Enabling simultaneous observations of ocean sound speed structure and advection for the Task Force Ocean, New England Seamounts experiments
Abstract
Dr. Robert Headrick, Task Force Ocean Program ManagerFunding for 25 moored CTD sensors and 4, long range 75 kHz ADCPs are requestedto augment a system of four low frequency acoustic transceiver moorings to be deployed as part of the Task Force Ocean, Departmental Research Initiative at the New England Seamounts main experiment in 2024. The development of these moorings is a collaboration between the Scripps Institution of Oceanography (Dr. Matt Dzieciuch) and the University of California Santa Cruz (Prof. John Colosi). Fifteen of the CTD sensors will be new and 10 will be in-hand units to be re-furbished for deeper deployment depths. The CTD sensors are required to resolve the complex water mass/ sound speed structure at the seamounts consisting of slope water, Gulf Stream water,and Sargasso Sea water. The ADCP#s are required to quantify the role of advection in determining the space/time scales of the soundspeed field in this dynamic Gulf Stream/Seamount setting. Lastly funds are requested for ADCP mooring cages, batteries, and auxiliary components, for the 2024 deployments. This combination of acoustic and oceanographic data collection will help the DRI address one of its fundamental hypotheses namely, evaluate the information needed for predicting 4-d acoustic arrival patterns (Impulse Response) in the dynamic Gulf Stream over the New England Seamounts, and evaluate the impacts upon signal detection, localization and tracking.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 24, 2023
- Source ID
- N000142312693
Entities
People
- John A. Colosi
Organizations
- Office of Naval Research
- United States Navy
- University of California, Santa Cruz