Accession Number:

ADC017835

Title:

Horizontal Directionality of Ambient Noise During the CHURCH OPAL Exercise

Personal Author(s):

Corporate Author:

NAVAL OCEAN SYSTEMS CENTER SAN DIEGO CA

Report Date:

1978-10-01

Abstract:

Ambient noise horizontal directionality was measured in the Northeast Pacific Ocean during the CHURCH OPAL exercise of September 1975. Results obtained from the analysis of data acquired by a towed line-array are reported. The results for frequencies dominated by shipping below 200 Hz indicate a definite north-south bias in excess of 15 dB at some frequencies. The results are similar to the CHURCH ANCHOR results obtained at the same location 2 years previously, supporting the idea that the pseudo-stationary background noise is repeatable and hence, predictable.

Descriptive Note:

Research rept. Oct 1975-Oct 1978

Supplementary Note:

DOI: 10.21236/ADC017835

Pages:

0088

Descriptors:

Identifiers:

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File Size:

5.58MB

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