2 decimal places

cbnidk · **Posted:** Tue May 29, 2012 8:33 am

hi

Is it possible to get 1,08mm rain on the website, cumulus get 1,1mm rain
when dayly rain is 1,08mm
can I change to 2 decimal places after 1,xx and if possible how?

Claus

steve · **Posted:** Tue May 29, 2012 10:43 am

Fine Offset stations aren't capable of measuring rain to 2 decimal places, so Cumulus only displays 1. There is currently no way to change this.

cbnidk · **Posted:** Fri Jun 01, 2012 8:45 pm

steve wrote:

Fine Offset stations aren't capable of measuring rain to 2 decimal places, so Cumulus only displays 1. There is currently no way to change this.

I have cumulus to multiplied the o,3 mm from ws3080 with 1,2 and I got 0,36 pr. tip

and I kan see the 0,36mm in today rain

Claus

steve · **Posted:** Fri Jun 01, 2012 9:52 pm

You can't change the accuracy of your weather station just by adding a multiplier in Cumulus. The station can't measure rain to an accuracy of more than 1 decimal place; it would therefore be spurious accuracy for Cumulus to display two decimal places.

MickinMoulden · **Posted:** Fri Jun 01, 2012 11:32 pm

Hahahaha. You want to measure a tenth of a tenth of 1mm. That's funny. Go look at a manual raingauge and you'll be pressed to measure to to a tenth of 1mm, then try a further tenth. Good luck. Your splitting hairs here and it's really not worth the trouble. You've obviously done a calibration with a manual raingauge to come out with that multiplyer, so stop doubting it and go with it, otherwise wait for a decent amount of rain (not 1.08mm:) and recalibrate.
One way around is to to adjust the catchment area so that the calibration you make makes each tip an amount that only has 1 decimal place. ie 0.1mm, 0.2mm, 0.3mm. Then you will no longer have this issue.

MickinMoulden · **Posted:** Fri Jun 01, 2012 11:46 pm

Just looked at my website, main page (as you do), and there right up the top, is rain measurement......to two decimal places. Bahahahahaha.

But in my defence, it's the Weather Underground banner, and they are crap at converting mm to inch and back again

There you, if you want measurement to two decimal places, use the WU banner (it'll never be the measurement that you want though :mrgreen:

).

steve · **Posted:** Sat Jun 02, 2012 8:21 am

It's odd that they do that on the banner, because on the actual WU site they seem to use 1 dp.

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2 decimal places

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