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Publication
Featured researches published by Martin Schneebeli.
Annals of Glaciology | 2004
Karl W. Birkeland; Kalle Kronholm; Martin Schneebeli; Christine Pielmeier
Abstract We investigated a buried surface-hoar layer using the SnowMicroPen (SMP), an instrument designed to measure detailed snowpack profiles.We collected data from two adjacent parts of a slope 6 days apart. In addition, one manual snowpack profile was sampled each day, as well as 50 quantified loaded column tests (QLCTs) which provided an index of shear strength. For the SMP data, a 900 m2 area was sampled on both days in a grid with points 3 mapart, with some sub-areas of more closely spaced measurements. We collected 86 SMP profiles on the first day and 129 on the second day. Our analyses involved manually locating layer boundaries and calculating statistics for the force signal through the surface-hoar layer. The shear strength index increased by 40% between the two sampling days, but the SMP data show no statistical difference in layer thickness, and the mean, minimum, median, and a variety of percentile measures of the SMP force signal through the layer also do not change. Interestingly, the maximum hardness, and the variance and coefficient of variation of the SMP signal, increased. Since the small SMP tip might only break one or a couple of bonds as it passes through the weak layer, we interpret these changes as being indicative of increasing bond strength. Though we cannot specifically tie the increasing maximum hardness of the SMP signal to our QLCT results, our work suggests that the maximum SMP signal within buried surface-hoar layers may be useful for tracking increases in the shear strength of those layers.
Annals of Glaciology | 1998
Martin Schneebeli; Jerome B. Johnson
Archive | 1997
Jerome B. Johnson; Martin Schneebeli
2002 International Snow Science Workshop, Penticton, British Columbia | 2002
Christine Pielmeier; Martin Schneebeli
2002 International Snow Science Workshop, Penticton, British Columbia | 2002
Kalle Kronholm; Jürg Schweizer; Martin Schneebeli
Geoscientific Instrumentation, Methods and Data Systems Discussions | 2016
Juha Lemmetyinen; Anna Kontu; Jouni Pulliainen; Juho Vehviläinen; Kimmo Rautiainen; Andreas Wiesmann; Christian Mätzler; Charles Werner; Helmut Rott; Thomas Nagler; Martin Schneebeli; Martin Proksch; Dirk Schüttemeyer; Michael Kern; Malcolm Davidson
Proceedings of the 2000 International Snow Science Workshop, October 1-6, Big Sky, Montana | 2000
Christine Pielmeier; Martin Schneebeli
Proceedings Whistler 2008 International Snow Science Workshop September 21-27, 2008 | 2008
Frank Techel; Christine Pielmeier; Martin Schneebeli
International Snow Science Workshop 2016 Proceedings, Breckenridge, CO, USA | 2016
Neige Calonne; Cecilia Cetti; Charles Fierz; Alec van Herwijnen; Matthias Jaggi; Henning Löwe; Margret Matzl; Lino Schmid; Martin Schneebeli
EUSAR 2014; 10th European Conference on Synthetic Aperture Radar; Proceedings of | 2014
Juha Lemmetyinen; Jouni Pulliainen; Anna Kontu; Andreas Wiesmann; Christian Maetzler; Helmut Rott; Karl Voglmeier; Thomas Nagler; Adriano Meta; Alex Coccia; Martin Schneebeli; Martin Proksch; Malcolm Davidson; Dirk Schuettemeyer; Chung-Chi Lin; Michael Kern