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PROCEDURE FOR REDUCTION FLOOD WAVES ARISING FROM THAWING IN EARLY SPRING AND DANGER OF AVALANCHE IN MOUNTAINSIDE
PROCEDURE FOR REDUCTION FLOOD WAVES ARISING FROM THAWING IN EARLY SPRING AND DANGER OF AVALANCHE IN MOUNTAINSIDE
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机译：减少早春融化和山崩雪崩引起的洪水波的程序
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摘要
A covering layer of light absorbing coal-dust and/or fertiliser is provided by aerial spraying to snow covered appropriately inclined southern slopes leading to river catchment areas. This is an active protecting measure, that causes an earlier onset of the first river flood-wave, as the spring snow melts. This favourably lowers the height of culminating water-levels during extensive flooding. This method may be used as a preventive measure during exceptional meteorological conditions, such as large accumulations of snow; belated thaw. The method may be also used to influence development of avalanches when snow-cover thicknesses reach critical values on mountain slopes. Thus, under constant monitoring and control, snowbanks prone to avalanche formation may gradually be broken down.
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