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Your search for Subject stratigraphyresulted in 28 records.

Title: Drone-Based UWB Radar to Measure Snow Layering in Avalanche Starting Zones
Date: 2016-10-02
Authors: Rolf O. Rydeng Jenssen, Markus Eckerstorfer, Hannah Vickers, Kjell-Arild Høgda, Eirik Malnes, Svein K. Jacobsen
Description: Slab avalanches release due to failure in a weak snow layer. Determining the spatial distribution and depth of weak layers in avalanche starting zones...
Object ID: ISSW16_P1.15.pdf
Keywords: uwb radar, uav, snow stratigraphy, avalanche risk assessment, avatech
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Title: Comparison of ECT, RB, Threshold Sum and Relative Threshold Sum Approach to To Snowpack Instability Evaluation - New Results
Date: 2016-10-02
Authors: Igor Chiambretti, Fabiano Monti, Mauro Valt
Description: The Italian regional avalanche forecasting services (AINEVA) collect snowpack observations such as snowpack profiles or stability tests on a daily or ...
Object ID: ISSW16_P3.05.pdf
Keywords: rutschblock (rb), extended column test (ect), structural instability indices, threshold sum (tsa), relative threshold sum (rta)
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Title: Effects of Bark Beetle Attacks on Snowpack and Snow Avalanche Hazard
Date: 2016-10-02
Authors: Michaela Teich, Martin Schneebeli, Peter Bebi, Andrew D. Giunta, Curtis A. Gray, Michael J. Jenkins
Description: Unprecedented bark beetle outbreaks across western North America have resulted in the death of millions of trees, which profoundly affects snowpack in...
Object ID: ISSW16_P3.10.pdf
Keywords: subcanopy snow stratigraphy, avalanche protection forest, spruce beetle, snowmicropen
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Title: Snow Profile Visualisations to Highlight Structural Instability Conditions
Date: 2013-10-07
Authors: Fabiano Monti, Jürg Schweizer
Description: Interpreting snow profiles is a fairly subjective process, especially when snow stratigraphy was recorded without performing a stability test at the s...
Object ID: ISSW13_paper_P1-31.pdf
Keywords: snow stratigraphy, snow profile, snow stability evaluation
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Title: A Snow Stratigraphy Comparison with the Ramsonde and Thin-Blade Penetrometer
Date: 2013-10-07
Authors: Christopher DeVito, Andrea Tupy, Brandon Gonzales
Description: Variations in snow density and bond strength throughout a seasonal snow pack play a major role in the formation of avalanches. Various mechanisms and ...
Object ID: ISSW13_paper_P2-28.pdf
Keywords: ramsonde, thin-blade penetrometer, tool comparison
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Title: Comparison of a Snowpack on a Slope and Flat Land by Focusing on the Effect of Water Infiltration
Date: 2013-10-07
Authors: Shinji Ikeda, Takafumi Katsushima, Yasuhiko Ito, Hiroki Matsushita, Yukari Takeuchi, Kazuya Akiyama
Description: Water infiltration of snowpack plays an important role in wet avalanche formation. Several studies have examined water infiltration of snowpacks on fl...
Object ID: ISSW13_paper_P4-17.pdf
Keywords: water infiltration of snowpack, wet snow, snow stratigraphy, snowpack model
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Title: Weak Layer Detection in Simulated Snow Stratigraphy
Date: 2012
Authors: Fabiano Monti, Jürg Schweizer, Charles Fierz
Description: Numerical modelling of snow cover stratigraphy with, for example, the 1-D snow cover model SNOWPACK has the potential to increase the spatial and temp...
Object ID: issw-2012-092-097.pdf
Keywords: snowpack stratigraphy, snow hardness, hand hardness test, weak layer
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Title: Spatial Variability of Snow Stratigraphy From Microwave Radar
Date: 2012
Authors: Hans Peter Marshall, J. And rew Gleason, Achim Heilig, Gary Koh, Matthew Sturm
Description: Slab avalanches occur because of the layered nature of the seasonal snowpack. Differences in metrological conditions during deposition, as well as dif...
Object ID: issw-2012-259-263.pdf
Keywords: spatial variability, radar, snow stratigraphy, snow depth
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Title: Spatial Variabiity of Snowpack on Small Wind Effected Slopes, Central Svalbard
Date: 2012
Authors: Wesley R. Farnsworth, Markus Eckerstorfer, Hanne H. Christiansen
Description: Spatial variability studies of snowpack stability have predominantly been conducted on sheltered uniform slopes despite mountains and avalanche starti...
Object ID: issw-2012-467-472.pdf
Keywords: spatial variability, snowpack, slopes, artificial trigger points, weak layer
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Title: Using Near Infrared Photography to Link Spatial Patterns in Stratigraphy with Stability
Date: 2010
Authors: Edward Bair
Description: A majority of avalanche research has focused on persistent layers. In comparison, we know very little about non-persistent weak layers despite their p...
Object ID: ISSW_P-008.pdf
Keywords: near infrared photography, spatial patterns, stratigraphy, stability
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Title: Associations Between Shear Strength of a Buried Surface Hoar Layer and Stratigraphic, Topographic and Vegetation Characteristics on a “Uniform” Slope
Date: 2006
Authors: Eric Lutz, Karl W. Birkeland, Martin Schneebeli, Kathy J. Hansen, Kalle Kronholm
Description: In this study we quantify 1) changes in spatial and aspatial characteristics of the shear strength of a buried surface hoar layer, and 2) identify ch...
Object ID: issw-2006-027-028.pdf
Keywords: shear strength, snow stratigraphy, snow microstructure, slope uniformity
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Title: Characterising Percolation and Wet-Snow Facies Variability on Devon Island Ice Cap, Nunavut, Canada
Date: 2006
Authors: Michael N. Demuth, Elizabeth M. Morris, Hans-Peter Marshall, David A. Fisher, John Sekerka, Roy M. Koerner, A. Laurence Gray
Description: As the Earth’s coldest regions undergo marked changes due to atmospheric warming, so will the surface facies configurations of its glaciers and...
Object ID: issw-2006-388.pdf
Keywords: wet snow, variability, in situ, ice, stratigraphy
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Title: Field Report on the Validation of a Capacitance Snow Profile Probe in an Avalanche Forecasting Application
Date: 2006
Authors: Steven Conger
Description: During the winters of 2004/05 and 2005/06, I field-tested the prototype and second generation portable, capacitance-type snow sonde in an avalanche fo...
Object ID: issw-2006-540-544.pdf
Keywords: snow density profile, dielectrics, snow sonde
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Title: Empirical Analysis of Snow Deformation Below Penetrometer Tips
Date: 2006
Authors: James Floyer, Bruce Jamieson
Description: Recent field observations suggest that when an object, such as a digital snow penetrometer, is pushed through snow, a zone of densified snow develops...
Object ID: issw-2006-555-561.pdf
Keywords: snow deformation, penetrometer, compacted zone, snowpack stratigraphy
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Title: Water Outflow from Snow During Rain and Melt Events; Milford Highway, New Zealand
Date: 2006
Authors: W. Carran, H. Conway
Description: Avalanches often release within a few minutes after the onset of rain on new snow. The avalanche potential remains high until drainage through the sno...
Object ID: issw-2006-796.pdf
Keywords: stratigraphy, rain, melt, avalanche release, forecasting
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