Showing papers in "Continental Shelf Research in 2008"

TL;DR: In this article, a trend of increasing phytoplankton standing stock from 1984 to 2002 appeared in the Changjiang River estuary and adjacent coastal waters, especially in late spring.

TL;DR: In this paper, general relationship of riverine bicarbonate concentrations and fluxes as a function of drainage basin mineral content and runoff are examined using a database of the 25 largest rivers in the world.

TL;DR: In this article, the spatial structures and temporal evolution of the southern Yellow Sea Cold Water Mass (YSCWM) were quantified using hydrographic data obtained during the joint survey of the Yellow Sea by the First Institute of Oceanography, China and the Korea Ocean Research and Development Institute, Korea.

TL;DR: In this article, a method for quantifying chlorophyll concentrations in positively flagged pixels using fluorescence line height (FLH) data obtained from the Moderate Resolution Imaging Spectroradiometer (MODIS) is introduced.

TL;DR: In this article, a cross-validated, empirical habitat suitability model, using both median grain size and mud content, showed an a posteriori average correctly classified instances (CCI) of 79% (community-dependent CCI ranging from 72% to 86%) and a Cohen's kappa of 0.71.

TL;DR: In situ observations were combined with 3D modeling to gain understanding of and to quantify the suspended sediment transport in the Gulf of Lions (NW Mediterranean Sea) over a 6-month period (November 2003-May 2004) as mentioned in this paper.

TL;DR: A combination of sources is required to maintain populations >106 cells L−1, and estimates of remineralization of dead fish could supply a significant proportion of bloom maintenance requirements but the rate of supply must still be determined.

TL;DR: In this article, textural derivatives based on bathymetry from multibeam hydroacoustics with underwater video observations were combined to model and map sessile biota between 10- and 60m water depth over 35 km2 in Point Addis Marine National Park (MNP), Vic., Australia.

TL;DR: In this paper, the authors provide simple expressions which best represent the observed scattering properties of sandy sediments, and provide coastal scientists, who use acoustics for sediment transport measurements, with simple expressions.

TL;DR: In this article, long-term patterns in riverine nutrient flux in the lower Mississippi River were examined in relationship to spatial and temporal patterns in surface nutrient concentrations, chlorophyll, and primary productivity in the outflow region in the northern Gulf of Mexico.

TL;DR: The authors investigated mixing processes under stratified conditions on the Northwest European Continental shelf using a numerical model (POLCOMS) and found that convection induced by vertical shearing of horizontal density gradients is a regularly occurring feature in the bottom and surface boundary layers in this open shelf-sea situation.

TL;DR: In this article, the 3-d coupled physical-biogeochemical model ECOHAM (version 3) was applied to the Northwest-European Shelf (47 degrees 41'-63 degrees 53'N, 15 degrees 5'W-13 degrees 55'E) for the years 1993-1996.

TL;DR: In this paper, seasonal variations in the inorganic carbon system in the Pearl River estuary are examined based on data from five surveys during the spring, summer, fall, and winter seasons.

TL;DR: The microbial food web dominant in the western BoB during SIM might be responsible for the lowest mesozooplankton biomass observed and the long residence time of the organic carbon in the surface waters could be a causative factor for the low vertical flux of biogenic carbon during SIM.

TL;DR: In this article, the authors investigated the annual and inter-annual longshore transport at a high-energy dissipative beach (St. Trojan, SW Oleron Island, France), over the period 1997-2006.

TL;DR: In this paper, numerical modelling exercises designed to reproduce the Proudman resonance on a shelf were presented. But the results were discussed in light of worldwide documented destructive meteotsunami events, putting the attention particularly on the effects of the disturbance wavelength, on the weakening of the resonance in near-resonant conditions and on the effect of a slope to the resonance strength.

TL;DR: In this article, the authors studied shelf-to-canyon suspended sediment transport during major storms at the southwestern end of the Gulf of Lions and found that shelf water flowed downcanyon producing strong near-bottom currents on the canyon head due to storm-induced downwelling, which was enhanced by dense shelf water cascading in February 2004.

TL;DR: In this paper, the authors proposed a model that explains why surface blooms of Karenia may develop even when nutrients on the west Florida shelf are low, and showed that up to a 10-fold increase in chlorophyll biomass over 1-to 2-d periods can be explained by in situ growth.

TL;DR: In this paper, the authors made extensive physical and biological measurements of the surface sediments within the shallow, semi-urbanised Coombabah Lake in southern Moreton Bay, Australia.

TL;DR: The results show that nutrient concentration, oxygen deviation from saturation, chlorophyll a and also the Caspian Sea Trophic Index (TRIXCS) increase significantly after the introduction of an alien species.

TL;DR: In this article, a historical data set is used to describe the coastal transition zone off Northwest Africa during spring 1973 and fall 1975, from 17° to 26°N, with special emphasis on the interaction between subtropical (North Atlantic Central Waters) and tropical (South Atlantic Central waters) gyres.

TL;DR: In this article, a 10-year time series of salinity, temperature, chlorophyll a (chl a), dissolved oxygen (DO), dissolved inorganic nitrogen (DIN), silicate (SiO4) and orthophosphate (PO4) at three representative stations around Hong Kong were used to examine if excess nitrogen in estuarine influenced waters is due to P limitation.

TL;DR: In this article, the authors show that the Yangtze River is always supersaturated with respect to CO 2 probably because the decomposition of terrestrial organic matter overwhelms the consumption of CO 2 due to biological production.

TL;DR: In this article, a series of nested circulation models have been developed with forcing by realistic winds, tides, and larger scale oceanographic conditions (taken from a global circulation model). Dispersion and connectivity patterns have also been estimated over the shelf using particle-tracking techniques.

TL;DR: The intertidal topography in the vicinity of the contact zone between a longshore-migrating Amazon-derived mud bank and the muddy terrestrial shoreline in French Guiana was defined from a combination of satellite-based SPOT images, airborne lidar data and high-resolution total station ground surveying of a 75,000 m2 plot as mentioned in this paper.

TL;DR: In this paper, the authors obtained information on dugong life history from specimens obtained from female dugongs as they were butchered for food by Indigenous hunters at two major dugong hunting communities in Torres Strait: Daru (9.04°S, 143.21°E) in 1978-1982 (a time of sea grass dieback and recovery) and Mabuiag Island in 1997-1999 (when sea grasses were abundant).

TL;DR: In this paper, the authors evaluated, for one of the most intense and shallow OMZ, the simultaneous N2O and CO2 fluxes at the air-sea interface.

TL;DR: In this paper, an array of acoustic and optical sensors were placed at three stations 1 km from the Santa Clara River mouth in 10m water depth during January and February 2004, and the combined results provided field evidence that high suspended-sediment concentrations from rivers (>1.5 g/l) may rapidly form hyperpycnal sediment gravity currents immediately offshore of river mouths, and these pathways can explain a significant portion of the river-margin sediment budget.

TL;DR: This article analyzed surface sediments of the Louisiana Continental margin (LCM) to distinguish differences in the degradative state of sedimentary organic matter along and between two major depositional pathways (along shore and offshore to the Mississippi Canyon) from Southwest (SW) Pass in July 2003.

TL;DR: In this article, the response of the density-driven circulation in the Chesapeake Bay to wind forcing was studied with numerical experiments, and the effect of vertical stratification on wind-induced flows was also investigated by switching it off.