Source Signature Estimation and Noise Directionality in Shallow Water.
Abstract
Two experiments were carried out in August-September 1993 in a shallow water test bed region off the coast of southern California. SWellEx-1 (Shallow Water evaluation cell Experiment #1), was carried out in August 1993 west of Point Loma in approximately 200 m water. SWellEx-2 (also known as the Site Specific Experiment or SSE) was carried out in September 1993 adjacent to San Clemente island in both 450 m and 1200 m water. During both of these experiments, along-slope and cross-slope controlled source tow events were carried out for the purpose of validating predictions made by full-wave propagation models as well as to carry out an initial look at matched-field processing in shallow water. In addition, several days of ambient noise data were collected during these experiments providing an opportunity to look at the time-evolving characteristics of ambient noise horizontal and vertical directionality in shallow water. As expected, shipping noise varied substantially due to fluctuations in traffic patterns. The contribution of biologics to the noise background (at night) was surprisingly large.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1995
- Accession Number
- ADA306524
Entities
People
- William Hodgkiss
Organizations
- Scripps Institution of Oceanography