By Doug Chabot. Poster presented at the 2004 ISSW, and published in the Proceedings of the 2004 ISSW, Jackson, Wyoming.
Articles
By Ron Johnson and Karl Birkeland. Paper presented at the 2002 ISSW, and published in the Proceedings of the 2002 ISSW, Penticton, British Columbia.
By Doug Chabot. Paper presented at the 2002 ISSW, and published in the Proceedings of the 2002 ISSW, Penticton, British Columbia.
A few years ago I was climbing in the Alaska Range. My partner and I were stuck 26 pitches up the first ascent of a mixed face five days into a seven-day storm. As I looked down the face covered with rockbands, couloirs and pockets of snow....
A Comparison Study of the Shredblock and Rutschblock Snow Stablility Tests by Andy Gleason. Presented at the 1998 ISSW, and to be published in the Proceedings of the 1998 ISSW, Sunriver, Oregon.
The Shredblock test is a field test to measure the relative instability of the snowpack in a backcountry setting with minimal equipment. The Shredblock test is based on the Rutschblock test but uses a snowboard instead of skis to load an isolated column of snow.
Methods
By Karl Birkeland. Paper presented at the 1998 ISSW, and to be published in the Proceedings of the 1998 ISSW, Sunriver, Oregon.
By Karl Birkeland and Cary Mock. Published in 1996 in Mountain Research and Development, 16(3), 281-286.
Karl Birkeland1, Ron Johnson2, and Scott Schmidt3
Abstract
We have a deep slab avalanche problem throughout the advisory area. Adjacent mountain ranges likely have this problem as well. It exists because the entire winter’s snowpack rests on a layer of facets near the ground. It produced avalanches in late December and early January and again following heavy snowfall in February and early March. This weak layer of facets, formed in early December during extreme cold weather will be a concern for the rest of the season.
Published in the January 2014 issue of CARVE.
The third week of December provided some valuable avalanche lessons when three people in two separate incidents triggered and were caught in avalanches near the Bridger Bowl boundary. In both cases the parties exited the ski area into the backcountry. The first incident involved two highly experienced skiers on Saddle Peak. Like they have done for years, they rode the Slaschman’s lift and hiked