Test of the New ONR Ocean Bottom Seismographs on the Juan de Fuca Ridge
Abstract
Sea tests are vital to debug the ONR ocean bottom seismographs OBS performance, especially if the instruments are to perform reliably during the early ONR funded ULF/VLF experiments. These instruments were tested in a realistic deep-sea deployment under conditions where there was little experimental risk. The SERA Expedition (Seismic Experiments on the Rise Axis) was an ideal setting for testing these instruments since the EPR Natural Laboratory provided both local and distant earthquakes as well as airgun sources from the R/V Washington. The instruments recorded seismic data continuously during a four day deployment. This experiment provided an excellent variety of signals upon which to refine the instruments.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1992
- Accession Number
- ADA247733
Entities
People
- John A Hildebrand
- Leroy M. Dorman
Organizations
- Scripps Institution of Oceanography