Analysis and Modeling for Task Force Ocean New England Seamounts Experiments and ONR Arctic Experiments
Abstract
This is a proposal to continue funding my Ocean Acoustics and Dynamics Laboratory (OADL) that has recently moved from the Naval Postgraduate School (NPS) to the Department of Applied Ocean Physics and Engineering (AOPE) at the Woods Hole Oceanographic Institution(WHOI). Funds are requested for the three fiscal years 2025-2027. The efforts focus on data analysis, modeling, and theory associated with several office of Naval Research (ONR) ocean acoustics field programs including the Task force Ocean (TFO) Department Research Initiative (DRI), New England Seamounts Calibrated Acoustic Fluctuation Experiment (NESCAFE), other TFO DRI field efforts emphasizing 3-D acoustics, and several Arctic programs such as the CANada Basin Acoustic Propagation Experiment (CANAPE), the Coordinated Arctic Acoustic Thermometry Experiment (CAATEX) and the High Arctic Acoustic Thermometry and Soundscapes (HiAATS) experiment. In addition, there is a strong emphasis on education of PhD and MS students in the Massachusetts Institute of Technology (MIT), WHOI Joint Program including the Navy program, and mentoring of postdoctoral scholars and early career scientists.The work can be separated into three general areas. First, there is the analysis of NESCAFE observations from a yearlong deployment of a 4 mooring 250 Hz acoustic tomography transceiver array and a water column spanning oceanographic mooring that will be recovered in June 2025. This work willbe done in close collaboration with Matthew Dziciuch#s group at the Scripps Institution of Oceanography (SIO) and key scientists will be Joint Programs students Will Harris and LT Katherine Hoekstra, WHOI new postdoc, Dr. John Ragland, WHOI researcher and modelerDr. Brendan Decoursy, WHOI senior scientist Magdalena Andres, and Emeritus MIT Professor Arthur Baggeroer. The second thrust of theeffort will be analysis of acoustics in the Beaufort/surface duct and seismo-acoustc ice interaction. This work will use arctic data sets from CANAPE, CAATEX, and HiAATS again with close collaboration with SIO. WHOI Navy student LT Jonathan Levay and SIO postdoc Hunter Aikins will work on the Beaufort/surface duct and WHOI assistant scientist Gil Averbuch will work on ice interactions. Lastlyassociated with the TFO DRI we will examine bottom boundary layer acoustics (BBLA) using oceanographic boundary layer observations from NESCAFE and numerical modeling. This effort has a long-term goal to develop a mid-frequency transceiver system that can be usedto monitor small scale processes in the ocean such as internal waves and turbulence. This effort will involve engineering support from WHOI#s Advanced Engineering Lab (AEL) led by Dr. Lee Freitag, and intellectual input from WHOI#s Dr. Andone Lavery, Tim Duda, and Gil Averbuch, and SIO#s Matthew Alford and Gunnar Voet.Approved for Public Release
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Nov 26, 2024
- Source ID
- N000142512028
Entities
People
- John A. Colosi
Organizations
- Office of Naval Research
- United States Navy
- Woods Hole Oceanographic Institution