Utilization of non-destructive and non-invasive methods for the real-time underwater remote sensing is one of the challenging and desired tasks in the maritime security and safety as well as the harbour surveillance. Our aim was to develop and verify advanced electromagnetic sensors for a seabed objects detection and inspection. The seabed is a complex environment often covered with the sand, d...

The long-term goals of this work are to improve ocean acoustic reverberation modeling and sonar performance predictions in shallow waters by developing inversion procedures to estimate seabed scattering and geoacoustic properties with uncertainties, as well as investigating the importance of various scattering processes. Important issues include: investigating the angular and frequency dependen...

Abstract We have developed a model of geospatially estimating carbon accumulation and methanogenesis in seabed sediments that uses more accurate sophisticated inputs to models than used previous estimates. Using this hybrid stochastic deterministic model, we estimate the maximum available for global seabed, subsequent microbial methane generated as function location depth (including gas hydrate...

We present an analytical solution for the scattering of linear progressive waves by a surface rectangular obstacle above muddy seabed. The bottom cohesive mud is assumed to act as Newtonian fluid, and thickness layer considered be comparable Stokes boundary thickness. Our results based on matched eigenfunction expansions incorporate combined effects obstacles fluid bottom. By reducing or dimens...

OBJECTIVES The specific objective of this project is to develop and validate theoretical and numerical models of the 3-D spatial statistics of the seismo-acoustic field produced by targets on and within a rough elastic seabed. These models are then applied to develop an improved understanding of the dominant physical processes governing the performance of moderate-to-high frequency sonar system...

The long-term goals of this research are to improve the ability of benthic biologists and biological oceanographers to observe life on and in the seabed; to describe the interactions between the animals that live there, their neighbors and their food; to improve our understanding of the coupling between the benthic and the pelagic communities; and to assess biologically mediated changes in thos...

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