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Your search for Subject Extended Column Test (ECT)resulted in 59 records.

Title: 40 Years of NGI’s Full-Scale Avalanche Test-Site Ryggfonn
Date: 2013-10-07
Authors: Peter Gauer, Krister Kristensen
Description: The Norwegian Geotechnical Institute (NGI) has been running full-scale avalanche experiments at the Ryggfonn test-site in western Norway for close to ...
Object ID: ISSW13_paper_O4-35.pdf
Keywords: avalanche, test-site, full-scale experiments
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Title: The Experimental Snow Avalanche Test Site at Seehore Peak in Aosta Valley (IT) MAP3 ALCOTRA Project
Date: 2013-10-07
Authors: V. Segor, L. Pitet, M. Maggioni, B. Frigo, M. Freppaz, B. Chiaia, E. Bovet, E. Ceaglio, A. Welf, P. Dellavedova
Description: Since 2009 the Seehore test site is operative within the MonterosaSki resort in Aosta Valley (NW Italy). This real scale test site was intended to stu...
Object ID: ISSW13_paper_O4-36.pdf
Keywords: small/medium avalanches, real scale test site, dynamics, impact forces, snowdrift
View additional details about The Experimental Snow Avalanche Test Site at Seehore Peak in Aosta Valley (IT) MAP3 ALCOTRA Project

Title: Stability Tests and Their Association With the Local Avalanche Danger
Date: 2013-10-07
Authors: Shane Haladuick, Michael Schirmer, Bruce Jamieson
Description: The avalanche forecast regions in Canada range from 100 to 30,000 km2, far larger than the 10 km2 covered in a typical backcountry day. This differenc...
Object ID: ISSW13_paper_O5-01.pdf
Keywords: local avalanche danger, compression test, rutschblock test, avalanche problem, avalanche forecasting
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Title: Retour d'Expérience sur le Chantier de Claies Paravalanches de Oz-en-Oisans Feedback on the Site Snow Racks Oz-en-Oisans
Date: 2013-10-07
Authors: Robit P. GTS, Villard N. GTS
Description: In 2010 GTS realized 550m of Snow bridges (Avalanche supporting structures) in the town of Oz-en-Oisans that was asked for by RTM and the General cou...
Object ID: ISSW13_paper_P1-66.pdf
Keywords: avalanche supporting structures, carbon impact, experimental site
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Title: Field Report on the Implementation of a Remotely Controlled Automated Terrestrial Laser Scanner
Date: 2013-10-07
Authors: Thomas Gigele, Reinhard Fromm, Marc S. Adams
Description: Due to adverse weather and snow conditions, as well as a limited extent of available manpower, avalanche test sites in the Alps are often not accessi...
Object ID: ISSW13_paper_P2-26.pdf
Keywords: automated terrestrial laser scanner, remote control, avalanche, snowcatcher
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Title: A New Application for Quick Boundary Limits of Avalanche Events: Procedure and First Validation
Date: 2013-10-07
Authors: Bornaz L., Durand N., Frigo B., Dellavedova P., Segor V.
Description: In the framework of MAP3 ALCOTRA project, a 3D mapping tool is under developing to rapidly take the avalanche census and implement the regional Cadast...
Object ID: ISSW13_paper_P2-34.pdf
Keywords: avalanche census, solid image, avalanche cadastre, zoning
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Title: Preliminary Measurements and Survey of Snowdrift at the Seehore Avalanche Test Site – Aosta Valley (IT)
Date: 2013-10-07
Authors: Maggioni M., Durand N., Frigo B., Pallara O., Freppaz M., Dellavedova P., Segor V., Naaim- Bouvet F., Bellot H.
Description: In high elevation areas drifting snow influences the snowpack spatial distribution and consequently its stability. The amount of snow drifted from th...
Object ID: ISSW13_paper_P2-65.pdf
Keywords: snowdrift, avalanche release zone, experimental data, nw italian alps
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Title: Using High-Speed Video to Better Understand Extended Column Tests
Date: 2012
Authors: Karl W. Birkeland, Alec van Herwijnen
Description: Extended Column Tests (ECTs) have become increasingly popular for assessing snowpack stability. However, we still do not fully understand what happen...
Object ID: issw-2012-098-103.pdf
Keywords: extended column test, propagation saw test, snowpack stability test,
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Title: Measurements of ECT Scores and Crack-Face Friction in Non-Persistent Weak Layers: What are the Implications for Practitioners?
Date: 2012
Authors: Ron Simenhois, Karl W. Birkeland, Alec van Herwijnen
Description: Field observations suggest that avalanches releasing on non-persistent weak layers tend to slide on steeper slopes than other dry slab avalanches. Rec...
Object ID: issw-2012-104-110.pdf
Keywords: weak snowpack layers, extended column test, slopes, dry slab avalanche,
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Title: Storm Snow Avalanches: Characteristics and Forecasting
Date: 2012
Authors: Edward H. Bair, Ron Simenhois, Alec van Herwijnen, Karl Birkeland, Jeff Dozier
Description: At ski areas, a majority of avalanches fail in storm snow. We investigate these avalanches using stability tests and avalanche observations from Calif...
Object ID: issw-2012-111-114.pdf
Keywords: storm snow, ski area, extended column test
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Title: A Modified Extended Column Test to Reduce Slab Degradation: Preliminary Results
Date: 2012
Authors: Maggi Kraft, Matt Wieland, Jordy Hendrikx
Description: Snow profiles and stability tests are commonly used to evaluate the strength of the snowpack. While conducting a stability test such as the extended ...
Object ID: issw-2012-1028-1032.pdf
Keywords: slabs, weak layer, snowpack stability test,
View additional details about A Modified Extended Column Test to Reduce Slab Degradation: Preliminary Results

Title: Nowcast With a Forescast – Snow Cover Simulations on Slopes
Date: 2012
Authors: Sascha Bellaire, Bruce Jamieson
Description: The snow cover model SNOWPACK simulates the snow cover formation and evolution based on meteorological parameters. In the past, these parameters were...
Object ID: issw-2012-172-178.pdf
Keywords: snowpack, snow cover modeling, avalanche warning, numerical weather prediction models, snow cover stratigraphy, model output statistics
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Title: Using a Thermal Imager to Quantify Buried Thermal Structure in Natural Snow
Date: 2012
Authors: Cora Shea, Bruce Jamieson, Karl Birkeland
Description: Avalanche researchers and practitioners have long measured snowpack temperatures in snow pits with thermometers about 10 cm apart. This led to the ass...
Object ID: issw-2012-267-276.pdf
Keywords: temperature gradient, thermal imaging, snow crystals, snow stability tests
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Title: Close Encounters With Avalanches During Rain-On-Snow: Lessons Learned
Date: 2012
Authors: W. Carran, H. Conway, A. Carran, Milford Team
Description: Two close encounters with avalanches during rain-on-snow in the spring of 1996 were aha-moments for the Milford Road avalanche program; these definin...
Object ID: issw-2012-285-289.pdf
Keywords: instability assessment, snow stability evaluation, explosives, start zones
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Title: The Propagation Saw Test (PST): A Review of its Development, Applications, and Recent Research
Date: 2012
Authors: Dave Gauthier, Bruce Jamieson
Description: The Propagation Saw Test (PST) method was developed independently in Switzerland and in Canada in 2005 and 2006. It was inspired partly by observation...
Object ID: issw-2012-1047-1053.pdf
Keywords: fracture propagation, snow stability tests, avalanche safety
View additional details about The Propagation Saw Test (PST): A Review of its Development, Applications, and Recent Research