Collapse of snow patch at the Hakuba Daisekkei of the northern Japanese Alps.

Chiyuki Narama; Ryoji Yoshimura; Hitomi Hata

Presentation information

[J] Oral

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS15] Mountain Science

Sun. May 22, 2022 9:00 AM - 10:30 AM 201B (International Conference Hall, Makuhari Messe)

convener:Yoshihiko Kariya(Department of Environmental Geography, Senshu University), convener:Akihiko SASAKI(Department of Geography and Environmental Studies, Kokushikan University), Chiyuki Narama(Niigata University, Program of Field Research in the Environmental Sciences), convener:Asaka Konno(Tokoha University), Chairperson:Akihiko SASAKI(Department of Geography and Environmental Studies, Kokushikan University), Yoshihiko Kariya(Department of Environmental Geography, Senshu University), Chiyuki Narama(Niigata University, Program of Field Research in the Environmental Sciences)

9:30 AM - 9:45 AM

[MIS15-03] Collapse of snow patch at the Hakuba Daisekkei of the northern Japanese Alps.

*Chiyuki Narama¹, Ryoji Yoshimura², Hitomi Hata^2,3 (1.Niigata University, Program of Field Research in the Environmental Sciences, 2.Niigata University, Graduate School of Science and Technology, 3.ESRI Japan)

Keywords:Collapse of snow patch, Hakuba Daisekkei, Ice tunnel, GPR, UAV

The mountain trail of the Hakuba Daisekkei in the nothern Japanese Alps was closed due to several collapses of the snow patch, because the winter periods in 2015/2016 and 2019/2020 were light snow season. In the Hakuba Daisekkei, three accidents have been caused by collapse of snow patch. To know the characteristics of collapse of snow patch, we investigated the position of ice tunnel, the place of collapse, and the phenomenon before collapse.