土木学会論文集B1(水工学)
Online ISSN : 2185-467X
ISSN-L : 2185-467X
水工学論文集第57巻
9m2巨大雨量計の開発による地上雨量計の捕捉率の評価
山口 弘誠中北 英一野中 理伸
著者情報
ジャーナル フリー

2013 年 69 巻 4 号 p. I_307-I_312

詳細
抄録

Some rain-gauges produce a disturbance of the air currents which is called "Jevons effect", thereby a disturbance in the distribution of precipitation of such a kind that a part of the rain is carried past the rain-gauge, and the amount of variation from the true rainfall increases with increasing wind velocity. To evaluate the capture ratio when a strong wind occurs, the 9 m2 huge rain-gauge was invented that could reduce and neglect the Jevons effect. The total amount of rainfall for three months observed from the huge rain-gauge is about 5 % greater than that observed from the standard rain-gauge. 2-dimensional video disdrometer analysis showed that the capture ratio was low during the rainfall which had the small median diameter of the raindrop size distribution.

著者関連情報
© 2013 公益社団法人 土木学会
前の記事 次の記事
feedback
Top