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Zero bearing when calm
Posted: Sat 06 Feb 2010 10:05 am
by DaveNZ
I am curious about what Cumulus is showing and plotting on the graph now that it is completely calm here tonight - I do not have the option "use bearing zero when calm" enabled. Here's what is showing:
calm.jpg
So the last bearing the anemometer rested on was 56°, yet the average direction is showing 0°?
Re: Zero bearing when calm
Posted: Sat 06 Feb 2010 11:43 am
by steve
The 'use zero bearing when calm' option controls the 'instantaneous/current' bearing. The average bearing will always be zero when it's been calm for a period, as the calculation takes wind speed into account.
Re: Zero bearing when calm
Posted: Mon 08 Feb 2010 2:58 am
by DaveNZ
Ok thanks for explaining.
No worries, calm conditions are pretty boring anyway
