Effects of friction and surface tide angle of incidence on the coastal generation of internal tides
For the generation of internal waves by long surface waves, the normal-mode equations and solutions that satisfy the boundary conditions in a two-layer system are found analytically. Frictional effects decrease the amplitude of an internal wave over the shelf, changing it from a standing wave to a wave that progresses coastward and decreases the interference on the amplitude of the offshore progressive wave traveling seaward. Model studies, using a two-layer system of fresh water and saline water in a 9.9-m-long channel, gave favorable results relative to the theoretical results.
Weigand, J. G., H. G. Farmer, S. J. Prinsenberg, and Maurice Rattray. 1969. "Effects of friction and surface tide angle of incidence on the coastal generation of internal tides." Journal of Marine Research 27, (2). https://elischolar.library.yale.edu/journal_of_marine_research/1156