@article{oai:kitami-it.repo.nii.ac.jp:00008166,
 author = {橋場, 雅弘 and 吉川, 泰弘 and 伊藤, 丹 and 黒田, 保孝},
 issue = {4},
 journal = {土木学会論文集B1（水工学）},
 month = {},
 note = {Anchor ice is a phenomenon to accumulate of frazil ice on the river bed. This is formed due to the super cooling and
a shallow, turbulent section of the river. But, it is a poorly understood and little studied topic. Our study focuses on
elucidate the material cycle of freezing river. We had a continuous observation of air temperature, water temperature,
water level and all day shooting of anchor ice formation using IP-camera during an anchor ice presence-absence
cycles. From the result, we found the critical element of anchor ice presence-absence is under super cooling condition.
We attempted to analyze two-dimensional flow calculation and spatial distribution of photo image analysis of an
anchor ice. As a result, we found spatial distribution of anchor ice is proportional to the Froude number.
We analyzed the contained materials of an anchor ice. As a result, a lot of algae (Hydrurus foetidus and diatoms)
existed in the anchor ice. We showed the possibility that anchor ice affected the material cycle of freezing river.},
 pages = {I_1279--I_1284},
 title = {アンカーアイスの平面分布と含有物質に関する現地観測},
 volume = {70},
 year = {2014}
}