Shipboard and autonomous measurements of mixed-layer deepening, internal waves and turbulence
Abstract
Detailed measurements of mixed-layer cycling, internal waves and turbulence are crucial for a full understanding of acoustic propaga tion, affecting aspects of optimal sensor operation such as adaptive beam forming and prediction of shadow zones. We propose extrao rdinarily highly rsolved measurements of these processes - shipboard measurements with our fast CTD and epsi-fish turbulence profi lers and autonomous moored profiling instruments. These measurements have three aims: i) improving prediction of deepening mixed la yers and associated sound ducting, ii) understanding and predicting seamount-generated internal tides, Gulf-Stream-generated lee wav es and the turbulence associated with the breaking of both; and iii) quantifying the effects of sound {it scattering} and {it gene ration} by strong ocean turbulence. The measurements will be both tightly coordinated and cotemporaneous with acoustic measurements by Hodgkiss/Kuperman and Colosi/Dzieciuch; data will be shared with and will benefit all other TFO-DRI projects. A key benefit of th is coherent approach is the continued building of bi-lingual physical oceanographers/acousticians, particularly early-career scien tists.This abstract is publicly releasable.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 07, 2021
- Source ID
- N000142112814
Entities
People
- Matthew H. Alford
Organizations
- Office of Naval Research
- United States Navy
- University of California, San Diego