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Your search for Subject surface hoar layerresulted in 80 records.

Title: A Model to Determine Snow Surface Properties from Remote Measurements
Date: 1998
Authors: Hansueli Gubler
Description: The formation of weak layers before they are buried by new snow is crucial for the determination of the actual danger level from measurements by auto...
Object ID: issw-1998-035-048.pdf
Keywords: snow cover stability, snow surface, snow metamorphism
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Title: Depth Hoar Growth Rates Near A Rocky Outcrop
Date: 1998
Authors: E.M. Arons, S.C. Colbeck, J.M.N.T. Gray
Description: Observations of slab avalanche releases in alpine terrain have led to the hypothesis that rocky outcrops can influence the spatial distributions of te...
Object ID: issw-1998-093.pdf
Keywords: snow crystal growth, snow metamorphism, snow crystal
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Title: Experiments of Depth Hoar Formation Under Extremely Low Temperature
Date: 1998
Authors: Y.Kamata, A.Sato
Description: To investigate the growth of depth hoar crystals in a very cold region, an experiment was carried out for three days with temperature gradients of 200...
Object ID: issw-1998-254-259.pdf
Keywords: depth hoar, extremely low temperature, saturated water vapor concentration
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Title: The Temporal Variations of Near-Surface Faceted Crystals, Red Mountain Pass Corridor, Colorado
Date: 1998
Authors: Joe Stock, Kelly Elder, Karl Birkeland
Description: Avalanches are an important natural hazard. Slab avalanches initiate when a more cohesive layer lies over a less cohesive weak layer and the stresses ...
Object ID: issw-1998-265-269.pdf
Keywords: snow crystals, snow metamorphism, snow stability, avalanches
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Title: Snowpack Temperature and Decreases in Tensile Strength
Date: 1998
Authors: R. S. Rosso, D. Howlett, S. Calhoun
Description: In an effort to understand post-control and other natural avalanches that occur shortly after rain begins or the sun's rays start to warm the starting...
Object ID: issw-1998-508-513.pdf
Keywords: rain-on-snow, snow temperature, snow strength
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Title: Observations on Buried Surface Hoar - Persistent Failure Planes for Slab Avalanches in British Columbia, Canada
Date: 1996
Authors: Robert E. Davis, Bruce Jamieson, Jill Hughes, Colin Johnston
Description: To relate shear strength of buried surface hoar to metamorphic changes, prominent layers of surface hoar buried on 7 January 1995 and 28 December 1995...
Object ID: issw-1996-081-085.pdf
Keywords: surface hoar, avalanche, snow metamorphism, snow, strength, plane sections, microphotography
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Title: Experience with Stability Evaluation for a Surface Hoar Layer During Winter 1995-96 at Rogers Pass, British Columbia, Canada
Date: 1996
Authors: Jurg Schweizer, David Skjonsberg, Bruce McMahon
Description: The avalanche control section at Rogers Pass, British Columbia, Canada, is responsible for the avalanche safety within Glacier National Park. This inv...
Object ID: issw-1996-126-128.pdf
Keywords: snow crystals, snow strength, snow cover stability, avalanche forecasting, avalanche control
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Title: Surface Hoar Growing for Several Days
Date: 1996
Authors: Akihiro Hachikubo, Eizi Akitaya
Description: Surface hoar growing for several clear and humid days were observed. In the daytime, the air and the snow surface temperature increased and the relati...
Object ID: issw-1996-086-090.pdf
Keywords: surface hoar, weak layer, radiative cooling
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Title: Effect of Snow Temperatures on Skier Triggering of Dry Slab Avalanches
Date: 1996
Authors: D.M. McClung, Jurg Schweizer
Description: Field observations and experience show that snow temperatures can have a strong influence on dry snow slab instability. Experience shows that there ar...
Object ID: issw-1996-113-117.pdf
Keywords: dry snow, snow temperature, snow strength, slab avalanche, avalanche formation, skier triggering
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Title: Formation Rate of Surface Hoar Crystals Under Various Wind Velocities
Date: 1994
Authors: Akihiro Hachikubo, Takuya Fukuzawa, Eizi Akitaya
Description: Field observation of surface hoar crystals formation was carried out with measuring vapor condensation and meteorological elements: snow surface temp...
Object ID: issw-1994-132-137.pdf
Keywords: snow surface temperature, humidity, wind velocity, water vapor
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Title: Observations of Sun Crust Formation
Date: 1994
Authors: Toshihiro Ozeki, Eizi Akitaya, Keisuke Suzuki
Description: The mechanism of sun crust formation was investigated through field observations. During the observations, sun crust formed 12 times. The sun crust is...
Object ID: issw-1994-002-013.pdf
Keywords: heat, metamorphism, sun crust, ice particles
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Title: An Experimental Study on the Mechanical Behavior of a Depth Hoar Layer Under Shear Stress (Preliminary Report)
Date: 1992
Authors: Takuya Fukuzawa, Hideki Narita
Description: Simple shear experiments were carried out to understand the mechanical behavior of a depth hoar layer at various shear strain rates of 10-5 S-l to 10-...
Object ID: issw-1992-171-175.pdf
Keywords: slab, shear strength, surface hoar, weak layer, fracture
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Title: Micro- and Macro- Analyses of Stratigraphic Snow Profiles
Date: 1992
Authors: Walter Good, Georg Kriisi
Description: A method to prepare and investigate snow profiles is described and illustrated. Compared to the conventional and the dyed profiles, this new method ha...
Object ID: issw-1992-001-009.pdf
Keywords: snowpack, stratigraphy, surface hoar, microwaves,
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Title: The Friction of Snow Skis
Date: 1992
Authors: S.C. Colbeck
Description: Snow friction results from a mixture of processes. Usually the snow and ski surfaces are partially separated by melt water but, when too much water is...
Object ID: issw-1992-018-027.pdf
Keywords: friction, temperature, solar radiation
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Title: Measurement of Snow Hardness in Snow Pits Using a Resistometer
Date: 1992
Authors: Karl W. Birkeland
Description: Extended Abstract: Measurements of snow hardness in snow pits are commonly made using the hand test, whereby objects of different areas are pushed int...
Object ID: issw-1992-296-298.pdf
Keywords: resistometer, snowpits, hardness
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