Wave Generated Ripples In Nearshore Sands

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Wave Generated Ripples In Nearshore Sands

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Author : Douglas Lamar Inman
language : en
Publisher:
Release Date : 1957

Wave Generated Ripples In Nearshore Sands written by Douglas Lamar Inman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1957 with Ocean waves categories.

Wave Generated Ripples In Nearshore Sands

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Author : Douglas Lamar Inman
language : en
Publisher:
Release Date : 1957

Wave Generated Ripples In Nearshore Sands written by Douglas Lamar Inman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1957 with Ocean waves categories.

Hydrodynamics And Sedimentation In Wave Dominated Coastal Environments

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Author :
language : en
Publisher: Elsevier
Release Date : 2011-09-22

Hydrodynamics And Sedimentation In Wave Dominated Coastal Environments written by and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-09-22 with Science categories.

Hydrodynamics and sedimentation in wave-dominated coastal environments

Wave Generated Bedforms In The Near Shore Sand Environment

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Author : Christopher D. Jetté
language : en
Publisher:
Release Date : 1997

Wave Generated Bedforms In The Near Shore Sand Environment written by Christopher D. Jetté and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Marine sediments categories.

To measure bedform geometry, a high-resolution sea-bed profiling system has been developed. The multiple transducer array (MTA) consists of an array of ultra-sonic (5MHz) transducers. The first prototype MTA described herein measures two-dimensional bedform profiles over a length of 45 cm. Under ideal conditions, the instrument is capable of 1 mm vertical resolution and 2 cm horizontal resolution. Laboratory and field tests of the MTA show the system's capability to accurately measure bedforms of known geometry and the ability to work under conditions with relatively high suspended sediment concentrations. Previous high-resolution profiling systems have either had moving parts, or have been unable to obtain the resolution of the system described herein. A multiple transducer array (MTA) was used to measure seabed geometry in a near-shore wave dominated environment in Duck, NC. The instruments were deployed using a sensor insertion system (SIS) installed on the research pier. Bedforms were measured under a variety of wave conditions and at several cross-shore locations. Two existing empirical ripple prediction models are compared to the measured field data. A new model is also empirically determined from these measurements. This new model describes vortex ripple geometry strictly in terms of sediment and flow conditions and does not require the calculation of shear stress. When all available field measurements of small scale ripples are compared to these predictive models, the new model has lower errors in predicting ripple height, steepness, and length than any of the other models.Both small scale ripples, with lengths of less than 40 cm, and large scale megaripples were measured during this experiment. Observations indicate that ripple flattening and reformation is a function of wave mobility number. Ripple reform ation was commonly observed to occur in less than one minute after flattening, and under certain conditions reformation was observed to occur within a few wave periods. Observations of megaripple migration indicate that cross-shore sediment transport due to ripple migration may be a significant process. Estimated cross-shore bedload transport rates are a good indicator of small scale ripple migration direction. Measurements indicate that megaripple lengths are proportional to near-bed orbital diameter, and that these types of bedforms can exist at small and large values of mobility number and orbital diameter.

Coastal Engineering 2002 Solving Coastal Conundrums Proceedings Of The 28th International Conference In 3 Vols

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Author : Smith Jane Mckee
language : en
Publisher: World Scientific
Release Date : 2003-03-14

Coastal Engineering 2002 Solving Coastal Conundrums Proceedings Of The 28th International Conference In 3 Vols written by Smith Jane Mckee and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-03-14 with Technology & Engineering categories.

This book contains more than 300 papers presented at the 28th International Conference on Coastal Engineering, held in Cardiff, Wales, in July 2002. It is divided into five parts: coastal waves; nearshore currents, swash, and long waves; coastal structures; sediment transport; and coastal morphology, beach nourishment, and coastal management. The papers cover a broad range of topics, including theory, numerical and physical modeling, field measurements, case studies, design, and management. Coastal Engineering 2002 provides engineers, scientists, and planners with state-of-the-art information on coastal engineering and coastal processes.

Miscellaneous Paper

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Author : Coastal Engineering Research Center (U.S.)
language : en
Publisher:
Release Date :

Miscellaneous Paper written by Coastal Engineering Research Center (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Coasts categories.

Oceanography

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Author : Defense Documentation Center (U.S.)
language : en
Publisher:
Release Date : 1963

Oceanography written by Defense Documentation Center (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with Chemical oceanography categories.

Technical Memorandum Beach Erosion Board

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Author : United States. Beach Erosion Board
language : en
Publisher:
Release Date : 1957

Technical Memorandum Beach Erosion Board written by United States. Beach Erosion Board and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1957 with Beach erosion categories.

Technical Memorandum Beach Erosion Board

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Author : Beach Erosion Board
language : en
Publisher:
Release Date : 1940

Technical Memorandum Beach Erosion Board written by Beach Erosion Board and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1940 with Beach erosion categories.

Technical Memorandum

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Author : United States. Beach Erosion Board
language : en
Publisher:
Release Date : 1940

Technical Memorandum written by United States. Beach Erosion Board and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1940 with Beach erosion categories.