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Tuesday, April 21, 2020 | History

2 edition of Observations of near-bottom flow in a wave-dominated nearshore environment found in the catalog.

Observations of near-bottom flow in a wave-dominated nearshore environment

J. J. Fredericks

Observations of near-bottom flow in a wave-dominated nearshore environment

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Published by Woods Hole Oceanographic Institution in [Woods Hole, Mass.] .
Written in English

    Subjects:
  • Fluid dynamic measurements.,
  • Laser Doppler velocimeter.,
  • Ocean waves.

  • Edition Notes

    Statementby J.J. Fredericks, John H. Trowbridge, Yogesh C. Agrawal.
    SeriesWHOI -- 94-04., WHOI (Series) -- 94-04.
    ContributionsTrowbridge, John H., Agrawal, Yogesh C., Woods Hole Oceanographic Institution.
    The Physical Object
    Paginationvi, 158 p. :
    Number of Pages158
    ID Numbers
    Open LibraryOL15394831M


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Observations of near-bottom flow in a wave-dominated nearshore environment by J. J. Fredericks Download PDF EPUB FB2

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Janet J. Fredericks John H. Trowbridge A tall tripod equipped with two acoustic Doppler velocimeters (ADVs) was deployed at a water depth of 15. The location of Hagist Ranch Field, as shown in Figure 2, is in north central Duval and south central McMullen counties, Ranch Field is roughly miles ( km) south of San Antonio, 12 miles (20 km) north of Freer, and 85 miles ( km) west-northwest of Corpus Christi.

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Snedden 1 and Dag Nummedal 2 1 Mobil Exploration Norway, Inc., Cited by: A simple model for the near‐bottom combined wave and current flow over a moveable sediment bed is presented.

The model is an extension of the Grant and Madsen () combined wave and current model, with moveable bed effects on the physical bottom roughness included as by Grant and Madsen ().

Nearshore morphological modelling is challenging due to complex feedback between hydrodynamics, sediment transport and morphology bridging scales from seconds to years. Such modelling is, however, needed to assess long-term effects of changing climates on coastal environments, for example.

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Advances in Life Cycle Assessment and Emergy Evaluation with Case Studies in Gold Mining and Pineapple Production. This microtidal wave-dominated environment is characterized by the presence of a double crescentic nearshore bar and a cuspate shoreline with a m wavelength.

Wave climate is moderate at this site and most of the significant morphological. The near‐bottom current velocities were measured within a range of ± m s −1 with an accuracy of 10 −3 m s −1 and a sampling frequency of 8 Hz.

The near‐bottom current speed was calculated from the two horizontal components of the measured current velocities and later used for all subsequent and statistical analyses.

Cited by: The variation of bed drag in a mud-dominated environment under wave action is investigated here, using field observations of waves, currents, and suspended sediment concentration.

During diurnal water level changes of m average amplitude and moderate wind and wave events at 5 m depth on a mild slope, muddy shelf, winds in excess of 10 m/s Cited by: 4.

online version of the program book. Please click the following link to download and install: When you are finished installing, please return to this window and PRESS. Measurements of longshore sand transport, wave breaker height, longshore current velocity, and water temperature and salinity were carred out on a subarctic beach under varying water temperature conditions during summer and fall.

Water temperature during summer varied from 9°C to 17°C, while temperature ranged from −°C to °C during the fall Cited by: 3.

Buscombe, D., Rubin, D. M., and Warrick, J. A., An automated and 'universal' method for measuring mean grain size from a digital image of sediment. 9th. shelf (40 - 60 m) sediment movement is dominated by the Agulhas Current, with significant sediment dunes File Size: 5MB.

Full text of "Interaction of waves and currents" See other formats. Scientists and technical staff within the USGS Coastal and Marine Geology Program study coastal and ocean resources from shorelines and estuaries to the continental shelf and deep sea, providing expertise, tools, products, and data that address and inform a broad array of resource challenges facing our Nation.

This banner text can have markup. web; books; video; audio; software; images; Toggle navigation. During the onshore phase, sand is eroded from the wave-dominated nearshore zone and transported down current, and in some cases off the edge of the shelf, through submarine canyons and into deeper water (Ramsay, ).

The nearshore sand prism also migrates in response to the fluctuations of the current. rivers by continent, also shows that Asia has a very large drainage area of 10 million km 2 and that its annual sediment yield is almost 10 6 kg which is, by far, greater than any other continent.

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This book focuses on the phenomenon of sediment erosion and resuspension in the Yellow River delta, China, which is a vital issue involved in understanding the sediment transport processes in estuarine and coastal environments, and how these contribute to the nature and distribution of geohazards in the subaqueous Yellow River delta and Bohai Sea.

Design: Zoeck nv Cover image: Diver surveying Pavlopetri Early Bronze Age site (Credit: J. Henderson) European Marine Board The Marine Board provides a pan-European platform for i. The Finnish Environment Institute SYKE has published an assessment of the Gulf of Finland, compiling the research results of over a hundred Finnish, Russian and.

Flow solutions with non-vanishing far-field velocity are provided for any set of azimuthal wavenumbers m and arbitrary number n of vorticity shells. For azimuthal wavenumbers mD0 and mD1, the far-field velocity is a rigid motion and unsteady flow solutions with vanishing far-field velocity are obtained by means of a time-dependent change of.

HYDRODYNAMICS AND SEDIMENTATION IN WAVE- DOMINATED COASTAL ENVIRONMENTS Edited by B. GREENWOOD and R.A. DAVIS, Jr. Departments of Geography and Geology, Scarborough College, University of Toronto, Scarborough, Ont.

M1 C 1A4 (Canada) Department of Geology, University of South Florida, Tampa, FL (U.S.A.). High Resolution Morphodynamics and Sedimentary Evolution of Estuaries Edited by Duncan M. FitzGerald Boston University, MA, U.S.A.

and Jasper Knight University of Exeter, UK A C.I.P. Catalogue record for this book is available from the Library. On the basis of bathymetry, bottom sediment properties, and geophysical characteristics, five major physiographic zones are recognized: nearshore basins, shelf valleys, outer basins, rocky zones, and nearshore ramps.

River mouth morphodynamics - Examples from small, mountainous rivers (Invited) NASA Astrophysics Data System (ADS) Warrick, J.

Small, high-sediment yield rivers are. No category Abstract Book - International Association for Great Lakes Research. In support of this, we infer order 20 cm s-1 near-bottom current velocities in the canyon and observe high concentrations of suspended particulate matter.

The glider observations are also used to estimate a 1 °C temperature range and 12 μmol kg-1 dissolved oxygen concentration range, experienced twice a day by organisms on the canyon walls.

07 Goodbred and Saito Tide Dominated Deltas - Free download as PDF File .pdf), Text File .txt) or read online for free. A glossary of geologic terms is provided coastal geology and a discussion of data sources and in Appendix B.

study methods applicable to coastal geological field stud-ies. “Coastal geology” is defined as the science of land- Background forms, structures, rocks, and sediments with particular emphasis on the coastal zone.

Material in 5/5(1). Results from Deep Western Boundary Current observations at the exit of the Labrador Sea (S) Eugene B. Colbourne, K.F. Drinkwater, H. Loeng and S. Sundby Ocean climate variability in the North Atlantic: the importance of large-scale atmospheric forcing (S) 4 Effects of Climate Change on the World’s Oceans Cesar M.

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The sandstones of Upper Devonian section were deposited in a shoreface or nearshore environment with higher depositional energies, higher sediment input and more erosion which would produce a top surface that would not be planer.

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