Maybe a graph tracking the relative difference in temp and dew point? Because we all know what happens when...water just come out of the air...[This is not an advertisement for Island Sky Water.]
Seriously, how come no weather stations indicate this value or alarm?
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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 4019) - 03 April 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
Graph Idea
- Toming
- Posts: 10
- Joined: Sat 02 Nov 2013 2:43 pm
- Weather Station: Lascosse ws-2310-11wtc
- Operating System: win7 ultimate
- Location: Baton Rouge LA
Graph Idea
I forgot/forget, remember?
Government should mandate with science, until the science colloquialises
Government should mandate with science, until the science colloquialises
- steve
- Cumulus Author
- Posts: 26701
- Joined: Mon 02 Jun 2008 6:49 pm
- Weather Station: None
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- Location: Vienne, France
- Contact:
Re: Graph Idea
Most/all of them supply relative humidity, from which the dew point temperature is/can be calculated. Does a graph of dew point depression (difference between dp and temp) not look very similar to an inverted relative humidity graph? High DPD implies low RH, and vice versa.
Steve
- Toming
- Posts: 10
- Joined: Sat 02 Nov 2013 2:43 pm
- Weather Station: Lascosse ws-2310-11wtc
- Operating System: win7 ultimate
- Location: Baton Rouge LA
Re: Graph Idea
I do not know. I was a air controller in the Navy and use to figure dew point for the helo pilots, it was integral.[with a wet bulb]
I guess the relative humidity would increase to 100% as the dew point approaches the ambient temperature. I was always under the impression that relative humidity was figured with rain.[which dew point is not directly related. edit=how does the relative humidity effect the dew point?[wet bulb]
I am trying to track the four corners of a triangle...thanks...bye now.
I guess the relative humidity would increase to 100% as the dew point approaches the ambient temperature. I was always under the impression that relative humidity was figured with rain.[which dew point is not directly related. edit=how does the relative humidity effect the dew point?[wet bulb]
I am trying to track the four corners of a triangle...thanks...bye now.
I forgot/forget, remember?
Government should mandate with science, until the science colloquialises
Government should mandate with science, until the science colloquialises
-
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- Joined: Mon 07 Dec 2009 10:27 pm
- Weather Station: Davis VP2
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- Contact:
Re: Graph Idea
Yep it does, although the fluctuations in dewpoint become greater as the humidity becomes lower (a logarithm relationship), so it is not an exact match to an inverted humidity plot.steve wrote:Most/all of them supply relative humidity, from which the dew point temperature is/can be calculated. Does a graph of dew point depression (difference between dp and temp) not look very similar to an inverted relative humidity graph? High DPD implies low RH, and vice versa.
- Toming
- Posts: 10
- Joined: Sat 02 Nov 2013 2:43 pm
- Weather Station: Lascosse ws-2310-11wtc
- Operating System: win7 ultimate
- Location: Baton Rouge LA
Re: Graph Idea
If I read right, the variance in precice dewpoint gets greater as the humidity increases? I think that to allow for the passage of water from air that variance would have to be small, precice/stable for a time..., so when the variance is high, it stays in the air....clouds... it rains instead? So periods of not having reaced dew point[effectively]could figure in to precipitation prediction?
how do I get the data from cumulus to LibreOffice?
how do I get the data from cumulus to LibreOffice?
I forgot/forget, remember?
Government should mandate with science, until the science colloquialises
Government should mandate with science, until the science colloquialises
- steve
- Cumulus Author
- Posts: 26701
- Joined: Mon 02 Jun 2008 6:49 pm
- Weather Station: None
- Operating System: None
- Location: Vienne, France
- Contact:
Re: Graph Idea
The log files are in CSV format; presumably LibreOffice, like Excel, can read those directly?Toming wrote:how do I get the data from cumulus to LibreOffice?
Steve
- Toming
- Posts: 10
- Joined: Sat 02 Nov 2013 2:43 pm
- Weather Station: Lascosse ws-2310-11wtc
- Operating System: win7 ultimate
- Location: Baton Rouge LA
Re: Graph Idea
thank you
I forgot/forget, remember?
Government should mandate with science, until the science colloquialises
Government should mandate with science, until the science colloquialises
-
- Posts: 1183
- Joined: Fri 27 Jul 2012 11:29 am
- Weather Station: Chas O, Maplin N96FY, N25FR
- Operating System: rPi 3B+ with Buster (full)
Re: Graph Idea
The donation suggested freeware software Libre Office (and Apache Open Office) can certainly read CSV files, when first opening such a file it displays a screen where you select one or more characters that are used for separating the fields and you see how that causes your data to be split by columns.
If you edit the file, and want it to be still accepted by Cumulus, then remember to use 'Save as...', next select 'Text CSV' as type and finally select 'Edit filter settings' before you click 'Save' becaue that will let you select the field separation character for the output file. If you find your saved file has the extension .csv, then you can safely rename that to .txt.
If you edit the file, and want it to be still accepted by Cumulus, then remember to use 'Save as...', next select 'Text CSV' as type and finally select 'Edit filter settings' before you click 'Save' becaue that will let you select the field separation character for the output file. If you find your saved file has the extension .csv, then you can safely rename that to .txt.
- Toming
- Posts: 10
- Joined: Sat 02 Nov 2013 2:43 pm
- Weather Station: Lascosse ws-2310-11wtc
- Operating System: win7 ultimate
- Location: Baton Rouge LA
Re: Graph Idea
Thanks, I found it, I remember when Open Office changed to Libre Office, seems to work a little easier to me. Definitely easier than Excel. In school I preferred Word Perfect . I only have a small amount of data right now, I will try to save some and combine with my EKM metering/ Cumulus/ Morningstar TS-45 in some time.
Did you know saving data is stressfull? I managed to imitate the performance of my Citibank Visa in school with Lotus 123...Gw basic, Packard bell 286, windows 3.1
thanks a bunch.
Did you know saving data is stressfull? I managed to imitate the performance of my Citibank Visa in school with Lotus 123...Gw basic, Packard bell 286, windows 3.1
thanks a bunch.
I forgot/forget, remember?
Government should mandate with science, until the science colloquialises
Government should mandate with science, until the science colloquialises