FIELD OPERATIONS AND OCEAN-BOTTOM SEISMOGRAPH PERFORMANCE AND EVALUATION - KURILE ISLANDS EXPERIMENT. OCEAN-BOTTOM SEISMOGRAPH EXPERIMENTS
Abstract
A shallow-water test program and a deep-water operational program were conducted. The shallow-water tests environmentally checked the performance of 14 units which were not tested under the previous contract. Special tests of antenna design and temperature measurements were included. Of the 14 units checked, 13 were either fully operational or required minor corrections. One unit surfaced prematurely, floated inshore and was damaged on the rocks. The unit is being repaired under a new contract. Deep-water tests were conducted adjacent to the Kurile Islands Arc to evaluate the seismicity of the area and the operational worthiness of the O. B. Seis and auxiliary equipment. Results of the seismicity study are summarized in a bulletin which is presented separately. Of 18 units dropped, 14 were recovered; of the 14 recovered, 13 recorded for all or most of the time. The one unit which did not record was dropped to a depth greater than design specifications. The great pressure permanently distorted the sphere, pushing the shell against the recorder to prevent its running. However, this unit can be repaired. In general, the auxiliary equipment performed to manufacturers' specifications. The greatest problems were caused by the weather and the area of operations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 28, 1967
- Accession Number
- AD0822531
Entities
People
- Benjamin F. Kimler
Organizations
- Texas Instruments