Nonlinear internal waves over the inclined bottom: Observations with the use of an acoustic profiler

摘要

Experimental data on propagation of solitary internal waves on the shelf of the Sea of Japan are presented and analyzed. The data are obtained by using an acoustic Doppler current profiler (ADCP). The process of propagation of the waves over the inclined bottom, up to their coming out to the coastal zone, is discussed for the case in which the pycnocline is closer to the surface than to the bottom. By using the approximation of an adiabatic invariant, it is shown that the height of the internal wave increases as it becomes closer to the overturning point. Qualitative agreement between the experimental data and the calculations is found.