Variations in snow strength and stability on uniform slopes

Cold Regions Science and Technology

Volumn 39, Issue 2-3, 2004, Pages 205-218

  Landry, C ^a   Birkeland, K ^a,b   Hansen, K ^a   Borkowski, J ^a   Brown, R ^c   Aspinall, R ^a  

^a MONTANA STATE UNIVERSITY   (United States)

^b US Forest Service National Avalanche Center   (United States)

^c Montana State University   (United States)

Author keywords

Avalanche forecasting; Extrapolation; Spatial variation; Stability

Indexed keywords

AVALANCHES (SNOWSLIDES); CONVERGENCE OF NUMERICAL METHODS; EXTRAPOLATION; IMPORTANCE SAMPLING; SHEAR STRESS;

AVALANCHE FORECASTING; BRITISH COLUMBIA; COEFFICIENTS OF VARIATIONS; SPATIAL VARIATIONS; STABILITY CONDITION; STABILITY DATA; STABILITY INDICES; STRESS CONDITION;

STABILITY;

EID: 33845411162     PISSN: 0165232X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.coldregions.2003.12.003     Document Type: Article

References (31)

1. Armstrong, R.L., 1991. Snow properties research and data management Snow Science: Reflections on the past, Perspectives on the Future. Proceedings of the Alta symposium, The Center for Snow Science. Alta, Utah, pp. 1 - 9
2. Birkeland, K.W., 1998. Terminology and predominant processes associated with the formation of weak layers of near-surface faceted crystals in the mountain snowpack. Arct. Alp. Res. 30 (2), 193- 199
3. Birkeland, K.W., 2001. Spatial patterns of snow stability throughout a small mountain range. J. Glaciol. 47 (157), 176- 186
4. Birkeland, K.W., Landry, C.C., 2002. Changes in spatial patterns of snow stability through time. Proceedings of the 2002 International Snow Science Workshop, Penticton, British Columbia, Canada. British Columbia Ministry of Transportation, Avalanche Program, Victoria, British Columbia, pp. 482-489
5. Birkeland, K., Kronholm, K., Schneebeli, M., Pielmeier, C., in press Changes in the hardness and shear strength of a buried surface hoar layer. Ann. Glaciol., 38
6. Bradley, C., 1970. The location and timing of deep slab avalanches J. Glaciol. 9 (56), 253- 261
7. CAA/NRCC, 1995. Weather observation sites and procedures Appendix A, Observation Guidelines and Recording Standards for Weather, Snowpack and Avalanches. NRCC Technical Memorandum, vol. 132. Canadian Avalanche Association, Revelstoke, British Columbia, pp. 61- 62
8. Chalmers, T.S., Jamieson, J.B., 2001. Extrapolating the skier stability of buried surface hoar layers from study plot measurements.Cold Reg. Sci. Technol. 33 (2- 3), 163- 177
9. Conway, H., Abrahamson, J., 1984. Snow stability index. J. Glaciol.30 (106), 321- 327
10. Föhn, P.M.B., 1987. The stability index and various triggering mechanisms. Avalanche Formation, Movement and Effects IAHS Publ., vol. 162, pp. 195- 214
11. Föhn, P.M.B., 1989. Snowcover stability tests and the areal variability of snow strength. Proceedings of the 1988 International Snow Science Workshop, Whistler, British Columbia, Canada.Canadian Avalanche Association, Revelstoke, British Columbia, pp. 262-273
12. Fredston, J., Fessler, D., 1994. Snow Sense-a guide to evaluating snow avalanche hazard. Alaska Mountain Safety Center, Anchorage, Alaska, USA, p. 116
13. Jamieson, J.B., Johnston, C.D., 1993a. Experience with rutschblocks. Proceedings of the 1992 International Snow Science Workshop, Breckenridge, Colorado, USA. Colorado Avalanche Information Center, Boulder, Colorado, pp. 150- 159
14. Jamieson, J.B., Johnston, C.D., 1993b. Shear frame stability parameters for large-scale avalanche forecasting. Ann. Glaciol. 18, 268- 273
15. Jamieson, B., Johnston, C.D., 2001. Evaluation of the shear frame test for weak snowpack layers. Ann. Glaciol. 32, 59- 69
16. Johnson, G., Jamieson, J.B., 2000. Strength changes of layers of faceted snow crystals in the Columbia and Rocky Mountain snowpack climates in southwestern Canada. Proceedings of the 2000 International Snow Science Workshop, Big Sky, Montana, USA. American Avalanche Association, Pagosa Springs, Colorado, pp. 86- 93
17. Johnson, G., Jamieson, J.B., 2000. Strength changes of layers of faceted snow crystals in the Columbia and Rocky Mountain snowpack climates in southwestern Canada. Proceedings of the 2000 International Snow Science Workshop, Big Sky, Montana, USA, pp. 86- 93
18. Johnson, R.F., Birkeland, K.W., 2002. Integrating shear quality into stability test results. Proceedings of the 2002 International Snow ScienceWorkshop, Penticton, British Columbia, Canada. British Columbia Ministry of Transportation, Avalanche Program, Victoria, British Columbia, pp. 508- 513
19. Johnson, R.F., Birkeland, K.W., 2002. Integrating shear quality into stability test results. Proceedings of the 2002 International Snow Science Workshop, Penticton, British Columbia, Canada, pp. 508- 513
20. Kronholm, K., Schweizer, J., Schneebeli, M., 2002. Spatial variability of snow stability on small slopes. Proceedings of the 2002 International Snow Science Workshop, Penticton, British Columbia, Canada. British Columbia Ministry of Transportation, Avalanche Program, Victoria, British Columbia, pp. 549-554
21. LaChapelle, E.R., 1980. The fundamental processes in conventional avalanche forecasting. J. Glaciol. 26 (94), 75- 84
22. Landry, C.C., 2002. Spatial variation in snow stability on uniform slopes: implications for extrapolation to surrounding terrain. MS thesis, Department of Earth Sciences, Montana State University, Bozeman, Montana, USA, p. 248
23. Landry, C.C., Borkowski, J., Brown, R.L., 2001. Quantified loaded column stability test: mechanics, procedure, sample-size selection, and trials. Cold Reg. Sci. Technol. 33 (2- 3), 103- 121
24. McCammon, I., Schweizer, J., 2002. A field method for identifying structural weaknesses in the snowpack. Proceedings of the 2002 International Snow Science Workshop, Penticton, British Columbia, Canada. British Columbia Ministry of Transportation, Avalanche Program, Victoria, British Columbia, pp. 477- 481
25. McClung, D.M., 2002. The elements of applied avalanche forecasting: Part I. The human issues. Nat. Hazards 25, 111 - 119
26. McClung, D.M., Schaerer, P., 1993. The Avalanche Handbook. The Mountaineers, Seattle, Washington, USA, p. 272
27. Roch, A., 1966. Les variations de la résistance de la neige. Proceedings of the International Symposium on Scientific Aspects of Snow and Ice Avalanches, 1965. IAHS Publ., vol. 69, pp. 86- 99
28. Schweizer, J., Weisinger, T., 2001. Snow profile interpretation for stability evaluation. Cold Reg. Sci. Technol. 33 (2- 3), 179- 188
29. Stewart, K., Jamieson, B., 2002. Spatial variability of slab stability in avalanche starting zones. Proceedings of the 2002 International Snow Science Workshop, Penticton, British Columbia, Canada. British Columbia Ministry of Transportation, Avalanche Program, Victoria, British Columbia, pp. 544- 548
30. Stewart, K., Jamieson, B., 2002. Spatial variability of slab stability in avalanche starting zones. Proceedings of the 2002 International Snow Science Workshop, Penticton, British Columbia, Canada, pp. 544-548
31. Tremper, B., 2001. Staying Alive in Avalanche Terrain. The Mountaineers, Seattle, Washington, p. 284.