Results 261 to 270 of about 4,199 (299)

The utilization of tidal currents by the larvae of an estuarine fish

South African Journal of Zoology, 1981
No Abstract.
D Baird
exaly   +3 more sources

Radar measurements of estuarine currents and tides

Nature, 1980
exaly   +2 more sources

Secondary currents in a curved, stratified, estuarine channel

Journal of Geophysical Research: Oceans, 2001
This paper presents a study of secondary circulation in a curved stratified channel in northern San Francisco Bay over a 12.5‐hour tidal cycle. Secondary currents were strong at times (varying by up to 35 cm/s from top to bottom) but relatively transient, as the balance between centrifugal and lateral baroclinic forcing changed over time.
Jessica R. Lacy, Stephen G. Monismith
openaire   +1 more source

Calibration of estuarine current crosses

Estuarine, Coastal and Shelf Science, 1982
Abstract Tethered current crosses are simple, reliable tools in making measurements of estuarine currents in the absence of surface waves. The standard error of the estimate of current speed is less than 5 cm s−1 for the particular crosses and weights used in a calibration experiment.
openaire   +1 more source

Estuarine eutrophication in the UK: current incidence and future trends

Aquatic Conservation: Marine and Freshwater Ecosystems, 2008
Abstract Increased inputs of nutrients to estuaries can lead to undesirable effects associated with eutrophication, including algal blooms, changes in species composition and bottom anoxia. Several estuaries and coastal areas around the UK have increased nitrogen (N) and phosphorus (P) concentrations, elevated concentrations of chlorophyll a and ...
Gerald Maier, Rebecca J. Nimmo‐Smith, Gillian A. Glegg, Alan D. Tappin, Paul J. Worsfold   +4 more
openaire   +1 more source

An Approach to Separating the Current Velocity in Estuarine and Coastal Waters

Journal of Hydrodynamics, 2009
In the near-shore waters, the actual flow is mainly induced by tide, wind and salinity, and the river water runoff should also be included as a component in the estuary waters. The interactions among these major components are very complicated. Many approaches were proposed to study isolated tide and wind-driven currents or run-off based on the ...
Zhi-hui Ni, Zhi-yao Song, Li-chun Wu
openaire   +1 more source

An application of a low flow current meter to broad temperature range estuarine current measurements

OCEANS '88. 'A Partnership of Marine Interests'. Proceedings, 2003
Instruments utilizing heater thermistors as sensors can measure currents over the range of five to 50 cm/s. Owing to their small size and great sensitivity, such devices are ideal for the estimation of benthic boundary layer thicknesses, stirring rates of in situ incubation experiments, and currents in and around sessile creatures. Such an apparatus is
D.J. Murphy, E. Powell, E. Wilson
openaire   +1 more source

Tidal Straining, Density Currents, and Stirring in the Control of Estuarine Stratification

Estuaries, 1990
Buoyancy input as fresh water exerts a stratifying influence in estuaries and adjacent coastal waters. Predicting the development and breakdown of such stratification is an inherently more difficult problem than that involved in the analogous case of stratification induced by surface heating because the buoyancy input originates at the lateral ...
J. H. Simpson, J. Brown, J. Matthews, G. Allen   +3 more
openaire   +1 more source

Results from cross-correlation measurement of estuarine current velocity

The Journal of the Acoustical Society of America, 1998
A technique for accurate measurement of the average water velocity in estuarine environments has been developed. The technique is based on measuring the travel time of 200-kHz ultrasonic signals. A high degree of precision has been obtained using a cross-correlation technique, and long, detailed time series have been recorded.
Roger W. Bland, Daniel G. Neuman
openaire   +1 more source

The effect of wave‐current interaction on tidally forced estuarine circulation

Journal of Geophysical Research: Oceans, 1993
Reductions in the velocity and surface elevation of tidal flows that have been observed in the Delaware Bay, a coastal plain estuary on the eastern coast of the United States, correlate well with local wind events. While there are several mechanisms that could account for this phenomenon, we consider hydrodynamic wave‐current interaction to be a ...
Leslie C. Bender, Kuo‐Chuin Wong
openaire   +1 more source