Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 444 for “"estuarine"”.
-
Coastal sources of estuarine inflow
… with simple forcing. The model grid features an estuarine channel next to a sloping, unstratified shelf with mixing provided by a single frequency, 12-hour tide. Inflow is identified using Total Exchange Flow method (MacCready, 2011) in conjunction with particle tracking. When there are no shelf …
-
THE MICROSTRUCTURES OF ESTUARINE PARTICLES
A systematic study of the surface properties of suspended and bed sediments from the Tamar Estuary and Restronguet Creek was carried out using a nitrogen adsorption technique. The surface areas and porosities of the particles were determined using BET theory and capillary models applied to the gas …
-
MEASUREMENT AND MODELLING OF ESTUARINE CHEMISTRY
… of the Tweed Estuary has been encoded using the Estuarine Contaminant Simulator, ECoS. The model results of axial and time series variations in water elevation, salinity and turbidity are compared to field data recorded during the LOIS survey programme. The organic and inorganic controls on …
-
Dynamics and kinematics of an estuarine network
This thesis addresses the dynamics of estuarine networks, based on hydrographic observations in Newark Bay, a sub-estuarine network connected to the Hudson River estuary through New York Harbor. Estuarine networks differ from simple estuaries in that they may have multiple connections to the ocean, …
-
Detecting anthropogenic impacts on estuarine benthic communities
… loading, and heavy metal contamination) on estuarine benthic communities. Using Gradient Forest analysis, I explored the relative importance of environmental factors, operating across multiple spatio-temporal scales, in influencing patterns of compositional turnover in estuarine benthic …
-
THE VERTICAL STRUCTURE OF ESTUARINE TIDAL CURRENTS
<p>The surface slope induced pressure gradient, mean current velocity profile, and bottom stress are investigated both theoretically and experimentally for a tidal channel in a well-mixed estuary. The theory focuses on the use of eddy viscosity models. Surface slope estimates based on tide …
-
Biodegradation of Volatile Hydrocarbons in Estuarine Environments
… organic compounds (VOCs) commonly found in estuarine environments. Benzene and toluene are toxic and carcinogenic at varying concentrations. Isoprene, ethane and propane are emitted from marine environments to the atmosphere where they can alter atmospheric chemistry and thus climate in …
-
Dynamics and kinematics of an estuarine network
This thesis addresses the dynamics of estuarine networks, based on hydrographic observations in Newark Bay, a sub-estuarine network connected to the Hudson River estuary through New York Harbor. Estuarine networks differ from simple estuaries in that they may have multiple connections to the ocean, …
-
The Hydrodynamic and Estuarine Physics Of Maketu Estuary
… geomorphologicaly "perched" and "low meso-tidal" estuarine lagoon dissected by numerous narrow tidal channels, 10-30 m wide with typical maximum depth of 1 m below MSL. At present, the inlet entrance is about 120 m wide and 2.6 m deep at high tide. A bottom-towed ADP technique was used to collect …
-
Predicting estuarine algal blooms using artificial neural networks
… Cryptophyta and Chlorophyta. Predicting estuarine algal blooms will enable proactive management regimes to be implemented, by forewarning managers of an impending algal bloom. To monitor algal blooms a telemetric buoy was deployed in the Berowra Estuary which records (at 15 minute …
-
Estuarine Ingress of the Blue Crab Callinectes Sapidus
… postlarvae (megalopae) collected in coastal and estuarine areas to a range of salinities and 2) determining the cue that stimulates acclimation of coastal megalopae to low salinities, the time to acclimation, and the decrease in salinity necessary for acclimation. Coastal megalopae were less …
-
Numerical Modelling of Geomorphological Processes in Estuarine Waters
… for predicting geomorphological processes in estuarine waters have been under consideration, with particular emphasis on the unsteady initiation of motion criteria for sediment particles. The governing hydrodynamic, sediment transport and bed level change equations are reviewed in their …
-
Wave-induced sediment transport on an estuarine intertidal flat
… responsible for sediment entrainment on estuarine intertidal flats, however a detailed understanding of the temporal and spatial variability of wave processes, and the way in which these control estuarine sediment transport, is lacking. The aim of this thesis is to redress this …
-
The Fate and Effects of Contaminants in Estuarine Environments
… contaminants. A novel set of data on New Zealand estuarine species, not usually screened for pollutants, has been assembled in the context of a number of estuarine systems that have been influenced by a range of anthropogenically generated contamination events. The combined use of diffuse gradient …
-
Interaction between the coastal ocean and the estuarine systems
<p>Fluctuating winds change the interaction between an estuary and its adjacent coastal ocean. This change in the interaction determines how the wind-induced changes in the estuary influence the near-shore coastal ocean and vice-versa.</p><p>The first chapter examines the water properties in the …
-
Design for education and environment: Jacksonville Estuarine Research Center
The relatively recent success of the aquarium as a tourist destination has promoted a National interest in marine life. In the past twenty years cities have built aquariums that draw millions annually to various locations, justifying financial maintenance of delicate underwater life systems and …
Page 1 of 23