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Temperature spike needs correction

Discussion specific to Davis weather stations
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TwoTonTed
Posts: 40
Joined: Wed 26 Aug 2015 5:39 pm
Weather Station: Davis Vantage Vue
Operating System: Windows 11
Location: St Brides, Vale of Glamorgan

Temperature spike needs correction

Post by TwoTonTed »

please see the attached image anyone? Cumuls 1.9.4.

I've had a few instances where I've had to go back and edit data due to equipment failure but I cannot get rid of this spike when my Davis Vantage Vue somehow recorded -60 odd C on 11/9/16 at 7.00am in the morning.

The low temp in dayfile.txt is 9.8c for that day and low temp from Monthly records is 4.4c.

Can someone help where I can go and make a file edit to get rid of this erroneous spike?

Thanks
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mcrossley
Posts: 12694
Joined: Thu 07 Jan 2010 9:44 pm
Weather Station: Davis VP2/WLL
Operating System: Bullseye Lite rPi
Location: Wilmslow, Cheshire, UK
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Re: Temperature spike needs correction

Post by mcrossley »

You will need to edit the Nov16Log.txt file and find the line(s) with the errant temperature. Use a decent editor such as NotePad++ and make a copy of the file before you start ;)

PS: I was disappointed to see you weren't in Teddington!
freddie
Posts: 2434
Joined: Wed 08 Jun 2011 11:19 am
Weather Station: Davis Vantage Pro 2 + Ecowitt
Operating System: GNU/Linux Ubuntu 22.04 LXC
Location: Alcaston, Shropshire, UK
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Re: Temperature spike needs correction

Post by freddie »

TwoTonTed wrote:Can someone help where I can go and make a file edit to get rid of this erroneous spike?
You need to edit the file Sep16log.txt, with Cumulus switched off. You will need to find the entries for around 0700 on 11/09/2016 and edit the erroneous temperature records. The Wiki page is at http://wiki.sandaysoft.com/a/Monthly_lo ... a_problems. There are comprehensive instructions on editing the data files.
Freddie
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freddie
Posts: 2434
Joined: Wed 08 Jun 2011 11:19 am
Weather Station: Davis Vantage Pro 2 + Ecowitt
Operating System: GNU/Linux Ubuntu 22.04 LXC
Location: Alcaston, Shropshire, UK
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Re: Temperature spike needs correction

Post by freddie »

mcrossley wrote:You will need to edit the Nov16Log.txt file
I think it is the Sep16log.txt that needs editing.
Freddie
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TwoTonTed
Posts: 40
Joined: Wed 26 Aug 2015 5:39 pm
Weather Station: Davis Vantage Vue
Operating System: Windows 11
Location: St Brides, Vale of Glamorgan

Re: Temperature spike needs correction

Post by TwoTonTed »

thanks guys I'll give it a go and yes, I did once live in Teddington!
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mcrossley
Posts: 12694
Joined: Thu 07 Jan 2010 9:44 pm
Weather Station: Davis VP2/WLL
Operating System: Bullseye Lite rPi
Location: Wilmslow, Cheshire, UK
Contact:

Re: Temperature spike needs correction

Post by mcrossley »

freddie wrote:
mcrossley wrote:You will need to edit the Nov16Log.txt file
I think it is the Sep16log.txt that needs editing.
Doh! I've just come off a VM that is using US date formats :groan:
freddie
Posts: 2434
Joined: Wed 08 Jun 2011 11:19 am
Weather Station: Davis Vantage Pro 2 + Ecowitt
Operating System: GNU/Linux Ubuntu 22.04 LXC
Location: Alcaston, Shropshire, UK
Contact:

Re: Temperature spike needs correction

Post by freddie »

mcrossley wrote:
freddie wrote:
mcrossley wrote:You will need to edit the Nov16Log.txt file
I think it is the Sep16log.txt that needs editing.
Doh! I've just come off a VM that is using US date formats :groan:
Yeah I did think twice about what month it was - but looked at TwoTonTed's location and the temperature displayed on the graph and plumped for UK format / September :-)
Freddie
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TwoTonTed
Posts: 40
Joined: Wed 26 Aug 2015 5:39 pm
Weather Station: Davis Vantage Vue
Operating System: Windows 11
Location: St Brides, Vale of Glamorgan

Re: Temperature spike needs correction

Post by TwoTonTed »

that's great, it worked.

thanks for your help.
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