Coastal Engineering Significance. This is an experimental study on 

 large structures subject to wave and current action, showing that the 

 force on the structure due to the combination of waves and currents 

 differs from their separate effects. The paper presents numerous graphs 

 of transfer functions for various force components and numerous tables 

 of measurements. A study of these detailed results provides an 

 indication of the magnitudes of these forces. No other measurements of 

 this type have been published. 



33. LE BLOND, P.H. and MYSAK, L. A., Waves in the Ocean, Elsevier, 

 Amsterdam, The Netherlands, 1978. 



Keywords. Review, Waves. 



Discussion. This book gives an up-to-date account of those water 

 motions in the ocean which may be described in terms of waves in, or on, 

 an incompressible fluid. For the most part, these are waves involving 

 gravity (surface and internal waves) and rotation. The simpler, more 

 basic properties of the waves alone are considered first. Then the 

 influence of lateral boundaries, statistical methods, wave interactions, 

 wave-current interactions, wave generation and dissipation is treated. 

 Each type of wave is discussed in the different contexts. The book is 

 written with a view to bringing together some of the widespread litera- 

 ture on the subject. It is a research level book with numerous referen- 

 ces to research papers, and a bias toward more recent results. 



Coastal Engineering Significance. The book is valuable for reference on 

 a wide range of topics concerning surface waves and their interaction 

 with currents. It also sets these wave motions in the wider context of 

 all waves in the oceans. Similarly, some of the currents that influence 

 surface waves are simply the local water motion of waves (e.g., tides) on 

 much longer scales. 



34. LIGHTHILL, J., Waves in Fluids, Cambridge University Press, 

 Cambridge, England, 1978. 



Keywords. Radiation Stress; Theory. 



Discussion. The book gives a comprehensive introduction to wave motion 

 in fluids. It emphasizes the fundamental ideas of wave motion and wave 

 propagation. 



In particular, the theory of rays for general wave systems is given 

 in Section 4.4, followed by the effect of mean flows in Section 4.6, 

 which includes a detailed physical interpretation of radiation stress 

 (on page 329, the term radiation stress is not used, but the 

 corresponding momentum flux and the more general notion of Reynolds 

 stress are applied) and the introduction of wave action. An annotated 

 bibliography is a distinctive feature of the book. 



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