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Measurement of atmospheric and ground level precipitation
Author(s) -
Hamon W. Russell,
Cox Lloyd M.
Publication year - 1972
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr008i001p00272-01
Subject(s) - snow , precipitation , snowmelt , environmental science , shielded cable , atmospheric pressure , meteorology , wind speed , atmospheric sciences , geology , engineering , electrical engineering , geography
Actual atmospheric precipitation is calculated from dual measurements of an unshielded and a shielded gage. The mathematical relationship developed is independent of wind and the form or density of precipitation and contains a single coefficient. This coefficient was evaluated by using data from snow pillows and sunken gages and by using the calculations of actual precipitation obtained from the profile measurements of wind and catch in unshielded gages. Ground level precipitation and snow storage measurements are obtained from a surface precipitation gage consisting of a saucer‐shaped concrete platform 5 feet in diameter with a border and a central collector. Snow on the platform is hydraulically weighed, and snowmelt and rainfall are collected in a tank. Continuous measurements of these quantities are obtained by use of pressure bulbs and metal diaphragms that activate recorder pens on a mechanical strip chart drive.