長岡における積雪観測資料(4)(1979.11〜1980.4)

概要

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Observations of weather, total snow depth, new snow depth and the density of new snow were carried out in a period from November 1979 to April 1980 at an observation field of the institute, which is situated at lat. 37°25′N, long. 138°53′E and at the height of 97m above sea level. Observations were made daily at 9 : 00 a.m. coinciding with the official meteorological observation time. Total snow depth was measured with a snow stake and new snow depth by the snow board method. The density measurement was made by using the following technique : a cake of snow deposited on the snow board was cut vertically with a plastic cylinder of known section (area : 50cm^2) and weighed. Water equivalent of new snow was calculated from the data of the depth and the density of new snow. All numerical data are tabulated in the present report, and the figures showing of the changes of total snow depth, new snow depth and the changes of sum of daily new snow depth are also included.
独立行政法人防災科学技術研究所の論文
1980-09-30