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Collins, J.I. (author)
Over the past two or three years, Texas A &: M University has been operating facilities offshore of Panama City, Florida, to observe and collect environmental oceanographic data in the Gulf of Mexico. Waves are measured using Hytech resistance type wave staffs. The data is recorded more or less continuously in digital form on magnetic tape. The...
report 1965
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Inman, D.L. (author), Frautschy, J.D. (author)
Basic principles bearing on the nature of beaches and processes that act to modify them are considered in the light of present coastal development demands. A working hypothesis is developed that applies the principle of the conservation of mass to the mechanics of granular- fluid media. This hypothesis appears to have general application to sand...
report 1965
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McKnight, A.L. (author)
This paper traces the history of dredging from a primitive dredge invented by Leonardo da Vinci to the most modern and powerful equipment. Emphasis is given to the modern hopper dredge and recent development in connection with the use thereof. The possibility of application of hopper dredges to beach nourishment work is discussed with an account...
report 1965
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Berg, D.W. (author), Watts, G.M. (author)
A brief review of groin types and their respective functional designs is presented. Illustrative examples of conventional groins and some of the variations in the basic groin types, which have been constructed in the United States, are shown for comparative purposes.
report 1965
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Monkmeyer, P.L. (author), Kutzbach, J.E. (author)
The classical problem of describing the characteristics of deep water waves of finite amplitude is considered. The method of analysis initially follows that of Nekrasov, but differs in that a non-linear algebraic equation is derived. This equation is solved to the third, fifth and fifteenth order by means of a digital computer and the data is...
report 1965
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Wallace, N.R. (author)
This is a presentation of recent computer results from a previously published theory of the deformation of solitary waves on a sloping beach. No attempt will be made here to review or derive the pertinent equations, and only those geometrical aspects of the theory will be introduced which are necessary for interpretation of the results. The...
report 1965
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Miller, D.R. (author)
The design and construction of submarine pipelines involve s special investigations and studies to understand marine environmental conditions which affect the location, installation methods, and design techniques for undersea line s. The paper will discuss application of marine geology, oceanography and marine engineering studies to submarine...
report 1965
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Dunham, J.W. (author)
The construction of relatively short groins to trap fillets of sand along coastal reaches characterized by prevailing littoral transport has become a well-known practice in coastal engineering. Less common, but often equally important, is the use of long groins to form artificial headlands which trap sand more or less permanently in artificial...
report 1965
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Kidby, H.A. (author), Price, C.D. (author)
Construction methods utilized by the Portland District during its 80-year experience record of building rubblemound jetties are discus sed, along with design criteria that have been developed by the Corps of Engineers for required weight of individual stones in primary cover layer of rubblemound jetties. Results of the 1963 and 1964 continuing...
report 1965
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Cheney, W.O. (author), Richards, G.V. (author)
For many years the Pacific Gas and Electric Company has been measuring water temperatures in the ocean and other bodies of water in connection with the design of thermal power plants. This subject is timely because of the widespread interest being shown in the field. Since the beginning of this temperature measurement work, various methods and...
report 1965
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Bruun, P.M. (author)
By-passing by natural action is mentioned with special reference to Florida Inlets and to some other inlets in the United States and abroad. Natural by-passing at harbors on open shores is dealt with briefly. Present status of by-passing plant operations in Florida is reviewed. Inasmuch as it is evident that by-passing plants - partly because of...
report 1965
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Agerschou, H.A. (author), Edens, J.J. (author)
Drag and mass coefficients corresponding to Stokes' fifth - order theory have been determined from previously published wave and wave - force data. Comparisons between statistical distributions for fifth-order and corresponding first order coefficients have been made for varying wave steepnesses. For other existing wave data, from which the...
report 1965
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Lillevang, O.J. (author)
Wave and sand movement conditions must be right for a coastal groin to produce the beneficial effects it was built to achieve. Some groins produce no shoreline improvement; some groins prove harmful; some that act beneficially also cause harm elsewhere, and disputes follow. Design data are sparse, so experience and judgment become important...
report 1965
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Reid, R.O. (author), Vastano, A.C. (author)
A method is presented for the evaluation of an orthogonal coordinate system of particular use in the study of the diffraction of long gravity waves near islands of irregular shape. The problem involves a conformal mapping of the island onto a coordinate plane in which the island contour is a unit circle. The mapping relation is evaluated by an...
report 1965
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Johnson, J.W. (author)
An 80- mile reach of the central California coast, extending from the mouth of the Russian River in the north to Half Moon Bay in the south, was studied for the characteristics of sediment movement in the nearshore zone. From the results of a large number of beach and offshore sediment samples and other information, several techniques were...
report 1965
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Sayles, F.L. (author)
The distribution and dispersal patterns of sand-size particles has been investigated along a portion of the California coast south of San Francisco. The effectiveness of long-term, net littoral transport in the area has been evaluated through hydrodynamic considerations and through considerations of the dispersal patterns of sand. The...
report 1965
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Suurhof, J.G. (author), Jansen, P.P. (author)
Rede uitgesproken bij de installatie van de Technische Adviescommissie voor de Waterkeringen door de Minister van Verkeer en Waterstaat, J.G. Suurhoff, en het antwoord van de voorzitter van de TAW op deze rede, prof.ir. P.P. Jansen. De commissie werd ingesteld naar aanleiding van de overstromingen in Tuindorp-Oostzaan in 1960. De commissie is...
report 1965
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Breusers, H.N.C. (author)
report 1965
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Bijker, E.W. (author)
Due to the increased velocity vector in the case of current combined with waves the bottom shear stress in the direction of the current will increase. This increase has been derived and the derivation has been checked by measurements.
report 1965
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Neiheisel, J. (author)
The distribution patterns of bottom sediment in Brunswick Harbor and vicinity, Georgia, reflect the long-term hydrodynamic response and generally correlate with dynamic factors affecting edimentation. Certain diagnostic minerals reflect the source area and are used as "natural tracers" to delineate direction of sediment movement. Analysis of...
report 1965
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