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2/02/2017 2:18 pm  #1


Extend current in time

Nick, one for you.  Wind and pressure forecasts are now extending in time.  Current forecasts are not.  So to run an early optimal routing, I tick "Extend current in time".
But how does Expedition represent that time extension?  Some currents follow a cycle, 12 or 24 hours, in which case a cyclical extension would work, but more than a few follow a more random pattern.
How does it work?

 

2/02/2017 2:47 pm  #2


Re: Extend current in time

It just assumes the last time field is valid for ever.

​So if you have currents for midday today, they would also be used for Hobart 2023,

 

2/02/2017 2:49 pm  #3


Re: Extend current in time

OK, constant value.  Could one impose a cyclical pattern on the extension?  Just an idea!

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