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Understanding wind measurements

Discussion and questions about Cumulus weather station software version 1. This section is the main place to get help with Cumulus 1 software developed by Steve Loft that ceased development in November 2014.
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steve
Cumulus Author
Posts: 26672
Joined: Mon 02 Jun 2008 6:49 pm
Weather Station: None
Operating System: None
Location: Vienne, France
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Re: Understanding wind measurements

Post by steve »

broadstairs wrote:Steve that still assumes that your anemometer is not in any wind shadow which is highly unlikely in a domestic installation plus its all very well saying it at 10 metres but if that is on a roof and then its only 1 metre above the roof line that throws out the whole calculation anyway.
Yes, indeed. There are all kinds of things that can affect it. This is why some people don't believe in applying any scaling, and quoting the actual figures with an explanation of the siting of the anemometer.

Steve
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User avatar
steve
Cumulus Author
Posts: 26672
Joined: Mon 02 Jun 2008 6:49 pm
Weather Station: None
Operating System: None
Location: Vienne, France
Contact:
Contact steve

Re: Understanding wind measurements

Post by steve »

broadstairs wrote:Sorry forgot to say that the max gust today was 35.2mph at 03:18
Hmmm. So that suggests that the Cumulus calculation of 18 seems a bit low, given that peak gust.

Steve
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