceanic crust. Generally, all the goals of the experiment were achieved. The experiment, which took place on the Deep Sea Drilling Project Leg 91, was designed to test the MSS in a realistic environment near an active submarine trench. The Scripp's ship, the R/V Melville, was used in addition to the D/V glomar Challenger for tasks related to site surveying, ocean bottom seismograph (OBS) deployment and refraction shooting. Deployment of an autonomous recording package on the seafloor was successful. The OBS's launched several times during the course of the experiment operated correctly in all instances including the 45 day teleseismic recording phase at the end. The MSS recording packages as well as the six OBS's were recovered at the end of the experiment. The MSS was left in the borehole and the coaxial cable was terminated in a dummy load. The mooring system used for recovery was redeployed in the event a future experiment became necessary or desirable.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1986
- Accession Number
- ADA174754
Entities
People
- John A. Orcutt
Organizations
- Scripps Institution of Oceanography