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Miscellaneous Debris => Weather sensors, design, analysis, discussion, home brew => Tech Corner => Rain Gauges => Topic started by: SLOweather on November 16, 2016, 02:51:45 PM
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Rain is forecast for the weekend here, so i put up a rain gauge shelf so I can do some testing.
(http://www.sloweather.com/blog/2016/161116rainlab.jpg)
There is a Rainwise, standalone Davis, and Texas Electronics on the shelf, and a Stratus, 3 RG11s, and VP2 Plus ISS on the post.
I still need to run cable and do programming, and figure out where to put the 8" Standard Gauge.
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I realize this post was quite a while ago but, I've been thinking of trying something similar. Do you have any findings to report from your rain lab?
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I realize this post was quite a while ago but, I've been thinking of trying something similar. Do you have any findings to report from your rain lab?
I suppose the main one is that I need to spend some time calibrating the tipping bucket gauges before I compare them any more. To that end, I've accumulated the equipment to build an automated calibrator (peristaltic chemical feed pump, calibration column, industrial controller, etc), and formulated a program to do the calibration runs.
I got a little wrapped up in using 2 of the Hydreon RG11s to estimate raindrop size, and also in elder care.
Lately, I've been measuring micro-local variations in rainfall with a Stratus gauge and 2 4" PVC Stratus clones, all within a foot or so of each other.
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One thing about using a programmable controller of some sort... You can track and log tips, time them, and then sort them in to one side or the other to make adjustments more accurate.