長岡における積雪観測資料(11)(1986.11〜1987.4)

概要

論文の詳細を見る
Observation of weather and measurements of snow depth on the ground, depth of newly fallen snow and density of the newly fallen snow were carried out in a period from November 1986 to April 1987 at an observation field of the institute, which is situated at lat. 37°25′, long. 138°53′E and at the height of 97m above sea level. The observation and measurements were made daily at 9 : 00 a.m. coinciding with the official meteorological observation time. The snow depth was measured with a snow stake and the depth of newly fallen snow by the snow boad method. The density measurement was made by using the following technique : a cake of snow deposited on the snow boad was cut vertically with a plastic cylinder of known section area(50cm^2)and was weighed. Water equivalent of snow was calculated as the product of the depth of newly fallen snow and the density. All numerical date are tabulated in the present report and figures showing snow depth on the ground, depth of newly fallen snow and cumulative depth of newly fallen snow are also included.
独立行政法人防災科学技術研究所の論文
1987-08-31