| Joined: | Mon Apr 2nd, 2012 |
| Location: | Carthew, Cornwall, United Kingdom |
| Posts: | 6874 |
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Robert,
The tidal rate of change is not linear.
See here.
https://en.m.wikipedia.org/wiki/Rule_of_twelfths
Therefore you need to maybe change rate to a slower frame for first and last two hours of the time but in the middle 8 hours you need a faster frame to show the change.
Correction of my post above after reading Chris' post.
High tide to high tide is 12 hours. High to low is only 6 hours.
Therefore for best capture you need low frame rate 0-1 hr after High tide (HW) as rate of change is low, then 2-5hrs after HW up frame rate to match increased change of tidal flow/rise. 5-6hrs after HW and one hour before low water change frame rate back down to similar to first hour after high water.
Chris are you familiar with the mud flats and creeks at Malden? Equally treacherous.
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