The breaker zone 
Between the curve defining the transition zone on the coast- 
ward side and the coast, non-linear effects are apparently dominant. 
From these photographs, Munk's Solitary Wave Theory [1949] may well 
be a first step in a study of this zone. This near shore zone is 
probably the location of the important beach erosion effects. In 
this paper, these effects as far as they can be treated by the methods 
used herein are covered in Plate LXX. In Plate LXX, only one point 
is emphasized. That point is that important non-linear effects 
cannot and must not be treated by the theories developed herein. 
Summary of the past chapters 
Methods and formulas which apply to storm generated ocean sur- 
face waves from the time they leave the edge of a storm at sea until 
they are just about to enter the zone where they break upon some coast 
have been presented in this chapter and in the past chapters. The 
procedures and techniques described apply realistically to waves as 
they aree They can discriminate between sea and swell. They can 
predict waves given data not currently available. They explain nearly 
all of the observed facts about ocean waves within the linearity ap- 
proximation. 
Two important problems have not been treated. They are the 
problem of the generation of waves and the problem of the breaking 
of waves in the breaker zone. Some general comments on wave gene- 
ration will be made in a later chapter, but breaking waves will not 
be discussed. 
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