気象環境より見た融雪促進方法の検討 : 融雪遅延年の消雪技術の基礎

概要

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Using the meteorological data at Takada (37°06N 138°15E) from March to April in 1924-1959, some heat economical problems on the techniques for the promoting snow-melt in late thawing years were studied. Main results obtained are summarized as follows : <BR>Generally, the characteristics of heat balance at the snow surface during the thawing season indicate that the net radiation at the snow surface is larger than the total heat flux transferred from the air layer to the surface, namely, sensible and latent heat flux. Moreover, it has been found that the tendency mentioned above is obtained even during the latter thawing stage in late thawing years. However, from a consideration of the heat economical effect for the methods of promoting snow-melt in late thawing year, it seems reasonable to conclude that in the former stage of the thawing season the dusting of black powder on a snow surface is effective and in its latter stage ridging on a snow surface is effective.
社団法人日本雪氷学会の論文