@article{oai:kitami-it.repo.nii.ac.jp:02000047, author = {横山, 洋 and YOKOYAMA, Hiroshi and 吉川, 泰弘 and YOSHIKAWA, Yasuhiro and 伊波, 友生 and INAMI, Yu and 矢部, 浩規 and YABE, Hiroki}, issue = {2}, journal = {土木学会論文集B1(水工学)}, month = {}, note = {結氷河川において解氷期に発生するアイスジャム洪水は,河川の防災および維持管理上の懸案である.気候変動により,解氷期のアイスジャム発生状況が将来的に変化する可能性もある中,解氷期の河氷挙動把握が求められている.本研究では過去にアイスジャムが発生した結氷河川において,解氷過程の把握のため,氷温,水位,河氷画像の同時縦断観測を行った.その結果,氷温変化から解氷時期を解明するとともに,画像および水位観測から縦断的な解氷プロセスを把握できた.また実務利用を考慮した河氷厚変動簡易予測モデルを適用し,河氷厚変化から解氷進行現象を考察するとともに,解氷時期の予測に対するモデルの有用性を確認した., Ice jam floods under spring thaw is a problem for disaster prevention and maintenance of ice rivers. And it is required to understand the possibility of changing behavior of river ice caused by climate change. In this study, we conducted simultaneous longitudinal observation of ice temperature, water level and timelapse camera in order to understand the deicing process in an ice-covered river. As a result, it was possible to understand the deicing time from the ice temperature change, and grasp the longitudinal deicing process from the image and water level observation. Next, we applied a simplified prediction model of river ice thickness and discussed the deicing progress phenomenon from the river ice thickness change. We confirmed the usefulness of the model for future ice melting prediction.}, pages = {I_931--I_936}, title = {結氷河川における解氷期の河氷挙動と解氷の簡易予測手法の検討}, volume = {75}, year = {2019}, yomi = {ヨシカワ, ヤスヒロ} }