Turbulence Modelling of Suspended Sediment in the Surf Zone
A computational model is developed for the prediction of the wave period averaged turbulence structure under a breaking wave. The principal forcing function for the model is the generation...
Effects of Fluid Accelerations on Sediment Transport in Surf Zones
Two hydraulic model tests were run in a wave flume using irregular waves to obtain detailed data on the cross-shore variations of the pressure gradient on a 1:20 smooth, impermeable slope....
Cross-Shore Sediment Transport Under Irregular Waves in Surf Zones
A numerical model is proposed to predict the free surface elevation and depth-averaged velocity in the surf and swash zones for normally incident random waves. Comparison of the numerical...
Transformation of Random Breaking Waves and Its Empirical Numerical Modeling Considering Surf Beat
The free surface characteristics of random waves in the shoaling and surf zones on a beach of uniform slope were examined experimentally. The effect of incident wave grouping was found...
Grain-Shape Analysis of Littoral and Shelf Sands, Southern California
Estimation of the exchange rates and determination of transport mechanisms and pathways associated with the onshore-offshore vector is one of the greatest sources of error in sediment...
Net Late Holocene Emergence Despite Earthquake-Induced Submergence, South-Central Chile
Intertidal deposits show net late Holocene emergence along the Pacific coast near Maullin and Carelmapu, Chile (latitude 41.6?-41.7?S). The maximum amount of net emergence is about 1 m...
Regional Beach Sand Volumes of the Pacific Northwest, USA
Eight small littoral cells ranging from 5-60 km in length have been surveyed by beach profiling and seismic refraction to establish active beach sand volumes in the Pacific Northwest region....
A New Approach to Waterfront Development and Use Control
One of America's most significant waterfront communities is faced with complex problems regarding the preservation and enhancement of its maritime and waterfront heritage....
Marina Parking Study
This marina parking study establishes a rationale for determining parking demand at marinas on the north shore of Long Island Sound in Connecticut and New York. The study was performed...
Three-Dimensional Plume Dynamics in the Vadose Zone: PORFLO-3 Modeling of a Defense Waste Leak at Hanford
In 1973, approximately 450 m3 of liquid containing radioactive and chemical wastes leaked from the 241-T-106 single-shell tank into the vadose zone...
Application of Interactive Videodisc for Work Zone Traffic Control Training
This paper describes the development of the Interactive Videodisc Training (IVT) system and a training course on work zone traffic control. The IVT system uses a microcomputer-controlled...
Vertical Transport in the Vadose Zone by Fingering
Water containing contaminants may infiltrate through the vadose zone as a series of fingers which result from a hydrodynamic instability initiated at an interface in which a fine textured...
Nitrate and Bromide Transport Through a Vadose Zone in New Jersey
Ongoing field experiments on monitoring transport of Sodium Nitrate and Potassium Bromide in the vadose zone over a shallow groundwater table in the coastal plains of New Jersey are discussed....
Land Use Implication of Urban Intermodal Operations
In order to efficiently handle freight in an urban/suburban environment requires a working combination of roads and facilities, both of which consume land. Land in turn is one of the most...
Coastal Zone Planning
The first objective of this methodology is to provide a feasible and practical tool to identify the potentialities of the coastal zone. The coastal environment constitutes a fragile, little...
The Coastline Between Rio De Janeiro and Cabo Frio
The coastline between Rio de Janeiro and Cabo Frio is characterized by successive long beach arcs, oriented in the East-West direction. The beaches are separated by rocky headlands resulting...
Vertical Distribution of Barnacles of the Intertidal Rocky Shores of Guanabara Bay, RJ, Brazil
This paper aims to give a quantitative analysis, using the belt-transect method, to describe the Balanomorpha species vertical zonation models of the intertidal in the rocky beaches of...
Importance, Establishment and Management Plan of the Parque Nacional Marinhos Dos Abrolhos, Brazil
On April 6th, 1983, the 'Parque Nacional Marinho dos Abrolhos' (PARNA) was created by a decree of the Brazilian Presidency. The PARNA was established with two...
Tourism Versus Conservation in Fernando De Noronha Island, Brazil
Conscious of the problems created by tourism expansion and searching for a definition of the uses compatible to the restoration and the maintenance of ecological equilibrium, the previous...
Simulation of Oxygen Dynamics in the Vadose Zone
A microcomputer model VIP (Vadose Zone Interactive Processes) was developed as an extension of the RITZ model to provide a mathematical description of land treatment systems for the disposal...
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