Improving predictions of mid-frequency sound propagation and reverberation in a deep ice-covered ocean
Abstract
This one-year effort is aimed to investigate possibilities for improving predictions of mid-frequency sound transmission and reverberation in a deep ice-covered ocean at short and medium ranges. The project suggests developing a physics-based model that accounts for roughness of the seafloor and sea ice, as well as for stratification of the deep arctic ocean water. The model will be used for a trial analysis of a dataset collected by a NPS team during ICEX16 using mobile sources transmitting various mid-frequency waveforms, CW pulses and LFM sweeps, at various combinations of source-receiver ranges and depths. The spatial and time-frequency structure of multi-path propagation arrivals and reverberation caused by multiple reflections and scattering from rough ice and bottom will beanalyzed, and results of model-data comparisons will be presented.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- May 05, 2021
- Source ID
- N000142112421
Entities
People
- Anatoliy Ivakin
Organizations
- Office of Naval Research
- United States Navy
- University of Washington