The water equivalent of snow cover during the winter season of 1957-1958 at the experimental field of the institute of Low Temperature Science, Hokkaido University, Sapporo, was observed by “Snow Balance”, a newly designed snow gage.
This new type snow gage was designed by Mr. S, Tamura, Weather Instrument Laboratory, Meteorological Research Institute.
It is consisted mainly of 8 triangular plate, adjunct each other to form a regular octagon and set flush on the ground, and a ring balance which supports the center of the octagon.
Each triangular plate can move at the center around the circumference of the octagon and thus the ring balance can measure the weight of the snow deposit on the plates.
The strain of the ring is magnified mechanically by 62 times and recorded on the drum which set 4 meters away from the center of the plates.
From the result of the analysis of the record and check with the snow sampling, this snow balance was considered fully practicable in the field use.
Simple theoretical consideration of this snow gage, and the interesting results related to this observation was explained.
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