I calculate tide times and heights for the fictional secondary port named Edenfield.
Edenfield's standard port is Hamilton Sound. So I need to use the tidal information and curve for Hamilton sound, but calculate the differences for Edenfield first and then I can use the HW time, height and LW height on the Hamilton Sound tidal curve.
0:00 Describe problem scenario
1:24 Get tide times and heights from Almanac
1:50 Note particular HW and LW times and heights for date
2:25 Show Secondary Port differences from Almanac
2:45 Draw scale for Standard and Secondary port HW time differences
3:45 Calculate Secondary port HW time
3:53 Draw scale and calculate HW Height for Secondary port
5:48 Create Tidal Curve using HW Time and Height and LW height
7:18 Convert UTC-1 to local time
7:58 Calculate a second example for another day
8:45 Work out HW Time difference
9:07 Work out HW Height difference
9:22 Work out LW Height difference
9:27 Mark up Tidal curve using calculated data
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