Conventional precipitation measurement and monitoring are imperfect. Many of the problems are related to confounding weather variables such as wind and temperature, presenting a conundrum: how do you measure the weather if the measurement needs to be isolated from the weather? The solution is usually in the form of some sort of fencing such as an Alter shield. This paper investigates the use of the earth as a way of isolating the measurement from the weather. One advantage that I see for this approach is that, ultimately, it is the water that reaches the ground that we are really interested in. The conclusion of this paper is “the geolysimeter is capable of accurately measuring solid precipitation and can be used as an independent and representative reference of true precipitation.”

https://www.hydrol-earth-syst-sci.net/21/5263/2017/hess-21-5263-2017.pdf

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