Feasibility and accuracy of multi-component models of ocean ambient noise to predict noise spectra on a short-time scale and assess long-term trends in noise components
Abstract
The proposed research aims to develop and test multi-component models of ocean ambient noise that predict noise spectrum levels, especially at short time scales. Test models would be developed for ambient noise in waters surrounding Australia and would include physical, anthropogenic and biological sources of ocean noise. The proposed research would also investigate changes and long-term (decadal) trends in ocean ambient noise off Australia. The proposed investigation would use data from various instruments and platforms, but the central contribution would be data collected from the Integrated Marine Observing System (IMOS) of Australia, in continental shelf areas off the western, eastern and southern coasts off Australia. The novelty of the research would be developing a capability to predict noise levels on short time scales that is comprehensive by including anthropogenic, physical, AND biological contributions in the noise predictions. Additionally, this effort would provide a unique perspective on ocean ambient noise and related trends in the waters surrounding Australia. The effort leverages data collected by IMOS and the Defence Science and Technology Group (DSTG) and would be collaborative with DSTG researchers. This effort will further strengthen US-Australia collaboration in oceanography and acoustics, as US investigators are also interested in this research.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 15, 2019
- Source ID
- N629091912100
Entities
People
- Alexander Gavrilov
Organizations
- Curtin University
- Office of Naval Research
- United States Navy