ATTENUATION OF LOW-FREQUENCY SOUND IN THE NORTHEAST PACIFIC OCEAN
- Authors
- Corporate Authors
- Defence Research Establishment Pacific, Victoria BC (CAN)
- Abstract
- Long-range propagation losses were measured at frequencies from 0.025 to 0.8 kHz to the north and south of a receiver at 46 degrees N, 143 degrees 30 degrees W in the Northeast Pacific. To the south of the station, the attenuation losses experienced a pronounced minimum near 50 Hz and approached the one-half Thorp value at 0.8 kHz. An examination of the behavior of the attenuation coefficient as a function of range indicated that a range of at least 700 km would be required to make meaningful measurements of attenuation in this area. To the north of the receiving station, focusing of the sound due to a rapidly shallowing sound channel prevented reliable measurement of the attenuation coefficient at any range.
- Report Number
- REPR-82-3 —
- Date of publication
- 01 Jan 1982
- Number of Pages
- 4
- Reprinted from
- J Acoust Soc Am, vol 72, no 3, 1982, p 888-891
- DSTKIM No
- 83-00511
- CANDIS No
- 38579
- Format(s):
- Hardcopy;Originator's fiche received by DSIS
Document 1 of 1
- Date modified: