When you paste this into the tcdata folder you will of course overwrite the existing worldwide harmonic file that is already there and every time you update OPCN that file will itself then be overwritten as well.
It would surely be far better to have a FULL WORLDWIDE harmonic file that includes all of the tides and currents.
Is there anyone working on producing this harmonic data or are the updates only available on a regional basis.
I personally would appreciate more tide and current
info for the South pacific
region and if there is such a file available then please advise me.