I have a calibrated glass one and an electronic rain gauge. Neither is perfect, but I recorded a total of 48.00"
There are always other factors at work like wind and proximity to structures and vegetation.
Scott KD5FBA
Sent from my Verizon 4G LTE Droid
On Aug 30, 2017 12:24 PM, Jon “KF5TFJ” Noxon via BVARC <[email protected]> wrote:
The end all rain gauge: http://www.weather.gov/iwx/coop_8inchOn Aug 30, 2017, at 12:20 PM, Jon Livingston kb0mnm via BVARC <[email protected]> wrote:Hi John,The only problem with the funnel is that it complicates the math. The large aperature to smaller measuring helps keep some of the evaporation from being a factor.Since these are typically checked daily by the pros, it is more about saying that the method can get better resolution of fractions.I have never heard of a better method than the 5-gallon bucket ( not used by pros for the reason above )- but there may be one.It might also make calibration of the cylinder easier, with a well-measured and waterproof stick.If expense were not an issue, you could use a large clear-glass beaker and ignore the curved bottom. Then 'unwanted critters' could clearly be seen.You might consider putting the brick on either end of the handle of that pail, if you consider that it absorbs a little water.73 de KB0MNM- JonBTW- We *used* Davis anemometers for wind speed and direction. They work fine with new bearings replaced annually for precision. The direction can last for a few years.I have no financial interest in Davis, and this situation for my previous employer ( MnDOT/NWS/DHS ) may have changed.
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