The reflectance of the bottom is of importance when interpreting optical data in shallow water. Closure studies of radiative transfer, interpretation of laser line scanner data, lidar, and remote sensing in shallow waters require understanding of the bottom reflectance. In the Coastal Benthic Optical Properties experiment (CoBOP), extensive measurements of the material reflectance (reflectance ...

Homogeneous low-crested structures (HLCSs) on hard seabed are designed to protect beaches and regenerate coral reefs. The height of a HLCS depends the placement grid which determines crest freeboard, wave transmission concrete consumption. In real seafloor conditions, it is not easy define feasible grids for HLCSs uneven sea bottoms. this study, parameters numerical model Bullet Physics Engine ...

Submarine landslides occur along active and passive continental margins and are potentially triggered by numerous factors including the dissociation of gas hydrates. The hazard produced by such landslides can damage infrastructure (oil platforms, telecommunication lines), generate tsunamis, and cause a catastrophic release of methane to the atmosphere and ocean. Here we develop numerical models...

Abstract This study focuses on mechanisms of shelf valley bathymetry affecting the spread riverine freshwater in nearshore region. In context Changjiang River, a numerical model is used with different no-tide idealized configurations to simulate development unforced river plumes over sloping bottom, and without off estuary mouth. All simulated are surface-trapped continuously growing bulges nea...

in partial fulfillment of the requirements for the degree of Doctor of Philosophy ABSTRACT Observational work by Thompson (1977) and others has demonstrated that free topographic Rossby waves propaqate northward up the continental rise south of New England. To study the dynamical implications of these waves as they approach the shelf, Beardsley, Vermersch, and Brown conducted an experiment in 1...

Previous idealized investigations of Southern Ocean overturning have omitted its connection with the Antarctic continental shelves, leaving the influence of shelf processes on Antarctic Bottom Water (AABW) export unconsidered. In particular, the contribution of mesoscale eddies to setting the stratification and overturning circulation in the Antarctic Circumpolar Current (ACC) is well establish...

Measurements of the particulate beam attenuation coefficient at multiple wavelengths in the ocean typically exhibit a power law dependence on wavelength, and the slope of that power law has been related to the slope of the particle size distribution (PSD), when assumed to be a power law function of particle size. Recently, spectral backscattering coefficient measurements have been made using se...

Supercritical hydraulically controlled overflow of Antarctic Bottom Water from the Weddell Sea has been observed in Orkney Passage during field measurements February 2022. The is main pathway for densest layer flow to Scotia Sea. bottom current overflows sill across passage and flows down crest at 3600 m deeper than 4000 m. descending accelerates because difference height its foot. An estimate ...