Item: Shear Strength of Natural and Artificial Depth Hoar Layers
-
-
Title: Shear Strength of Natural and Artificial Depth Hoar Layers
Proceedings: Proceedings of the 2006 International Snow Science Workshop, Telluride, Colorado
Authors:
- Osamu Abe [ National Research Institute for Earth Science and Disaster Prevention, Japan ]
- Junrong Xu [ Xinjiang Institue of Ecology and Geography, Urumqui, China ]
- Jian Liu [ Xinjiang Institue of Communications, Urumqi, China ]
- Hiroyuki Hirashima [ National Research Institute for Earth Science and Disaster Prevention, Japan ]
- Shigeto Mochizuki [ National Research Institute for Earth Science and Disaster Prevention, Japan ]
- Satoru Yamaguchi [ National Research Institute for Earth Science and Disaster Prevention, Japan ]
- Takeshi Sato [ National Research Institute for Earth Science and Disaster Prevention, Japan ]
- Atsushi Sato [ National Research Institute for Earth Science and Disaster Prevention, Japan ]
Date: 2006
Abstract: Many data on shear strength and density of natural depth hoar layers were collected from Japan, west China and Alaska. Snow metamorphism experiments under temperature gradient conditions were conducted in a large cold room using two types of artificial snow that consist of dendrite or ice sphere particles, and shear strength and density for each layer were measured at the different stages. Eighty-three data on shear strength of natural and artificial snow layers were combined with two groups according to the grain shape, and were correlated with density by two types of equations for faceted and cup-shaped crystals. Based on the equations, the presented shear strength of cup-shaped crystals was smaller than that measured in North America with the same density, but the shear strength of faceted crystals increased quickly for snow density > 300 kg m-3.
Object ID: issw-2006-007-014.pdf
Language of Article: English
Presenter(s): Unknown
Keywords: shear strength, depth hoar, avalanche occurrence
Page Number(s): 7-14
Subjects: shear strength depth hoar layers avalanche occurrence
-