If S_i is the average salt content of the incoming seawater and S_o is the average salt content of the exiting surface water in an estuary, the fresh water in the exiting mixed water is ________.

Question

Quizplus · Accepted Answer

The difference between the incoming and exiting salt content represents the salt content that is removed in the estuary. Dividing this by the incoming salt content gives the fraction of incoming water that is fresh (has had salt removed), which is equal to the fraction of outgoing water that is fresh. Therefore, the fresh water in the exiting mixed water is (S_i - S_o)/S_i.

If Si Is the Average Salt Content of the Incoming

If S_i Is the Average Salt Content of the Incoming