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Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024
Cumulus MX V4 beta test release 4.0.0 (build 4021) - 04 May 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
Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024
Cumulus MX V4 beta test release 4.0.0 (build 4021) - 04 May 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
Sunshine hours
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- Posts: 38
- Joined: Mon 29 Aug 2016 6:40 am
- Weather Station: AE WS3803
- Operating System: Windows 10
Sunshine hours
What exactly are the sunshine hours supposed to represent? As it's 8.35 am clear blue skys and I am getting zero hours?
- steve
- Cumulus Author
- Posts: 26701
- Joined: Mon 02 Jun 2008 6:49 pm
- Weather Station: None
- Operating System: None
- Location: Vienne, France
- Contact:
Re: Sunshine hours
Cumulus has no idea whether the sun is actually shining, it uses the 'light' reading from the station to make a best guess, based on where you are, the date, and the time of day. You may need to 'tweak' the solar settings - see the help for the station settings screen. There are also a number of threads about this on the forum, here's one which may help, for example: https://cumulus.hosiene.co.uk/viewtopic.php?f=13&t=14747
Note that you need to have provided Cumulus with your correct co-ordinates for this to work at all.
Note that you need to have provided Cumulus with your correct co-ordinates for this to work at all.
Steve
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- Posts: 38
- Joined: Mon 29 Aug 2016 6:40 am
- Weather Station: AE WS3803
- Operating System: Windows 10
Re: Sunshine hours
So I need to tweak the settings so when the sun goes behind a cloud it stops recording as sunshine hours? Or is this trying to record from when the sun rises to when the sun sets?
- steve
- Cumulus Author
- Posts: 26701
- Joined: Mon 02 Jun 2008 6:49 pm
- Weather Station: None
- Operating System: None
- Location: Vienne, France
- Contact:
Re: Sunshine hours
Once a minute, it attempts to determine whether the sun is shining. If it is, it adds a minute to the total for today. You can use the yellow sun indicator on the main screen to determine whether Cumulus currently thinks the sun is shining, and compare it with reality. Note that there will be a lag, as the station only updates its light reading once a minute (I think).
Steve
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- Posts: 38
- Joined: Mon 29 Aug 2016 6:40 am
- Weather Station: AE WS3803
- Operating System: Windows 10
Re: Sunshine hours
So it's a fine balance, I presume were not trying to record actual sunshine on the station,
- PaulMy
- Posts: 3866
- Joined: Sun 28 Sep 2008 11:54 pm
- Weather Station: Davis VP2 Plus 24-Hour FARS
- Operating System: Windows8 and Windows10
- Location: Komoka, ON Canada
- Contact:
Re: Sunshine hours
Unless you use a Blake-Larsem Sunrecorder station http://www.komokaweather.com/weather/su ... ay_v1.htmlI presume were not trying to record actual sunshine on the station,
Enjoy,
Paul
VP2+
C1 www.komokaweather.com/komokaweather-ca
MX https://komokaweather.com/cumulusmx/index.htm /index.html /index.php
MX https://komokaweather.com/cumulusmxwll/index.htm /index.html /index.php
MX https:// komokaweather.com/cumulusmx4/index.htm
C1 www.komokaweather.com/komokaweather-ca
MX https://komokaweather.com/cumulusmx/index.htm /index.html /index.php
MX https://komokaweather.com/cumulusmxwll/index.htm /index.html /index.php
MX https:// komokaweather.com/cumulusmx4/index.htm
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- Posts: 1125
- Joined: Sat 26 Feb 2011 1:58 pm
- Weather Station: Fine Offset 1080/1 & 3080
- Operating System: Windows XP SP3
- Location: SE London
Re: Sunshine hours
Hi,
Cheers, Alan.
Well Yes, provided that the sun is able to shine directly onto the sensor (it's the small white dome inside the Solar Pod). But this may create major issues with the accuracy of the External Temperature, etc.. (due to the poor "Sun Screen" over the T/H sensor/transmitter). Moving the Pod (or the T/H transmitter) to a more favourable position, by extending the cable is possible, but not easy.imballinger wrote:.... I presume we're not trying to record actual sunshine on the station,
Cheers, Alan.
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- Posts: 20
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- Weather Station: WMR100N
- Operating System: Win2012R2
- Location: Norway
- Contact:
Re: Sunshine hours
Is there any way I can use the UV Index to calculate sun hours? If UV index is above 0 then count that the Sun is shining?
Where there's pleasure... there's always some pain!
-Snicker-
-Snicker-
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- Posts: 1125
- Joined: Sat 26 Feb 2011 1:58 pm
- Weather Station: Fine Offset 1080/1 & 3080
- Operating System: Windows XP SP3
- Location: SE London
Re: Sunshine hours
That's very unlikely to give a useful value. In summer, the UV Index can be well above zero, even under cloudy skies (and resolved only as an integer).Snicker wrote: If UV index is above 0 then count that the Sun is shining?
Estimation of "The Sun is Shining" can be quite difficult (particularly between Summer and Winter and near sunrise/sunset) even with quite sophisticated hardware and software. This thread is currently up to 429 posts,
Cheers, Alan.