Standpipe storage precipitation gauge

Alternative definitions (1), class: vernacular (0)
Term: Standpipe storage precipitation gauge
Definition: A precipitation gauge comprising a tall pipe 30.5 cm (12 in.) in diameter designed especially to measure the water content of snow in remote mountainous areas for unattended operation; part of a SNOTEL site. The bottom contains a known amount of an oil-antifreeze mixture. The oil prevents evaporation and the antifreeze melts the snow. A pressure transducer converts the oil-antifreeze-water mixture into a calibrated water depth. Daily changes in depth provide seasonal and annual accumulations.
Created 2022.03.08
Last Modified 2023.03.27
Contributed by GCW Glossary
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