長岡における積雪観測資料(9)(1984.11〜1985.4)

概要

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Observation of weather, snow depth, depth of snow fall and the density of new snow were carried out in a period from November 1984 to April 1985 at an observation field of the institute, which is situated at lat. 37°25′N, long. 138°53′E and at the height of 97 m above sea level. Obser ations were made daily at 9 : 00 a.m. coinciding with the official meteorological observation time. Snow depth was measured with a snow stake and the depth of snow fall by the snow boad method. The density measurement was made by the using following technique a cake of snow deposited on the snow boad was cut vertically with a plastic cylinder of known sectional area (50cm^2) and was weighed. Water equivalent of new snow was calculated from the data of depth and the density of new snow. All numerical data are tabulated in the present report, and the figures showing snow depth, depth of snow fall and cumulative depth of snow fall are also included.
独立行政法人防災科学技術研究所の論文
1985-06-07