I'm sorry Thom I don't follow your thought about RMS. How would
geometric mean be related to the time and size of current flow? If the
tide took twice as long to rise and fall, the RMS would be the same but
the actual current would be smaller would it not?

Cheers


Thom Stewart wrote:

Nav,

Why wouldn't you use a RMS relationship if it close to a sine wave?

Ole Thom