Oh, sorry, Hpeer- I was thinking of OpenCPN's tide tool in particular...The tides in O
just don't agree with the Tidebooks at all, while many other provinces and States I hope too are useable to give a general idea, though I haven't checked many that aren't locally interesting It just seems a systematic error, in this case. Not a drift of old data.
If I edit Newfoundlands HARMONIC file to -2:30 from -3:30 they work waay better not just today.(and yes, I know to add the hour to CHS tidebooks for DST...)
OPCN2.5 is wrong! CHS 1hr added OPCN EDITED
Time Ht Time Ht Time Ht
01:46 2.36m 00:29 2.40m 00:16 2.36m
07:16 0.48m 05:53 0.50m 05:46 0.48m
14:07 2.10m 12:59 2.10m 12:37 2.10m
19:22 0:50m 18:08 0.50m 17:52 0.50m
15 minutes is ok with me.I'd bet it isn't consistent as 15 minutes but I don't know that yet...year to year that is.
likewise St. John's and maybe all the Newf entries that are -03:30..Haven't checked em all.
It'd affect some Greenland
tides in OPCN and whichever others reference these Nfld Harmonics. I just thought I'd mention it. Maybe nobody in Newfoundland has OpenCPN
. Maybe it's a confusion here on the roost.