Sediment Transport Processes at Sandbridge, VA
Sandbridge Beach is a primarily residential community located along a 7 km reach of narrow barrier beach. Rates of erosion in this area historically have been high, reaching as much as...
Shoreline Response of Northern New Jersey Barrier System
The barrier island system along northern New Jersey coastline was evaluated for changes in shoreline trends, based on recent shoreline mapping and in support of U.S. Army Engineer, New...
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...
Recent Erosion in the Stable Ipanema-Leblon Beach in Rio De Janeiro
This paper presents the findings of a diagnostic study contracted by the City Hall of Rio de Janeiro, concerning beach erosion problems. It first reviews the problem and existing data....
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...
In Situ Measurement of Preferential Flow
An experiment was performed that quantifies the variability of flow paths in the vadoze zone. Bromide tracer and an organic dye, which has many of the same transport characteristics as...
Engineering Models for Coastal Sediment Transport
During the last ten years Danish Hydraulic Institute (DHI) has together with the Institute of Hydrodynamics and Hydraulic Engineering (ISVA) of the Technical University of Denmark been...
Wave?Current Interaction and Sediment Transport
The paper reports on a study into whether a close relationship between the mixing (diffusion) coefficient for the sediment, ?s, and the mixing (diffusion)...
Using Sediment-Threshold Theories in Waves and Currents
Fundamentally different threshold-of-motion theories were applied to sand transport in two different coastal environments. Several recommendations for threshold application were reached....
Transport of Grain-Water Mixture by Waves
The numerical modelling of the morphological changes of coastal regions is hampered by the multiplicity of empirical sediment transport formulae. The paper discusses the modes of transport...
Agriculture and Groundwater Quality
Nitrates and pesticides used in agriculture cause groundwater degradation. Agricultural practices in the U.S. will have to be changed to alleviate the health effects of these chemicals....
Design Considerations for Trucks in Work Zones
In an Eastern state a 3. 8 mi (6. 2 km) work zone had 14 accidents during a project duration of 120 days. Eleven of the 14 accidents occurred at temporary crossovers where traffic was...
Accommodation of Trucks on the Highway
Safety in Design
This book contains the papers presented at the symposium on accommodation of trucks on highways held in Nashville, Tenn., May 11, 1988. The papers address highway factors that contribute...
Sorption and Transport of Aldicarb Through the Vadose Zone
The literature was reviewed regarding the sorption and transport of a nonionic organic pesticide aldicarb, an extremely toxic and relatively water soluble carbamate insecticide that has...
The Physics of Sediment Transport by Wind and Water
Sponsored by a special projects committee under the guidance of the Sedimentation Technical Committee of ASCE. This collection contains noteworthy,...
Artificial Recharge Research at the University of Arizona
This paper summarizes pit- and well-recharge trials at Tucson, Arizona. The pit recharge trials examined management techniques and characterized flow patterns in the 80 ft thick vadose...
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