Flood/ebb-dominance in net sediment transport of shallow sandy estuaries with tidal flats and channels (typical around the U.K.) is investigated using a 2D model (TELEMAC). The micro-tidal Dyfi Estuary is used as a case study. The along-estuary net sediment transport in the Dyfi has been predicted and characterised as ebbor flood-dominant. The simulations illustrated that shallow waters (inner-...

The removal mechanisms that govern Se concentrations in the Great Salt Lake are unknown despite this terminal lake being an avian habitat of hemispheric importance. However, the volatilization flux of Se from the Great Salt Lake has not been previously measured due to challenges of analysis in this hypersaline environment This paper presents results from recent field studies examining the spati...

As waves propagate into nearshore waters, the wave dispersive relation is significantly affected by the nonlinear dynamics of the shoaling process (Herbers et al. 2002). This could have important effects to the interpretation and application of remote sensing results of shallow water waves (Stockdon and Holman, 2000). Many field studies are carried out based on temporally measured wave data to ...

Concern for the future of reef-building corals in conditions of rising sea temperatures combined with recent technological advances has led to a renewed interest in documenting the biodiversity of mesophotic coral ecosystems (MCEs) and their potential to provide lineage continuation for coral taxa. Here, we examine species diversity of staghorn corals (genera Acropora and Isopora) in the mesoph...

In standard diffraction theory it is assumed that the water depth is constant and that the seabed is infinitely large. To account for a local varying bathymetry in shallow water (as it can occur for offshore LNG terminals) it is sometimes considered to introduce a second fixed body on the seabed representing this bathymetry in diffraction theory. Based on the results presented in this paper it ...

Particle methods are an important technique for simulating transport phenomena such as the transport of pollutants in coastal waters. Particle methods can quite accurately predict the pollutant transport in cases of steep concentration gradients after the pollutant has just entered into the water, whereas conventional numerical methods such as finite difference and finite volume methods may hav...

Hydrographic surveying and nautical charting play a vital role in the safety of navigation in coastal areas, and are thus essential to world maritime commerce. However, the status of hydrographic surveys and nautical charting world-wide is usually quite poor. As a result of the United Nations Convention on the Law of the Sea (UNCLOS), coastal states will be responsible for surveying and chartin...

A method is presented to obtain underwater topography for coastal areas using state-of-the-art remote sensing data and techniques worldwide. Synthetic Aperture Radar (SAR) data from the new German satellite TerraSAR-X with high resolution up to 1m are used to render ocean waves. As in shallow areas, bathymetry is reflected by long swell wave refraction governed by underwater seabed structures, ...

Abiotic and biotic factors determining the upper (shallow or nearshore) limit of giant kelp, Macrocystis pyrifera Agardh, were examined along a wave exposure gradient on the Monterey Peninsula, central California, USA. Wave modeling, analysis of aerial photographs from 1986 to 1989 and SCUBA surveys from 1993 to 1995 indicated a significant positive relationship between wave intensity and depth...