Author Topic: Comparison of two stations  (Read 1855 times)

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Offline casacota

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Comparison of two stations
« on: February 08, 2020, 08:29:44 AM »
Hopefully is not a problem to show such a comparison here, since known brands are represented. If there is, please remove this thread!

Due to other reasons, I need to measure weather variables at two different heighs: 10 meters and 2 meters. This was done for about 10 years by two identical units. Now one from these units is failing and I replaced it by another system. Both systems and measured values can be compared here:
http://www.atmos.cat/perl?num=1580930566

Note that since a unit is new, the total rain amount was entered manually, so the coincidence is not a surprise. This may change...

Offline galfert

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Re: Comparison of two stations
« Reply #1 on: February 08, 2020, 12:53:58 PM »
Catalan domain in use. Interesting! At first I thought oh neat Spanish, I can read this. But then I thought, no this isn't Spanish. Then I thought Portuguese? Italian? No no. That was before I noticed the .cat domain.

Anyway, I noticed one station is a Vantage Vue, which has no solar radiation and no UV, so how is it you are displaying this data?

Secondly, two station brands side by side will almost always produce different data. Therefore moving them apart sort of negates any valid scientific value. In science you always try to change just one variable to retain a control. Here with two brands at different heights you've introduced two variables.

« Last Edit: February 08, 2020, 12:55:35 PM by galfert »
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Offline casacota

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Re: Comparison of two stations
« Reply #2 on: February 08, 2020, 01:10:05 PM »
Anyway, I noticed one station is a Vantage Vue, which has no solar radiation and no UV, so how is it you are displaying this data?
There are additional sensors (hobby-board) merged via software.

Secondly, two station brands side by side will almost always produce different data. Therefore moving them apart sort of negates any valid scientific value. In science you always try to change just one variable to retain a control. Here with two brands at different heights you've introduced two variables.

Yes, it's absolutely no scientific purpose here. The title is wrong. It is the comparison of data at 2 and 10 meters at te same place...

Offline casacota

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Re: Comparison of two stations
« Reply #3 on: February 26, 2020, 07:26:39 PM »

Offline Bushman

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Re: Comparison of two stations
« Reply #4 on: February 26, 2020, 10:40:58 PM »
Old proverb:  "Man with two watches never knows what time it is".
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