2024-03-28T14:07:19Z
https://kitami-it.repo.nii.ac.jp/oai
oai:kitami-it.repo.nii.ac.jp:00007621
2022-12-13T02:21:01Z
1:86
寒地河川における河氷変動と水位変化に関する研究
A Study of a River Ice Fluctuation given to Water Level in an ice-covered River
A Study of a River Ice Fluctuation given to Water Level in an ice-covered River
吉川, 泰弘
渡邊, 康玄
早川, 博
平井, 康幸
open access
Ice Covered River
River Ice
Water Level
Observation
Mathematical Model
In an ice-covered river, it is important to clarify relation between river ice fluctuation and water level change. In this study, we carried out observation of water level, water temperature, air temperature, and photography from sky. Frozen area was computed from this photograph. This result showed clearly that river ice progresses towards up-stream from down-stream. Moreover, it was shown that formation of river ice is related to river width, river bed gradient, and water depth. One-dimensional mathematical model of river ice fluctuation which can calculate river flow and river ice was built. The result of this model clarified that, formation of river ice raises water level and dissolution of river ice drops water level.
公益社団法人土木学会
2010-06
jpn
journal article
VoR
https://kitami-it.repo.nii.ac.jp/records/7621
河川技術論文集
16
247
252
https://kitami-it.repo.nii.ac.jp/record/7621/files/No94.pdf
application/pdf
3.8 MB
2016-11-22