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Low Temperature readings

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kayjay
Posts: 20
Joined: Fri 08 May 2009 6:04 pm
Weather Station: WS2350

Low Temperature readings

Post by kayjay »

Every few months I get a single low reading of -30C. This wrecks my all time records, all I can do is overwrite it with a guess. I suspect that it will prove hard to locate the cause. A simple filter in software would really help with this - a test to ignore single readings where the temperature change has been improbable based on recent history. In every case where I have seen this the curve looks smooth, usually positive deg, then a singe -30 reading.

Thanks
kayjay
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steve
Cumulus Author
Posts: 26702
Joined: Mon 02 Jun 2008 6:49 pm
Weather Station: None
Operating System: None
Location: Vienne, France
Contact:

Re: Low Temperature readings

Post by steve »

kayjay wrote:A simple filter in software would really help with this - a test to ignore single readings where the temperature change has been improbable based on recent history.
The 'spike removal' setting in the Calibration settings?
Steve
kayjay
Posts: 20
Joined: Fri 08 May 2009 6:04 pm
Weather Station: WS2350

Re: Low Temperature readings

Post by kayjay »

Brill, perfect - I've been using this for years and never noticed it. When did this feature arrive?
kayjay
User avatar
steve
Cumulus Author
Posts: 26702
Joined: Mon 02 Jun 2008 6:49 pm
Weather Station: None
Operating System: None
Location: Vienne, France
Contact:

Re: Low Temperature readings

Post by steve »

kayjay wrote:When did this feature arrive?
In 1.9.1, on the calibration screen. But the temperature spike removal was available by editing the cumulus.ini file for some time before that.
Steve
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