The thickness and flows of an ice mass of the Kakunezato perennial snow patch, Mt. Kashimayari, the northern Japanese Alps

Kotaro FUKUI; Hajime IIDA; Research team of the Kakunezato perennial snow patch

Presentation information

Oral

Symbol M (Multidisciplinary and Interdisciplinary) » M-GI General Geosciences, Information Geosciences & Simulations

[M-GI20] Environmental changes in mountainous area

Tue. May 24, 2016 3:30 PM - 5:00 PM 301A (3F)

Convener:*Keisuke Suzuki(Department of Environmental Sciences, Faculty of Science, Shinshu University), Yoshihiko Kariya(Department of Environmental Geography, Senshu University), Akihiko SASAKI(Faculty of Science, Shinshu University), Chair:Keisuke Suzuki(Department of Environmental Sciences, Faculty of Science, Shinshu University)

4:45 PM - 5:00 PM

[MGI20-06] The thickness and flows of an ice mass of the Kakunezato perennial snow patch, Mt. Kashimayari, the northern Japanese Alps

★Invited papers

*Kotaro FUKUI¹, Hajime IIDA¹, Research team of the Kakunezato perennial snow patch (1.Tateyama Caldera Sabo Museum)

Keywords:glacier, perennial snow patch, flow, Japanese Alps

We describe field measurements (ground penetrating radar (GPR), geodetic survey and crevasse observation) to provide new information on the surface flow velocity, the ice thickness and the snow density profile of the Kakunezato perennial snow patch in Mt. Kashimayari (2889 m asl) in the northern Japanese Alps, central Japan.
We found the thick ice mass (over 40 m in thickness) in the central part of the Kakunezato perennial snow patch. The snow density is > 820kg/m³ below 1 m in depth from the surface in October 2015. The ice mass had flowed 12 - 17 cm / 24 days in the autumn of 2015. Thus, we regard the snow patch as small active glacier.