Journal of the Japanese Society of Snow and Ice
Online ISSN : 1883-6267
Print ISSN : 0373-1006
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Volume 19, Issue 6
Displaying 1-3 of 3 articles from this issue
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  • Number Density of Avalanche Protective Plantations
    HIDEO ARAI, YOSHINORI HAIBARA
    1957Volume 19Issue 6 Pages 161-168
    Published: 1957
    Released on J-STAGE: September 04, 2009
    DOIhttps://doi.org/10.5331/seppyo.19.161
    JOURNAL FREE ACCESS
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    In the period 1953 to 1957 near the Tsuchitaru Station on the Joetsu Line, field experiments on sloping snow-pressure using individual poles were carried out to obtain some data on the snow pressure falling on such poles, its vertical distribution and sphere of its influence, etc. The pressure was 1.5-2 tons under a snow depth 2.5 m or thereabout at the slope inclined at 3235°. The patterns of vertical distribution included B. D. P. and other types. The sphere of influence extended over 33-35 m2, it was 16-20 m2 in the case of a buried pole. Based on these data, a tentative calculation formula for number density and pole works of avalanche protective plantation has been worked out.
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  • On the Effect of Oze-Hara Moors upon the Runoff in Snow Cover Period
    NOBUHIKO ASADA
    1957Volume 19Issue 6 Pages 169-171
    Published: 1957
    Released on J-STAGE: September 04, 2009
    DOIhttps://doi.org/10.5331/seppyo.19.169
    JOURNAL FREE ACCESS
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    In this paper the author makes an attempt on qualitative explanation of particular runoff phenomenon in Oze-Hara during snow cover weighted period by Terzerghi's concept of clay expansion.
    About 1/7 of the area of Oze Hora basin (70km2) is occupied by the moor, which consists of deep loam with much field moisture equivalent, measured as 7080% at almost all points in Summer season.
    Increase and decrease of snow cover weight will bring the expansion and skrinrage of loams and change its field moisture equivalent, and consequently result in particular runoff from the basin.
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  • [title in Japanese]
    [in Japanese]
    1957Volume 19Issue 6 Pages 172-181
    Published: 1957
    Released on J-STAGE: September 04, 2009
    DOIhttps://doi.org/10.5331/seppyo.19.172
    JOURNAL FREE ACCESS
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    [in Japanese]
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