北陸地方における降水量計の固体降水捕捉率

書誌事項

タイトル別名
  • Catch ratios of gauges for solid precipitation in Hokuriku region.
  • ホクリク チホウ ニ オケル コウスイリョウケイ ノ コタイ コウスイ ホソク

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抄録

Catch ratios of three gauges (RT-1, RT-3 and RT-4) which have been conventionally used in Japan were evaluated for solid precipitation in the Hokuriku region over two winters. The true precipitation was determined according to the recommendations of WMO International Organizing Committee for the Intercomparison. Catch ratios decreased with increasing wind speed and were about 60% at the speed of 4ms-1. The gauge RT-4 gave the best catch ratios, then followed RT-1 and RT-3. Snow adhering on the reference gauge (Double Fence Intercomparison Reference) was sometimes observed. It seems that the recommended method by the committee is not necessarily suited to the precipitation measurement in the Hokuriku region where heavy and wet snowfalls take place.

収録刊行物

  • 雪氷

    雪氷 60 (3), 225-231, 1998

    公益社団法人 日本雪氷学会

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