2024-03-28T12:11:38Z
https://kitami-it.repo.nii.ac.jp/oai
oai:kitami-it.repo.nii.ac.jp:00008053
2022-12-13T02:21:36Z
1:86
Study on the Estimation of Ice Floe Size Distribution in Cold-region Estuaries Found in a Tsunami Event
寒冷地河口域の津波発生時における氷板サイズ分布の推定に関する研究
Study on the Estimation of Ice Floe Size Distribution in Cold-region Estuaries Found in a Tsunami Event
阿部, 孝章
吉川, 泰弘
佐藤, 好茂
伊藤, 丹
津波遡上
結氷河川
氷板サイズ分布
冪乗則分布
In cold-region estuaries tsunamis can cause ice cover breakup, ice floe transport and consequent collisions between floes and riverine or coastal structures. The size distributions of ice floes can provide various kinds of information in defining design standards for structures against tsunami run-up. In this study sizes of ice floes after a tsunami event are measured using an image analysis technique and their size-distributions are investigated. A power-law dependence of the cumulative number of broken ice floes whose sizes larger than d was found; N(d) ~ d-α, which has been frequently observed in the geophysical and engineering contexts. Although there was an increasing deviation from the power law in some regions, the size distribution in four class-1 rivers and a lake was found to obey a power law with similar scaling exponents around 2.8.
journal article
公益社団法人 土木学会
2014
application/pdf
土木学会論文集B2(海岸工学)
2
70
I_1471
I_1475
https://kitami-it.repo.nii.ac.jp/record/8053/files/2014.11_寒冷地河口域の津波発生時における氷板サイズ分布の推定に関する研究.pdf
jpn
http://doi.org/10.2208/kaigan.70.I_1471
c 2014 公益社団法人 土木学会