Key points are not available for this paper at this time.
Prior to 1950, studies of estuaries were primarily observational. Rhodes ( 1950), for instance, described velocities and salinities in several estuaries along the eastern coast of the United States. Stommel partially stratified estuaries, in which there is a significant vertical-density gradient and vertical mixing is inhibited;
Hugo B. Fischer (Thu,) studied this question.