在海岸和近海工程设计和施工中,往往需要解决从外海至近岸浅水区的风浪推算问题。 规范和板本·井岛将风区按水深分为若干段,用等效风要素的办法从远到近逐段推算风浪,直至预报点。Bretschneider考虑底摩擦等因素,取整个风区内海底的平均比降f/m来预报浅水区的风浪。这些方法,理论较完整,应用也较为广泛,对海底平坦的浅 In the design and construction of coastal and offshore engineering, it is often necessary to solve the problem of storm waves estimation from the open sea to the shallow water area off the coast. Norms and Plate Benjing Island will be divided into several sections of the water depth according to the water depth, with the method of equivalent wind elements from far to near section projections storm, until the forecast point. Bretschneider considered the bottom friction and other factors, taking the average seafloor in the entire wind area than the drop f / m to predict the wind and waves in shallow water. These methods, the theory is more complete, the application is also more extensive, shallow flat on the sea