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Latest Cumulus MX V4 release 4.4.2 (build 4085) - 12 March 2025
Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024
Legacy Cumulus 1 release 1.9.4 (build 1099) - 28 November 2014
(a patch is available for 1.9.4 build 1099 that extends the date range of drop-down menus to 2030)
Download the Software (Cumulus MX / Cumulus 1 and other related items) from the Wiki
If you are posting a new Topic about an error or if you need help PLEASE read this first viewtopic.php?p=164080#p164080
Zero bearing when calm
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DaveNZ
- Posts: 373
- Joined: Mon 07 Dec 2009 10:27 pm
- Weather Station: Davis VP2
- Operating System: Windows 7 64-bit
- Location: Howick, Auckland, New Zealand
- Contact:
Zero bearing when calm
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:
So the last bearing the anemometer rested on was 56°, yet the average direction is showing 0°?
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steve
- Cumulus Author
- Posts: 26672
- Joined: Mon 02 Jun 2008 6:49 pm
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Re: Zero bearing when calm
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.
Steve
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DaveNZ
- Posts: 373
- Joined: Mon 07 Dec 2009 10:27 pm
- Weather Station: Davis VP2
- Operating System: Windows 7 64-bit
- Location: Howick, Auckland, New Zealand
- Contact:
Re: Zero bearing when calm
Ok thanks for explaining.
No worries, calm conditions are pretty boring anyway
No worries, calm conditions are pretty boring anyway