**Segmentation of Water Body and Lakeshore Changes behind an Island Owing to Wind Waves behind an Island Owing to Wind Waves**

**Segmentation of Water Body and Lakeshore Changes** 

DOI: 10.5772/intechopen.72550

Takaaki Uda, Masumi Serizawa and Shiho Miyahara Takaaki Uda, Masumi Serizawa and Shiho Miyahara Additional information is available at the end of the chapter

Additional information is available at the end of the chapter

http://dx.doi.org/10.5772/intechopen.72550

#### **Abstract**

In a slender water body with a large aspect ratio, the angle of wind waves relative to the direction normal to the shoreline may exceed 45°, resulting in the emergence of cuspate forelands and the segmentation of the water body. The BG model was used to predict the segmentation of a rectangular water body by wind waves when the probability of occurrence of the wind direction is given by a circular or elliptic distribution, and the segmentation of a rectangular water body into a circular or elliptic lake was predicted in each case. The segmentation of a shallow water body with a triangular or crescent shape was also predicted together with the prediction of lakeshore changes when a rocky or sandy island exists in a circular lake.

**Keywords:** closed water body, wind waves, segmentation, lakeshore changes, BG model, cuspate foreland, island
