Welcome to the Cumulus Support forum.

Latest Cumulus MX release 3.28.5 (build 3282) - 23 February 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

Rain vs Evapotranspiration

Discussion of the Cumulusutils tool and website generator.

Moderator: HansR

User avatar
HansR
Posts: 5778
Joined: Sat 20 Oct 2012 6:53 am
Weather Station: GW1100 (WS80/WH40)
Operating System: Raspberry OS/Bullseye
Location: Wagenborgen (NL)
Contact:

Re: Rain vs Evapotranspiration

Post by HansR »

Dador wrote: Sat 25 Nov 2023 10:52 am - as you can see in the image, the Normal Yearly Rainfall text is under the layer. Can it be moved to the front?
Yes, another Z-plane but also another colour because they're both red and the line will disappear against the red area.
I will change both in next version.
Dador wrote: Sat 25 Nov 2023 10:52 am - in the CUstrings file I cannot find and translate the text Normal Yearly Rainfall, Daily Rain, Daliy EVT into my language.
Indeed. Will make all three translatable (actually: four, see below).
(note: Normal Yearly Rainfall (and also Station Yearly Rainfall) are amongs the oldest strings in CUtils and nobody ever noticed :lol:
Hans

https://meteo-wagenborgen.nl
CMX build 3278 ● Ecowitt GW1100/WS80/WH40 ● RPi 3B+ ● Raspberry OS 6.1.21 ● Mono 6.12.0.200
https://meteo-wagenborgen.nl/CMX4/NET8/ (beta)
CMX build 4003+ ● RPi 4B ● RPi OS 6.1.0-rpi7-rpi-v8 aarch64 ● dotnet 8.0.1
User avatar
HansR
Posts: 5778
Joined: Sat 20 Oct 2012 6:53 am
Weather Station: GW1100 (WS80/WH40)
Operating System: Raspberry OS/Bullseye
Location: Wagenborgen (NL)
Contact:

Re: Rain vs Evapotranspiration

Post by HansR »

Phil23 wrote: Fri 24 Nov 2023 9:14 pm Welcome to the North West Slopes & Plains......

EVT Vs Rain.jpg

Edit:- And Daily Rain.
And BTW, if you make your selection from 1 july it may look better because you then start in the winter period (I assume you start your rain period in july?).
Hans

https://meteo-wagenborgen.nl
CMX build 3278 ● Ecowitt GW1100/WS80/WH40 ● RPi 3B+ ● Raspberry OS 6.1.21 ● Mono 6.12.0.200
https://meteo-wagenborgen.nl/CMX4/NET8/ (beta)
CMX build 4003+ ● RPi 4B ● RPi OS 6.1.0-rpi7-rpi-v8 aarch64 ● dotnet 8.0.1
Phil23
Posts: 884
Joined: Sat 16 Jul 2016 11:59 pm
Weather Station: Davis VP2+ & GW1000 (Standalone)
Operating System: Win10 Pro / rPi Buster
Location: Australia

Re: Rain vs Evapotranspiration

Post by Phil23 »

Pretty sure Mine starts in January, as per what the BOM do here.
Always considered we should be opposite, but seems they record based on a calendar year.

Edit: Hard to see the recent days rain on the chart, given that the scale is up aroung the 1200mm mark & daily figures were in the 3 to 30mm Range.
(November 3 & onwards).

Not sure what sort of scaling along the average would make it look appropriate.
:Now: :Today/Yesterday:

Image

Main Station Davis VP2+ Running Via Win10 Pro.
Secondary Stations, Ecowitt HP2551/GW1000 Via rPi 3 & 4 Running Buster GUI.
:Local Inverell Ecowitt Station: :Remote Ashford Ecowitt Station:
User avatar
mcrossley
Posts: 12563
Joined: Thu 07 Jan 2010 9:44 pm
Weather Station: Davis VP2/WLL
Operating System: Bullseye Lite rPi
Location: Wilmslow, Cheshire, UK
Contact:

Re: Rain vs Evapotranspiration

Post by mcrossley »

I still think a simple delta plot as suggested by @freddie may be useful.
User avatar
HansR
Posts: 5778
Joined: Sat 20 Oct 2012 6:53 am
Weather Station: GW1100 (WS80/WH40)
Operating System: Raspberry OS/Bullseye
Location: Wagenborgen (NL)
Contact:

Re: Rain vs Evapotranspiration

Post by HansR »

mcrossley wrote: Mon 27 Nov 2023 8:57 pm I still think a simple delta plot as suggested by @freddie may be useful.
It is a deltaplot: arearange de facto is a delta plot. If the difference becomes negative I colour it red otherwise it becomes green.
Hans

https://meteo-wagenborgen.nl
CMX build 3278 ● Ecowitt GW1100/WS80/WH40 ● RPi 3B+ ● Raspberry OS 6.1.21 ● Mono 6.12.0.200
https://meteo-wagenborgen.nl/CMX4/NET8/ (beta)
CMX build 4003+ ● RPi 4B ● RPi OS 6.1.0-rpi7-rpi-v8 aarch64 ● dotnet 8.0.1
freddie
Posts: 2404
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: Rain vs Evapotranspiration

Post by freddie »

HansR wrote: Mon 27 Nov 2023 9:51 pm
mcrossley wrote: Mon 27 Nov 2023 8:57 pm I still think a simple delta plot as suggested by @freddie may be useful.
It is a deltaplot: arearange de facto is a delta plot. If the difference becomes negative I colour it red otherwise it becomes green.
It's a delta plot superimposed on a running total. This causes scale issues as totals grow. If you plot the pure delta about the origin line as I suggested then scale doesn't really come in to it - unless, of course, if the delta itself becomes large.
Freddie
Image
User avatar
HansR
Posts: 5778
Joined: Sat 20 Oct 2012 6:53 am
Weather Station: GW1100 (WS80/WH40)
Operating System: Raspberry OS/Bullseye
Location: Wagenborgen (NL)
Contact:

Re: Rain vs Evapotranspiration

Post by HansR »

freddie wrote: Mon 27 Nov 2023 10:00 pm It's a delta plot superimposed on a running total. This causes scale issues as totals grow. If you plot the pure delta about the origin line as I suggested then scale doesn't really come in to it - unless, of course, if the delta itself becomes large.
In reading charts scaling is of the essence. If you look at my second example - the area's coloured - you see that 2022 has a very small period of drought, 2020 a large one and the other two years none. I don't think plotting only the difference between rain and EVT would supply the info my way of charting does. The initial zoom level (1 year) is no coincidence: it shows a period over which the relation charted has its periodic importance and beside that: the Y-axis scale shows the relative importance of a possible dry period and will always more or less be the same.

So in short: you would like the opposite of what is intentional and what I see as important and has been deliberately avoided.

NOTE: in the first chart when starting the CUtils website it by default - it can be changed/removed by the user - shows the overview chart and you may have noticed that the pressure scale also deviates from what is normal in the CMX world: the scale has a memory for the max/min pressure records that station has ever seen and large barometer changes will show better and in context. As such with a longer period high pressure - e.g. 1020 hPa - the pressure line remains almost flat and hardly moves. CMX pressure will then start to have large amplitudes for small changes because the scale will fall back to e.g. 1020 +/- 5 hPa. I think my barometer is better ;)

So in short: I assume we can agree to differ of opinion on how to graph and how to scale.
Hans

https://meteo-wagenborgen.nl
CMX build 3278 ● Ecowitt GW1100/WS80/WH40 ● RPi 3B+ ● Raspberry OS 6.1.21 ● Mono 6.12.0.200
https://meteo-wagenborgen.nl/CMX4/NET8/ (beta)
CMX build 4003+ ● RPi 4B ● RPi OS 6.1.0-rpi7-rpi-v8 aarch64 ● dotnet 8.0.1
User avatar
HansR
Posts: 5778
Joined: Sat 20 Oct 2012 6:53 am
Weather Station: GW1100 (WS80/WH40)
Operating System: Raspberry OS/Bullseye
Location: Wagenborgen (NL)
Contact:

Re: Rain vs Evapotranspiration

Post by HansR »

@freddie, @mcrossley: As a result of your remarks I discussed the chart with a friend of mine, a fellow agricultural engineer, looking at all possibilities and together we concluded that my chart contains most information though the title should express that we are looking at cumulative rain and EVT. Having said that, this chart is likely the most discussed chart in CumulusUtils thanks to your remarks.

Thanks for that even if you disagree :D
Hans

https://meteo-wagenborgen.nl
CMX build 3278 ● Ecowitt GW1100/WS80/WH40 ● RPi 3B+ ● Raspberry OS 6.1.21 ● Mono 6.12.0.200
https://meteo-wagenborgen.nl/CMX4/NET8/ (beta)
CMX build 4003+ ● RPi 4B ● RPi OS 6.1.0-rpi7-rpi-v8 aarch64 ● dotnet 8.0.1
User avatar
mcrossley
Posts: 12563
Joined: Thu 07 Jan 2010 9:44 pm
Weather Station: Davis VP2/WLL
Operating System: Bullseye Lite rPi
Location: Wilmslow, Cheshire, UK
Contact:

Re: Rain vs Evapotranspiration

Post by mcrossley »

:lol:
Mapantz
Posts: 1772
Joined: Sat 17 Dec 2011 11:55 am
Weather Station: Davis Vantage Pro2
Operating System: Windows 11 x64
Location: Dorset - UK
Contact:

Re: Rain vs Evapotranspiration

Post by Mapantz »

Isn't an agricultural engineer just a fancy name for a mechanic?
Image
User avatar
HansR
Posts: 5778
Joined: Sat 20 Oct 2012 6:53 am
Weather Station: GW1100 (WS80/WH40)
Operating System: Raspberry OS/Bullseye
Location: Wagenborgen (NL)
Contact:

Re: Rain vs Evapotranspiration

Post by HansR »

Mapantz wrote: Mon 04 Dec 2023 10:46 pm Isn't an agricultural engineer just a fancy name for a mechanic?
No. An agricultural engineer thinks and designs agriculture which may involve machines. It also involves environmental, biological, plant structural (forest structure), entomological, climatological, meteorological etc... theory and practical design. The last decades DNA engineering also has become part of it. And no, an agricultural engineer is not supposed to know all about everything. Why? Because all those aspects attribute to food production which needs to keep up with exponential growth. A formidable and most likely impossible task. I might even add diplomacy as an agricultural field of study.
(This is the short answer)
Hans

https://meteo-wagenborgen.nl
CMX build 3278 ● Ecowitt GW1100/WS80/WH40 ● RPi 3B+ ● Raspberry OS 6.1.21 ● Mono 6.12.0.200
https://meteo-wagenborgen.nl/CMX4/NET8/ (beta)
CMX build 4003+ ● RPi 4B ● RPi OS 6.1.0-rpi7-rpi-v8 aarch64 ● dotnet 8.0.1
Post Reply