Effect of Moisture and Bulk Density Sampling on Neutron Moisture Gauge Calibration
Three moisture and bulk density sampling methods were evaluated for use in neutron gauge calibration. Each of the methods was comprised of a single core or portions of a core taken during...

Relationships Between Flow and Benthic Communities
Current flows can affect directly factors critical to the survival of benthic communities, including the availability of food and nutrients, the chemical quality of water surrounding benthic...

Density Currents in Pollutant Transport and Mixing
A buoyant spreading model for the current-advected plume is formulated including several distinct mechanisms: convective spreading, interfacial friction spreading, entrainment at the density...

Criticality of Density Intrusions
Previous analyses of density intrusions indicates that a steady interface cannot be maintained if the front propagates at a speed greater than that of long interfacial waves. Supercritical...

A Model for Vertical Transport at a Sheared Density Interface
A physically based model for vertical mixing and transport at a sheared density interface is presented, based on high-resolution measurements from laboratory experiments. It is found that...

Mixing Characteristics of a Transitional Stratified Two-Layer Flow
Small scale structures in a stably stratified two-layer flow are investigated. The flow configuration has the initial velocity interface displaced with respect to the density interface....

Acoustic Doppler Current Profiler for Inlet Current Measurements
A BroadBand Acoustic Doppler Current Profiler (BroadBand ADCP) was used to survey tidal currents at Shinnecock and Moriches Inlets, Long Island, NY. Measurements were made remotely form...

Three-Dimensional Modeling of Tides and Wind-Waves
A third-generation coupled discrete numerical wave prediction model is dynamically linked to a three-dimensional hydrodynamic model. The effects of water level, currents, and bottom friction...

Coastal Zone '93
Coastal Zone 93, held in New Orleans, Louisiana, July 19-23, 1993, is the eighth in a series of biennial multidisciplinary symposia on comprehensive coastal and ocean management. The papers...

Fluid Mechanics Aspects of Ocean Outfalls
Prediction of the environmental effects of ocean outfalls requires understanding of some complex fluid mechanical phenomena. These include the dynamics of merging plumes in flowing, density-stratified...

Utilization of the Coastal Areas for Aquaculture in Nigeria
The current domestic fish production in Nigeria is estimated to be 363,706 tonnes whereas the projected demand is 1,237,000 tonnes. This leaves a deficit in demand of 874,294 tonnes which...

Impacts of Winter Storms on Sediment Transport Within the Terrebonne Bay Marsh Complex
Winter storms provide important controls on erosion and deposition in coastal Louisiana. An unanswered question of the Louisiana land loss problem is how these storms impact sediment flux...

The Northern Coast of the State of Rio De Janeiro
This work presents a general characterization of a portion of the coastline of the State of Rio de Janeiro, based on observations made between 1988 and 1992, as part of Littoral Rio project....

Data Set for Verification of 3-D Free-Surface Hydrodynamic Models, Carquinez Strait, California

Specifying the Offshore Environment
Hindcasting has become a generally accepted method of producing long time series of environmental events from which environmental design criteria can be developed. The need for reliable...

Wave-Current Interaction with a Large Structure
The effects of a current on the diffraction of regular waves around a three-dimensional body are examined by a time-domain method. The Froude number is assumed to be small so that the...

Three-Dimensional Circulation Modeling of the Coastal and Ocean Environments
Incursion of the loop current, a meandering feature of Gulf of Mexico large-scale circulation, may produce large hydrodynamic forces on the offshore structures. The present study is to...

Use of X-Ray Computed Tomography in the Study of Marine Sediments
X-ray computed tomography (CT scanning) is primarily a medical imaging technique. When applied to marine sediments, it responds predominately to the spatial density distribution within...

Field Verification of a Wave-Induced Current Model
A unique data set of nearshore waves and current measurements over a bar-trough bathymetry was collected during a field experiment at Duck, NC, in October 1990. These high-quality data...

Tide- and Wind-Driven Flushing of Boston Harbor, Massachusetts
The flushing of Boston Harbor, a shallow, tidally dominated embayment with little fresh water input, is investigated using a depth-averaged model. The modeled tidal currents exhibit strong...

 

 

 

 

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