Welcome to the Cumulus Support forum.

Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024

Cumulus MX V4 beta test release 4.0.0 (build 4018) - 28 March 2024

Legacy Cumulus 1 release v1.9.4 (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 Recorder

For discussion of DIY weather equipment - sensors, accessories, improvements to existing kit etc
apenwith
Posts: 418
Joined: Sun 26 Apr 2009 7:30 pm
Weather Station: w8681 BlakeLarsen Sun Recorder
Operating System: Windows 7 SP1
Location: West Cornwall UK
Contact:

Re: Sunshine Recorder

Post by apenwith »

Hi
One of the earlier versions had heaters and was aspirated to clear mist and we might use the same system in future but it would add quite a lot to the cost. Because of the curved and angled surface the slightest thaw would clear the present model - however frozen snow could be a problem - it's a cost/risk compromise. We haven't tested it but the light tranmission even through snow/rime might be enough to indicate sun or not.
I now have agreement to start the Met Office trial on August 5th and although the MO cannot endorse a product the comparison to official figures can be published as test results.
Regards
Alan
RayProudfoot
Posts: 3372
Joined: Wed 06 May 2009 6:29 pm
Weather Station: Davis VP2 with Daytime FARS
Operating System: Windows XP SP3
Location: Cheadle Hulme, Cheshire, England
Contact:

Re: Sunshine Recorder

Post by RayProudfoot »

Thanks Alan. I suppose the chances of you getting snow in Cormwall are quite small but your colleague in Denmark is almost certain to get snow. It will be interesting to know how things pan out.

Well done on getting cooperation with the MO. That's a feather in both your caps! :clap:
Cheers,
Ray, Cheshire.

Image
User avatar
PaulMy
Posts: 3775
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 Recorder

Post by PaulMy »

what happens when it snows?
We're still a few months away from snow :D but will certainly be able to have a good test here in Komoka, Canada
I now have agreement to start the Met Office trial on August 5th and although the MO cannot endorse a product the comparison to official figures can be published as test results.
I had enquired with Environment Canada for such current information and here is the response. Looks like before long I'll be the single-source for this data :o :
Hello Paul,
Thank you for sending your request to Environment Canada.
In answer to your question, bright sunshine data is available from our archive. Unfortunately bright sunshine observation is no longer a nationally-supported standard supplementary climate network in Environment Canada. It is still operated at some locations on a best-effort basis, but as the supplies run out, equipment require repair and observing programs change, the bright sunshine observations will be phased out. The reduction in this network has been ongoing since about 1999 as is reflected in the diminishing number of archived observations of this element. I have checked our database and there are only 3 stations in Ontario reporting bright sunshine data, Red Lake, Wiarton and Toronto.

Best regards,

xxx xxxxx
Meteorological Inquiry Specialist
MSC National Inquiry Response Team ISO 9001:2000 Environment Canada
Spécialiste en renseignements météorologiques - Équipe nationale de réponses aux demandes du public (ENRDP) ISO 9001:2000


-----Original Message-----
From: xxxxxxxx
Sent: Monday, June 20, 2011 10:17 PM
To: Env Canada Weather-Météo
Subject: Environment Canada Ser: F062153B6D


Sent : Tuesday, June 21, 2011 2:17 am UTC

The following information was submitted :
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
By : xxxxxxx
Region : Ontario
IP : xxxxxxxx
Server IP : http://www.weatheroffice.gc.ca
Referring Document : http://www.climate.weatheroffice.gc.ca/ ... h=6&Day=19
Browser Info : Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; GTB7.0; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; MS-RTC EA 2; .NET CLR 3.5.30729; .NET CLR 3.0.30729)

Contact Info:
~~~~~~~~~~~~~
Courrier électronique/E-mail :

No de tél./Tel. : xxxxxxxxx

Message :
~~~~~~~~~
Hi,
I have a personal weather station that uploads to Weather Underground, PWS, Ontario Weather Network, etc., as well as to my personal website http://www.komokaweather.com.

I have recently added a sunshine recorder as a test unit for Blake-Larson Sunrecorder (link to their site is http://www.sunrecorder.net). Does Environment Canada have daily current local sunshine records that can be accessed for comparison? I have taken the historical records 1971-2001 from the Ec website and entered those in my computer for comparison but would like to compare current actuals if that were possible. I am in Komoka so accross the City in the oposite direction to London Airport but airport data would certainly be helpful if there is no other nearby sunshine recorder. Thank you,
Paul
Davis Vantage Pro2+
C1 www.komokaweather.com/komokaweather-ca
MX www.komokaweather.com/cumulusmx/index.htm /index.html /index.php
MX www.komokaweather.com/cumulusmxwll/index.htm /index.html /index.php
MX www. komokaweather.com/cumulusmx4/index.htm

Image
apenwith
Posts: 418
Joined: Sun 26 Apr 2009 7:30 pm
Weather Station: w8681 BlakeLarsen Sun Recorder
Operating System: Windows 7 SP1
Location: West Cornwall UK
Contact:

Re: Sunshine Recorder

Post by apenwith »

Hi All

We now have a recorder almost up and running in New Zealand - see www.sunrecorder.net - and click on SR around the world.
Hopefully the Venezualan one will also not be too long now. It will be interesting to see how it performs at 10° N

My Met Office trial is due to start very soon but the wheels of bureaucracy grind very slowly and I have yet to get the final appointment to set it up.

Regards
Alan
apenwith
Posts: 418
Joined: Sun 26 Apr 2009 7:30 pm
Weather Station: w8681 BlakeLarsen Sun Recorder
Operating System: Windows 7 SP1
Location: West Cornwall UK
Contact:

Re: Sunshine Recorder

Post by apenwith »

Hi

By an odd coincidence I had an email from MO with the arrangements and the trial is now running.

Regards
Alan
User avatar
beteljuice
Posts: 3292
Joined: Tue 09 Dec 2008 1:37 pm
Weather Station: None !
Operating System: W10 - Threadripper 16core, etc
Location: Dudley, West Midlands, UK

Re: Sunshine Recorder

Post by beteljuice »

:clap: :clap: :clap:
Image
......................Imagine, what you will KNOW tomorrow !
Holger
Posts: 2
Joined: Wed 27 Jul 2011 10:18 pm
Weather Station: Davis VP2
Operating System: Windows XP
Location: Nantlle/North Wales

Re: Sunshine Recorder

Post by Holger »

Good luck with the trial, Alan - hope it'll rattle the MO's cage a bit!
Holger
User avatar
PaulMy
Posts: 3775
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 Recorder

Post by PaulMy »

Alan,
Is that something we can go to or see on an ongoing basis?

I now have a full month of data for July and we had some sun every day. All be it just a very small amount on the 28th. I had a computer glitch while I was not at home on the 21st and was not able to record for most of the day, but when I got back home salvaged recording a small amount of sun shine, and that was also the day we broke all of the all-time high records in Cumulus.

Paul
Davis Vantage Pro2+
C1 www.komokaweather.com/komokaweather-ca
MX www.komokaweather.com/cumulusmx/index.htm /index.html /index.php
MX www.komokaweather.com/cumulusmxwll/index.htm /index.html /index.php
MX www. komokaweather.com/cumulusmx4/index.htm

Image
apenwith
Posts: 418
Joined: Sun 26 Apr 2009 7:30 pm
Weather Station: w8681 BlakeLarsen Sun Recorder
Operating System: Windows 7 SP1
Location: West Cornwall UK
Contact:

Re: Sunshine Recorder

Post by apenwith »

Hi Paul
I'm not sure yet when the Met Office will provide me with the data - it may well be at the end of the trial. I have been comparing the daily figures published by the same site for a while now and there is some quite close agreement to my figures but as the site is 12 miles away there are differences. For the trial our recorder is less than a metre away from their Kipp & Zonen pyrheliometer so we can exactly measure like with like.
Interestingly - speaking to the meteorologist at the site - he was of the opinion that there is no totally satisfactory algorithm for converting W/M2 to sunshine hours.
We have an algorithm on trial for converting our measurements to W/M2 but the accuracy is probably only about +/- 10% at present.
Regards
Alan
User avatar
PaulMy
Posts: 3775
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 Recorder

Post by PaulMy »

Thanks Steve for adding the B/L option and showing Sunshine hours in latest beta :clap:

I notice this is logged in dayfile.txt, monLog.txt, and also in Realtime.txt as mentioned in Help. Unless I've missed it, any plans to add to Graph or Select-A-Graph and is this even possible? I did not notice it as a webtag, and extracting from those files to show on my website in some form is still beyond my ability.

Paul
Davis Vantage Pro2+
C1 www.komokaweather.com/komokaweather-ca
MX www.komokaweather.com/cumulusmx/index.htm /index.html /index.php
MX www.komokaweather.com/cumulusmxwll/index.htm /index.html /index.php
MX www. komokaweather.com/cumulusmx4/index.htm

Image
apenwith
Posts: 418
Joined: Sun 26 Apr 2009 7:30 pm
Weather Station: w8681 BlakeLarsen Sun Recorder
Operating System: Windows 7 SP1
Location: West Cornwall UK
Contact:

Re: Sunshine Recorder

Post by apenwith »

Hi

Three weeks into the Met Office trial and a chance to compare the B/L sunshine with figures from another website (not the official figures - I will be getting those from the MO later). So far I am seeing a difference of 309 minutes in around 17000 minutes of recording. That's less than 2% difference - it could, of course, be that differences are cancelling out over the period but at first sight it looks promising. It won't be till I get the official hour by hour figures we will know for sure.

Regards
Alan
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: Sunshine Recorder

Post by steve »

PaulMy wrote:Unless I've missed it, any plans to add to Graph or Select-A-Graph and is this even possible?
Yes, I'll probably get around to plotting sunshine hours at some point.
Steve
apenwith
Posts: 418
Joined: Sun 26 Apr 2009 7:30 pm
Weather Station: w8681 BlakeLarsen Sun Recorder
Operating System: Windows 7 SP1
Location: West Cornwall UK
Contact:

Re: Sunshine Recorder

Post by apenwith »

Hi
We now have the Met Office data. There are some hourly differences which may be due to the MO method of averaging their readings but the daily figures show a close agreement. We would expect the B-L recorder to be slightly higher on some days as it can detect the sun from the horizon. The graphs show our initial findings. The time scale is 30 days starting on 5th August against minutes.
Regards
Alan
You do not have the required permissions to view the files attached to this post.
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: Sunshine Recorder

Post by steve »

That looks impressive - you must be very pleased :clap:
Steve
RayProudfoot
Posts: 3372
Joined: Wed 06 May 2009 6:29 pm
Weather Station: Davis VP2 with Daytime FARS
Operating System: Windows XP SP3
Location: Cheadle Hulme, Cheshire, England
Contact:

Re: Sunshine Recorder

Post by RayProudfoot »

Congratulations to you both. That's a great achievement given your resources compared to the big boys. :clap:
Cheers,
Ray, Cheshire.

Image
Post Reply