Showing papers in "Continental Shelf Research in 2002"

TL;DR: In this article, a 3D model for the evolution of the settling velocity of cohesive sediments in estuarine and coastal environments is presented, which is the result of turbulence-induced aggregation and floc breakup processes.

TL;DR: In this article, a bubble model was developed to examine the sensitivity of bubble-mediated CH4 transport to several environmental parameters, such as the release depth, bubble size, dissolved gas concentrations, temperature, surface active substances, and bulk fluid motions.

TL;DR: In this paper, the authors examined the effect of overtides in a 100 km long coastal plain estuary, a 15 km long tidal creek closed at the end, and a small side channel closed at low water.

TL;DR: The Tommeliten hydrocarbon field in the North Sea was surveyed and sampled with the use of a remotely operated vehicle (ROV) in 1983, and other features were also mapped out in 1998, and the results suggest that the formation of the bacterial mats may represent the first phase of natural sealing.

TL;DR: In this paper, physical and chemical data analyzed and interpreted jointly with the remotely sensed chlorophyll a concentrations and sediment trap records show that the spring primary production maximum in the Southern Adriatic is determined by the open-sea convection and the formation of the dense water.

TL;DR: In this paper, the Ria de Vigo seafloor has been mapped, where gas escapes from the seabed to the water column have been mapped in the fill of a submarine incised valley, and various gas features have been classified into four types according to their specific seismic signatures: acoustic blanket, acoustic curtains, acoustic columns, and acoustic turbidity.

TL;DR: In this paper, benthic chambers were used to measure in situ fluxes of dissolved gases (N2,O 2, and N2O) and inorganic nutrients (NO3,N H 4, and PO4� ) in continental shelf sediments of the Mid-Atlantic Bight during spring through autumn (May- November).

TL;DR: In this article, wavelet analysis was used to discriminate times when the semi-diurnal motion was strong and for identifying a predominant 132-h period in the along channel component of both 10-week wintertime and 10week summertime current meter records.

TL;DR: In this paper, second-order textural analysis of sidescan sonar data was used to differentiate the bottom types where data is not degraded by near-range distortion (caused by slant-range and ground-range corrections), and where data was not degraded with far-range signal attenuation.

TL;DR: In this paper, the authors determined the concentrations of 210Pb and 210Po in both the dissolved ( 0.2μm) fractions in surface waters of the northwestern Mediterranean Sea.

TL;DR: The Huanghe River, due to its huge sediment load, frequent floods, and shifts in course, has had a major impact on the coastal regions of China as mentioned in this paper, and the high concentration of suspended sediment and sediment load are responsible for many strange or unique phenomena such as "hanging river" and perilous traps on the coast plain, and hyperpycnal plumes, shear fronts, fluid mud, muddy ponds, and hard plate-like sands in the subaqueous environment.

TL;DR: In this article, a 1-yr time series from an array of moorings across the Barents Sea opening was investigated with emphasis on giving a description of the monthly to seasonal variability in the transport of Atlantic water (AW) into the barents sea.

TL;DR: Very high-resolution reflection seismic investigations off the Belgian coast have revealed an extensive area marked by poor seismic penetration that is probably caused by the presence of shallow gas as discussed by the authors, and its geographical distribution is bound to a wide band oriented more or less parallel to the coast.

TL;DR: In this article, the adjoint method has been derived and implemented for solving inverse 3D shallow water flow modelling problems, where the estimation problem is formulated as a large-scale optimization problem that is solved with a gradient-based optimization method.

TL;DR: In this paper, the authors examined the hypothesis that sedimentation in the Mersey Estuary was controlled by changes to hydrodynamic flow and related sediment transport patterns outside the estuary resulting from training wall construction.

TL;DR: In this paper, a 2DH idealized local morphodynamic model for a tidal channel was used to demonstrate that estuarine bars with typical length scales on the order of the tidal excursion length can develop as the result of a positive feedback between water motion, sediment transport and the sandy bottom.

TL;DR: In this article, the authors present an analysis of nitrate, phosphate and silicate data from the Benguela upwelling system, which suggests denitrification occurring close to shore, and also nutrient trapping.

TL;DR: In this paper, the authors show that the energy spectrum is dominated by oscillations in the diurnal-inertial band and the putative source of forcing for these motions is diurnal by on-shore-off-shore windstress with a strong response to diurnal clockwise component of stress being favored by the proximity of the site (latitude 40°N) to the critical latitude for diurnal resonance (30°N).

TL;DR: In this paper, the authors used a helicopter-based sampling program to capture unprecedented measures of Eel River, northern California, flood plume events during 1997, 1998, and 1999, which implicate the energetic nearshore as a source of suspended sediment resupply to the offshore region of the plume.

TL;DR: The results suggest that the cyanobacterium Synechococcus is a major contributor to the seasonal variation of phytoplankton in the East China Sea.

TL;DR: In this article, Barnacle settlement was monitored in two sites 100 km apart along the coast of Alta and Baja California, and the authors found that Chthamalus spp., Pollicipes polymerus, and Balanus glandula settlement was consistently higher in the northern site, La Jolla (LJ), than in the southern site (LS), and that the thermocline was shallower in LJ than in LS.

TL;DR: In this paper, the authors measured the concentration profiles of dissolved and particulate 210 Pb on horizontal transects of the continental shelf and slope regions of the Gulf of Mexico.

TL;DR: In this paper, the authors analyzed time series of chlorophyll images from the 1997-2000 Seaviewing Wide Field-of-View Sensor data set to gain a perspective on the dynamical and biological variability in the Black Sea, particularly on its northwestern shelf region and along the Anatolian coastal zone.

TL;DR: In this paper, the authors combine direct observations, longer-term wave data, and model calculations to characterize resuspension and transport of fine-grained, effluent-affected sediment on the Palos Verdes shelf.

TL;DR: In this article, field measurements were carried out across the Ebro delta inner shelf using two instrumented bottom boundary layer tripods deployed at 8.5 and 12.5 m water depth.

TL;DR: In this article, a high-resolution 2D hydrodynamic model is used to examine the water level in two nearly tideless semi-enclosed sub-basins of the Baltic Sea.

TL;DR: In this paper, the authors investigated the characteristics of the last 45 km of the Ebro River in NE Spain, in terms of physiographic conditions, river discharges and hydrochemical and biological environment at three different periods in the annual cycle.

TL;DR: In this article, the first in situ velocity data collected on the shelf of Southern Brazil was examined, and the observed velocity series can be interpreted as a sum of highly variable flow correlated with local wind stress and a "residual" mean current flowing northward along the shore at a few centimetres per second.

TL;DR: In this paper, shipboard measurements of volume transports through the passages of the middle Florida Keys are used together with time series of moored transports, cross-Key sea level slopes and local wind records to investigate the mechanisms controlling transport variability.

TL;DR: In this paper, a coupled single-layer/two-layer model is used to study the South China Sea upper circulation characteristics and its dynamic mechanism, in winter, in order to investigate the effect of the Kuroshio on the upper circulation to the north of Dongsha Islands.