Seiche 17
Seiche 17 : The occasional, rhythmic rise and fall of water in enclosed lagoons or bays. It is not Udal. The phenomenon was carefully observed on Lake Constance (Switzerland) in the 16th century. The oscillation of the water is the result of a disturbance that sets up "waves." The time period of these "waves" is described by Merian's formula, L= length of the body water, h = depth of body water, g = gravity of body water. The so-called wave will bounce back and forth until its energy is dissipated through friction. The seiche is dependent on the shape of the basin in which it occurs. Seiches may be generated by meteorological conditions, such as fast moving fronts, but they may be generated also by earthquakes. N.B. Refer to source to verify equation(s)
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