Expedition Expedition Navigation Software

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8/01/2017 7:01 am  #1

Grib file source question

I recently was reviewing post race "stuff".  I ran a routing with "start now", and was surprised to get results since all the gribs were dated a minimum of five days prior.  How can this happen?

I cleared all files from the weather, settings, grib panel, thinking that would tell Exp that there was no grib data available.  The grib file folder contained all my recent history of downloads, but all were "old" compared to the race start time of now.  I clearly am missing something about how Exp creates an optimum route.

Can someone please direct me to documentation, or help with an explanation?

TIA, pjl


8/01/2017 7:23 am  #2

Re: Grib file source question

Do you have 'extend wind in time' checked in optimisation settings?


8/01/2017 10:56 am  #3

Re: Grib file source question

Excellent and perceptive evaluation.  That seems to have corrected the "problem".

My bad, thank you very much.

One more question.  Am I correct that the gribs in the weather, settings panel the only ones used by the optimization algorithm?


     Thread Starter

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