Dr. Alec van Herwijnen
Function
teamleader
Contact
WSL Institute for Snow and Avalanche Research SLF
Flüelastrasse 11
7260 Davos Dorf
Site
Davos Da B 1 12
Academic Education
- Master in experimental physics, University of Utrecht, the Netherlands
- Master in meteorology and physical oceanography, University of Utrecht, the Netherlands
- PhD in avalanche mechanics, University of Calgary, Canada
- Postdoc at the WSL Institute for Snow and Avalanche Research, Davos, Switzerland
- Postdoc at Montana State University, Bozeman, Montana, USA
Research interests
- Fracture mechanics in snow
- Avalanche formation and forecasting
- Remote avalanche detection
- Snow slope stability evaluation
- Snow cover spatial variability
- Snow digging
FURTHER INFORMATION
Publications WSL
Scientific publication article peer reviewed
Heck, M.; Van Herwijnen, A.; Hammer, C.; Hobiger, M.; Schweizer, J.; Fäh, D., 2019: Automatic detection of avalanches combining array classification and localization. Earth Surface Dynamics, 7, 2: 491-503. doi: 10.5194/esurf-7-491-2019
Reuter, B.; Proksch, M.; Löwe, H.; Van Herwijnen, A.; Schweizer, J., 2019: Comparing measurements of snow mechanical properties relevant for slab avalanche release. Journal of Glaciology, 65, 249: 55-67. doi: 10.1017/jog.2018.93
Birkeland, K.W.; Van Herwijnen, A.; Reuter, B.; Bergfeld, B., 2019: Temporal changes in the mechanical properties of snow related to crack propagation after loading. Cold Regions Science and Technology, 159: 142-152. doi: 10.1016/j.coldregions.2018.11.007
Heck, M.; Hobiger, M.; Van Herwijnen, A.; Schweizer, J.; Fäh, D., 2019: Localization of seismic events produced by avalanches using multiple signal classification. Geophysical Journal International, 216, 1: 201-217. doi: 10.1093/gji/ggy394
Gaume, J.; Chambon, G.; Van Herwijnen, A.; Schweizer, J., 2018: Stress concentrations in weak snowpack layers and conditions for slab avalanche release. Geophysical Research Letters, 45, 16: 8363-8369. doi: 10.1029/2018GL078900
Gaume, J.; Gast, T.; Teran, J.; Van Herwijnen, A.; Jiang, C., 2018: Dynamic anticrack propagation in snow. Nature Communications, 9, 1: 3047 (10 pp.). doi: 10.1038/s41467-018-05181-w
Hagenmuller, P.; Van Herwijnen, A.; Pielmeier, C.; Marshall, H., 2018: Evaluation of the snow penetrometer Avatech SP2. Cold Regions Science and Technology, 149: 83-94. doi: 10.1016/j.coldregions.2018.02.006
Heck, M.; Hammer, C.; Van Herwijnen, A.; Schweizer, J.; Fäh, D., 2018: Automatic detection of snow avalanches in continuous seismic data using hidden Markov models. Natural Hazards and Earth System Science, 18, 1: 383-396. doi: 10.5194/nhess-18-383-2018
Gerling, B.; Lowe, H.; Van Herwijnen, A., 2017: Measuring the elastic modulus of snow. Geophysical Research Letters, 44, 21: 11088-11096. doi: 10.1002/2017GL075110
Bellaire, S.; Van Herwijnen, A.; Mitterer, C.; Schweizer, J., 2017: On forecasting wet-snow avalanche activity using simulated snow cover data. Cold Regions Science and Technology, 144: 28-38. doi: 10.1016/j.coldregions.2017.09.013
Helbig, N.; Mott, R.; Van Herwijnen, A.; Winstral, A.; Jonas, T., 2017: Parameterizing surface wind speed over complex topography. Journal of Geophysical Research D: Atmospheres, 122, 2: 651-667. doi: 10.1002/2016JD025593
Ruiz, S.; Capelli, A.; Van Herwijnen, A.; Schneebeli, M.; Or, D., 2017: Continuum cavity expansion and discrete micromechanical models for inferring macroscopic snow mechanical properties from cone penetration data. Geophysical Research Letters, 44, 16: 8377-8386. doi: 10.1002/2017GL074063
Helbig, N.; Van Herwijnen, A., 2017: Subgrid parameterization for snow depth over mountainous terrain from flat field snow depth. Water Resources Research, 53, 2: 1444-1456. doi: 10.1002/2016WR019872
Gaume, J.; Van Herwijnen, A.; Chambon, G.; Wever, N.; Schweizer, J., 2017: Snow fracture in relation to slab avalanche release: critical state for the onset of crack propagation. Cryosphere, 11, 1: 217-228. doi: 10.5194/tc-11-217-2017
Van Herwijnen, A.; Heck, M.; Schweizer, J., 2016: Forecasting snow avalanches using avalanche activity data obtained through seismic monitoring. Cold Regions Science and Technology, 132: 68-80. doi: 10.1016/j.coldregions.2016.09.014
Van Herwijnen, A.; Gaume, J.; Bair, E.H.; Reuter, B.; Birkeland, K.W.; Schweizer, J., 2016: Estimating the effective elastic modulus and specific fracture energy of snowpack layers from field experiments. Journal of Glaciology, 62, 236: 997-1007. doi: 10.1017/jog.2016.90
Dreier, L.; Harvey, S.; Van Herwijnen, A.; Mitterer, C., 2016: Relating meteorological parameters to glide-snow avalanche activity. Cold Regions Science and Technology, 128: 57-68. doi: 10.1016/j.coldregions.2016.05.003
Schweizer, J.; Reuter, B.; Van Herwijnen, A.; Richter, B.; Gaume, J., 2016: Temporal evolution of crack propagation propensity in snow in relation to slab and weak layer properties. Cryosphere, 10, 6: 2637-2653. doi: 10.5194/tc-10-2637-2016
Monti, F.; Gaume, J.; Van Herwijnen, A.; Schweizer, J., 2016: Snow instability evaluation: calculating the skier-induced stress in a multi-layered snowpack. Natural Hazards and Earth System Science, 16, 3: 775-788. doi: 10.5194/nhess-16-775-2016
Thüring, T.; Schoch, M.; Van Herwijnen, A.; Schweizer, J., 2015: Robust snow avalanche detection using supervised machine learning with infrasonic sensor arrays. Cold Regions Science and Technology, 111: 60-66. doi: 10.1016/j.coldregions.2014.12.014
Stähli, M.; Sättele, M.; Huggel, C.; McArdell, B.W.; Lehmann, P.; Van Herwijnen, A.; Berne, A.; Schleiss, M.; Ferrari, A.; Kos, A.; Or, D.; Springman, S.M., 2015: Monitoring and prediction in early warning systems for rapid mass movements. Natural Hazards and Earth System Science, 15, 4: 905-917. doi: 10.5194/nhess-15-905-2015
Reuter, B.; Van Herwijnen, A.; Veitinger, J.; Schweizer, J., 2015: Relating simple drivers to snow instability. Cold Regions Science and Technology, 120: 168-178. doi: 10.1016/j.coldregions.2015.06.016
Reuter, B.; Schweizer, J.; Van Herwijnen, A., 2015: A process-based approach to estimate point snow instability. Cryosphere, 9, 3: 837-847. doi: 10.5194/tc-9-837-2015
Helbig, N.; Van Herwijnen, A.; Magnusson, J.; Jonas, T., 2015: Fractional snow-covered area parameterization over complex topography. Hydrology and Earth System Sciences, 19, 3: 1339-1351. doi: 10.5194/hess-19-1339-2015
Helbig, N.; Van Herwijnen, A.; Jonas, T., 2015: Forecasting wet-snow avalanche probability in mountainous terrain. Cold Regions Science and Technology, 120: 219-226. doi: 10.1016/j.coldregions.2015.07.001
Gaume, J.; Van Herwijnen, A.; Chambon, G.; Birkeland, K.W.; Schweizer, J., 2015: Modeling of crack propagation in weak snowpack layers using the discrete element method. Cryosphere, 9, 5: 1915-1932. doi: 10.5194/tc-9-1915-2015
Bair, E.H.; Simenhois, R.; Van Herwijnen, A.; Birkeland, K.W., 2015: Using 2 m extended column tests to assess slope stability. Cold Regions Science and Technology, 120: 191-196. doi: 10.1016/j.coldregions.2015.06.021
Gaume, J.; Schweizer, J.; Van Herwijnen, A.; Chambon, G.; Reuter, B.; Eckert, N.; Naaim, M., 2014: Evaluation of slope stability with respect to snowpack spatial variability. Journal of Geophysical Research F: Earth Surface, 119, 9: 1783-1799. doi: 10.1002/2014JF003193
Van Herwijnen, A.; Birkeland, K.W., 2014: Measurements of snow slab displacement in Extended Column Tests and comparison with Propagation Saw Tests. Cold Regions Science and Technology, 97: 97-103. doi: 10.1016/j.coldregions.2013.07.002
LeBaron, A.M.; Miller, D.A.; Van Herwijnen, A., 2014: Measurements of the deformation zone around a split-axis snow micropenetrometer tip. Cold Regions Science and Technology, 97: 90-96. doi: 10.1016/j.coldregions.2013.10.008
Bair, E.H.; Simenhois, R.; Van Herwijnen, A.; Birkeland, K., 2014: The influence of edge effects on crack propagation in snow stability tests. Cryosphere, 8, 4: 1407-1418. doi: 10.5194/tc-8-1407-2014
Van Herwijnen, A., 2013: Experimental analysis of snow micropenetrometer (SMP) cone penetration in homogeneous snow layers. Canadian Geotechnical Journal, 50, 10: 1044-1054. doi: 10.1139/cgj-2012-0336
Van Herwijnen, A.; Miller, D.A., 2013: Experimental and numerical investigation of the sintering rate of snow. Journal of Glaciology, 59, 214: 269-274. doi: 10.3189/2013JoG12J094
Löwe, H.; Van Herwijnen, A., 2012: A Poisson shot noise model for micro-penetration of snow. Cold Regions Science and Technology, 70: 62-70. doi: 10.1016/j.coldregions.2011.09.001
Van Herwijnen, A.; Schweizer, J., 2011: Seismic sensor array for monitoring an avalanche start zone: design, deployment and preliminary results. Journal of Glaciology, 57, 202: 267-276. doi: 10.3189/002214311796405933
Schweizer, J.; Van Herwijnen, A.; Reuter, B., 2011: Measurements of weak layer fracture energy. Cold Regions Science and Technology, 69, 2-3: 139-144. doi: 10.1016/j.coldregions.2011.06.004
Van Herwijnen, A.; Schweizer, J., 2011: Monitoring avalanche activity using a seismic sensor. Cold Regions Science and Technology, 69, 2-3: 165-176. doi: 10.1016/j.coldregions.2011.06.008
Van Herwijnen, A.; Schweizer, J.; Heierli, J., 2010: Measurement of the deformation field associated with fracture propagation in weak snowpack layers. Journal of Geophysical Research F: Earth Surface, 115: F03042 (10 pp.). doi: 10.1029/2009JF001515
Van Herwijnen, A.; Bellaire, S.; Schweizer, J., 2009: Comparison of micro-structural snowpack parameters derived from penetration resistance measurements with fracture character observations from compression tests. Cold Regions Science and Technology, 59: 193-210. doi: 10.1016/j.coldregions.2009.06.006
Van Herwijnen, A.; Heierli, J., 2009: Measurement of crack-face friction in collapsed weak snow layers. Geophysical Research Letters, 36: L23502 (5 pp.). doi: 10.1029/2009GL040389
Further scientific publications
Bellaire, S.; Van Herwijnen, A.; Bavay, M.; Schweizer, J., 2018: Distributed modelling of snow cover instability at regional scale. In: 2018: International snow science workshop proceedings 2018. International snow science workshop, ISSW 2018, Innsbruck. 871-875.
Bobillier, G.; Gaume, J.; Van Herwijnen, A.; Dual, J.; Schweizer, J., 2018: Modeling the propagation saw test with discrete elements. In: 2018: International snow science workshop proceedings 2018. International snow science workshop, ISSW 2018, Innsbruck. 976-980.
Morin, S.; Fierz, C.; Horton, S.; Bavay, M.; Coléou, C.; Dumont, M.; Gobiet, A.; Hagenmuller, P.; Lafaysse, M.; Mitterer, C.; Monti, F.; Müller, K.; Olefs, M.; Snook, J.S.; Techel, F.; Van Herwijnen, A.; Vionnet, V., 2018: Application of physical snowpack models in support of operational avalanche hazard forecasting: a status report on current implementations and prospects for the future. In: 2018: International snow science workshop proceedings 2018. International snow science workshop, ISSW 2018, Innsbruck. 1098-1107.
Mayer, S.; Van Herwijnen, A.; Ulivieri, G.; Schweizer, J., 2018: Evaluating the performance of an operational infrasound avalanche detection system at three locations in the Swiss Alps during two winter seasons. In: 2018: International snow science workshop proceedings 2018. International snow science workshop, ISSW 2018, Innsbruck. 611-615.
Van Herwijnen, A.; Heck, M.; Richter, B.; Sovilla, B.; Techel, F., 2018: When do avalanches release: investigating time scales in avalanche formation. In: 2018: International snow science workshop proceedings 2018. International snow science workshop, ISSW 2018, Innsbruck. 1030-1034.
Steinkogler, W.; Ulivieri, G.; Vezzosi, S.; Hendrikx, J.; Van Herwijnen, A.; Humstad, T., 2018: Infrasound detection of avalanches: operational experience from 28 combined winter seasons and future developments. In: 2018: International snow science workshop proceedings 2018. International snow science workshop, ISSW 2018, Innsbruck. 621-626.
Richter, B.; Van Herwijnen, A.; Rotach, M.W.; Schweizer, J., 2018: Sensitivity of modeled snow instability to meteorological input uncertainty. In: 2018: International snow science workshop proceedings 2018. International snow science workshop, ISSW 2018, Innsbruck. 1186-1190.
Gaume, J.; Gast, T.F.; Teran, J.; Van Herwijnen, A.; Jiang, C., 2018: Unified modeling of the release and flow of snow avalanches using the material point method. In: 2018: International snow science workshop proceedings 2018. International snow science workshop, ISSW 2018, Innsbruck. 1-5.
Heck, M.; Hammer, C.; Hobiger, M.; Van Herwijnen, A.; Schweizer, J.; Fäh, D., 2018: Automatic classification of continuous seismic data for avalanche monitoring purposes. In: 2018: International snow science workshop proceedings 2018. International snow science workshop, ISSW 2018, Innsbruck. 631-635.
Birkeland, K.W.; Van Herwijnen, A.; Reuter, B.; Bergfeld, B., 2018: Snow stabilization following storms: field experiments and modelling of temporal changes in snow mechanical properties following loading. In: 2018: International snow science workshop proceedings 2018. International snow science workshop, ISSW 2018, Innsbruck. 861-865.
Bergfeld, B.; Van Herwijnen, A.; Dual, J.; Schweizer, J., 2018: Dynamic crack propagation in weak snowpack layers: insights from high-resolution, high-speed photography. In: 2018: International snow science workshop proceedings 2018. International snow science workshop, ISSW 2018, Innsbruck. 935-939.
Van Herwijnen, A.; Bair, E.H.; Birkeland, K.W.; Reuter, B.; Simenhois, R.; Jamieson, B.; Schweizer, J., 2016: Measuring the mechanical properties of snow relevant for dry-snow slab avalanche release using particle tracking velocimetry. In: 2016: International snow science workshop proceedings 2016. International snow science workshop, ISSW 2016, Breckenridge, CO, USA, October 2-7, 2016. 397-404.
Simenhois, R.; Birkeland, K.; Van Herwijnen, A., 2016: A smartphone application to estimate the critical slope angle for avalanche release. In: 2016: International snow science workshop proceedings 2016. International snow science workshop, ISSW 2016, Breckenridge, CO, USA, October 2-7, 2016. 383-389.
Schweizer, J.; Reuter, B.; Van Herwijnen, A.; Gaume, J., 2016: Avalance release 101. In: 2016: International snow science workshop proceedings 2016. International snow science workshop, ISSW 2016, Breckenridge, CO, USA, October 2-7, 2016. 1-11.
Reuter, B.; Van Herwijnen, A.; Schweizer, J., 2016: Observer independent measures of snow instability. In: 2016: International snow science workshop proceedings 2016. International snow science workshop, ISSW 2016, Breckenridge, CO, USA, October 2-7, 2016. 390-396.
Pielmeier, C.; Van Herwijnen, A., 2016: Characterizing snow stratigraphy: a comparison of SP2, SnowMicroPen, Ramsonde and hand hardness profiles. In: 2016: International snow science workshop proceedings 2016. International snow science workshop, ISSW 2016, Breckenridge, CO, USA, October 2-7, 2016. 578-584.
Mitterer, C.; Heilig, A.; Schmid, L.; Van Herwijnen, A.; Eisen, O.; Schweizer, J., 2016: Comparison of measured and modeled snow cover liquid water content to improve local wet-snow avalanche predicion. In: 2016: International snow science workshop proceedings 2016. International snow science workshop, ISSW 2016, Breckenridge, CO, USA, October 2-7, 2016. 125-131.
Helbig, N.; Van Herwijnen, A.; Jonas, T., 2016: Deriving mean snow depth in complex terrain from flat field measurements. In: 2016: International snow science workshop proceedings 2016. International snow science workshop, ISSW 2016, Breckenridge, CO, USA, October 2-7, 2016. 707-712.
Heck, M.; Hammer, C.; Van Herwijnen, A.; Schweizer, J.; Fäh, D., 2016: Towards the automatic detection of avalanches in seismic data using Hidden Markov Models. In: 2016: International snow science workshop proceedings 2016. International snow science workshop, ISSW 2016, Breckenridge, CO, USA, October 2-7, 2016. 322-328.
Harvey, S.; Van Herwijnen, A.; Richter, B., 2016: Statistical nowcast of avalanche activity at the regional scale. In: 2016: International snow science workshop proceedings 2016. International snow science workshop, ISSW 2016, Breckenridge, CO, USA, October 2-7, 2016. 1173-1179.
Gaume, J.; Van Herwijnen, A.; Chambon, G.; Wever, N.; Schweizer, J., 2016: Critical length for the onset of crack propagation in snow: reconciling shear and collapse. In: 2016: International snow science workshop proceedings 2016. International snow science workshop, ISSW 2016, Breckenridge, CO, USA, October 2-7, 2016. 12-16.
Gaume, J.; Reuter, B.; Van Herwijnen, A.; Schweizer, J., 2016: A new crack propagation criterion for skier-triggered snow slab avalanches. In: 2016: International snow science workshop proceedings 2016. International snow science workshop, ISSW 2016, Breckenridge, CO, USA, October 2-7, 2016. 484-491.
Calonne, N.; Cetti, C.; Fierz, C.; Van Herwijnen, A.; Jaggi, M.; Löwe, H.; Matzl, M.; Schmid, L.; Schneebeli, M., 2016: A unique time series of daily and weekly snowpack measurements at Weissfluh-Joch, Davos, Switzerland. In: 2016: International snow science workshop proceedings 2016. International snow science workshop, ISSW 2016, Breckenridge, CO, USA, October 2-7, 2016. 684-689.
Bellaire, S.; Van Herwijnen, A.; Mitterer, C.; Helbig, N.; Jonas, T.; Schweizer, J., 2016: Regional forecasting of wet snow avalanche cycles: an essential tool for avalanche warning services?. In: 2016: International snow science workshop proceedings 2016. International snow science workshop, ISSW 2016, Breckenridge, CO, USA, October 2-7, 2016. 140-147.
Bair, E.H.; Gaume, J.; Van Herwijnen, A., 2016: The role of collapse in avalanche release: review and implications for practitioners and future reserach. In: 2016: International snow science workshop proceedings 2016. International snow science workshop, ISSW 2016, Breckenridge, CO, USA, October 3-7, 2016. 24-31.
Birkeland, K.W.; Van Herwijnen, A., 2016: The effect of increasing load on weak layer fracture. In: 2016: International snow science workshop proceedings 2016. International snow science workshop, ISSW 2016, Breckenridge, CO, USA, October 2-7, 2016. 17-23.
Schweizer, J.; Bartelt, P.; Van Herwijnen, A., 2015: Snow avalanches. In: Haeberli, W.; Whiteman, C. (eds), 2015: Snow and Ice-Related Hazards, Risks and Disasters. Amsterdam, Elsevier. 395-436. doi: 10.1016/B978-0-12-394849-6.00012-3
Van Herwijnen, A.; Fierz, C., 2014: Monitoring snow cornice development using time-lapse photography. In: 2014: International snow science workshop proceedings 2014. International snow science workshop, ISSW 2014, Banff, AB, Canada, September 29 - October 3, 2014. 865-869.
Van Herwijnen, A.; Heck, M.; Schweizer, J., 2014: Detecting avalanches using seismic monitoring systems. In: 2014: International snow science workshop proceedings 2014. International snow science workshop, ISSW 2014, Banff, AB, Canada, September 29 - October 3, 2014. 116-121.
Schweizer, J.; Reuter, B.; Van Herwijnen, A.; Gauthier, D.; Jamieson, J.B., 2014: On how the tensile strength of the slab affects crack propagation propensity. In: 2014: International snow science workshop proceedings 2014. International snow science workshop, ISSW 2014, Banff, AB, Canada, September 29 - October 3, 2014. 164-168.
Reuter, B.; Schweizer, J.; Van Herwijnen, A., 2014: Simple drivers of snow instability. In: 2014: International snow science workshop proceedings 2014. International snow science workshop, ISSW 2014, Banff, AB, Canada, September 29 - October 3, 2014. 716-721.
Helbig, N.; Techel, F.; Van Herwijnen, A.; Jonas, T., 2014: Linking large-scale wet-snow spatial patterns in mountainous terrain to incident radiation and topography. In: 2014: International snow science workshop proceedings 2014. International snow science workshop, ISSW 2014, Banff, AB, Canada, September 29 - October 3, 2014. 456-460.
Gaume, J.; Chambon, G.; Reiweger, I.; Van Herwijnen, A.; Schweizer, J., 2014: On the failure criterion of weak-snow layers using the discrete element method. In: 2014: International snow science workshop proceedings 2014. International snow science workshop, ISSW 2014, Banff, AB, Canada, September 29 - October 3, 2014. 681-688.
Gaume, J.; Van Herwijnen, A.; Schweizer, J.; Chambon, G.; Birkeland, K., 2014: Discrete element modeling of crack propagation in weak snowpack layers. In: 2014: International snow science workshop proceedings 2014. International snow science workshop, ISSW 2014, Banff, AB, Canada, September 29 - October 3, 2014. 139-145.
Birkeland, K.W.; Van Herwijnen, A.; Knoff, E.; Staples, M.; Bair, E.; Simenhois, R., 2014: The role of slabs and weak layers in fracture arrest. In: 2014: International snow science workshop proceedings 2014. International snow science workshop, ISSW 2014, Banff, AB, Canada, September 29 - October 3, 2014. 156-163.
Bair, E.H.; Simenhois, R.; Van Herwijnen, A.; Birkeland, K., 2014: What do Longer tests tell us about fracture and stability?. In: 2014: International snow science workshop proceedings 2014. International snow science workshop, ISSW 2014, Banff, AB, Canada, September 29 - October 3, 2014. 169-173.
Van Herwijnen, A.; Berthod, N.; Simenhois, R.; Mitterer, C., 2013: Using time-lapse photography in avalanche research. In: Naaim-Bouvet, F.; Durand, Y.; Lambert, R. (eds), 2013: International snow science workshop proceedings 2013. International snow science workshop, ISSW 2013, Grenoble - Chamonix Mont-Blanc, France, October 7-11, 2013. 950-954.
Van Herwijnen, A.; Dreier, L.; Bartelt, P., 2013: Towards a basic avalanche characterization based on the generated seismic signal. In: Naaim-Bouvet, F.; Durand, Y.; Lambert, R. (eds), 2013: International snow science workshop proceedings 2013. International snow science workshop, ISSW 2013, Grenoble - Chamonix Mont-Blanc, France, October 7-11, 2013. 1033-1037.
Schweizer, J.; Van Herwijnen, A., 2013: Can near real-time avalanche occurrence data improve avalanche forecasting?. In: Naaim-Bouvet, F.; Durand, Y.; Lambert, R. (eds), 2013: International snow science workshop proceedings 2013. International snow science workshop, ISSW 2013, Grenoble - Chamonix Mont-Blanc, France, October 7-11, 2013. 195-198.
Reuter, B.; Proksch, M.; Loewe, H.; Van Herwijnen, A.; Schweizer, J., 2013: On how to measure snow mechanical properties relevant to slab avalanche release. In: Naaim-Bouvet, F.; Durand, Y.; Lambert, R. (eds), 2013: International snow science workshop proceedings 2013. International snow science workshop, ISSW 2013, Grenoble - Chamonix Mont-Blanc, France, October 7-11, 2013. 7-11.
Helbig, N.; Van Herwijnen, A., 2013: On modeling the formation and survival of surface hoar in complex terrain. In: Naaim-Bouvet, F.; Durand, Y.; Lambert, R. (eds), 2013: International snow science workshop proceedings 2013. International snow science workshop, ISSW 2013, Grenoble - Chamonix Mont-Blanc, France, October 7-11, 2013. 52-56.
Gaume, J.; Schweizer, J.; Van Herwijnen, A.; Chambon, G.; Eckert, N.; Naaim, M., 2013: The effect of spatial variations of snowpack properties on snow slope stability: a mechanically-based statistical approach. In: Naaim-Bouvet, F.; Durand, Y.; Lambert, R. (eds), 2013: International snow science workshop proceedings 2013. International snow science workshop, ISSW 2013, Grenoble - Chamonix Mont-Blanc, France, October 7-11, 2013. 57-60.
Bair, E.H.; Simenhois, R.; Van Herwijnen, A.; Birkeland, K., 2013: Edge effects in propagation tests. In: Naaim-Bouvet, F.; Durand, Y.; Lambert, R. (eds), 2013: International snow science workshop proceedings 2013. International snow science workshop, ISSW 2013, Grenoble - Chamonix Mont-Blanc, France, October 7-11, 2013. 355-356.
Simenhois, R.; Birkeland, K.W.; Van Herwijnen, A., 2012: Measurements of ECT scores and crack-face friction in non-persistent weak layers: What are the implications for practitioners?. In: 2012: International snow science workshop proceedings 2012. International snow science workshop, ISSW 2012, Anchorage, AK, USA, September 16-21, 2012. 104-110.
LeBaron, A.M.; Miller, D.A.; Van Herwijnen, A., 2012: Axisymmetric measurements of extended deformation around the snow micropenetrometer tip. In: 2012: International snow science workshop proceedings 2012. International snow science workshop, ISSW 2012, Anchorage, AK, USA, September 16-21, 2012. 408-413.
Birkeland, K.W.; Van Herwijnen, A., 2012: Using high-speed video to better understand Extended Column Tests. In: 2012: International snow science workshop proceedings 2012. International snow science workshop, ISSW 2012, Anchorage, AK, USA, September 16-21, 2012. 98-103.
Bair, E.H.; Simenhois, R.; Van Herwijnen, A.; Birkeland, K.; Dozier, J., 2012: Storm snow avalanches: characteristics and forecasting. In: 2012: International snow science workshop proceedings 2012. International snow science workshop, ISSW 2012, Anchorage, AK, USA, September 16-21, 2012. 111-114.
Van Herwijnen, A.; Turner, J.; Schweizer, J., 2010: Listening to snow - avalanche detection using a seismic sensor array. In: 2010: International snow science workshop proceedings 2010. International snow science workshop, ISSW 2010, Squaw Valley, CA, USA, October 17-22, 2010. 373-379.
Van Herwijnen, A.; Heierli, J., 2010: A field method for measuring slab stiffness and weak layer fracture energy. In: 2010: International snow science workshop proceedings 2010. International snow science workshop, ISSW 2010, Squaw Valley, CA, USA, October 17-22, 2010. 232-237.
Schweizer, J.; Van Herwijnen, A.; Reuter, B., 2010: Fracture energy of weak snowpack layers. In: 2010: International snow science workshop proceedings 2010. International snow science workshop, ISSW 2010, Squaw Valley, CA, USA, October 17-22, 2010. 720-723.
Heierli, J.; Van Herwijnen, A.; Gumbsch, P.; Zaiser, M., 2010: Some insights into fracture propagation in weak snowpack layers. In: 2010: International snow science workshop proceedings 2010. International snow science workshop, ISSW 2010, Squaw Valley, CA, USA, October 17-22, 2010. 717-719.
Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop. Proceedings. International Snow Science Workshop, Davos, Switzerland, September 27 - October 2, 2009. Davos, Switzerland, Swiss Federal Institute for Forest, Snow and Landscape Research. 699 p.
Wirz, V.; Schirmer, M.; Lehning, M., 2009: Analysis of temporal and spatial snow depth changes in a steep rock face. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 155-159.
Van Herwijnen, A.; Heierli, J., 2009: Measurements of weak snowpack layer friction. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 112-114.
Techel, F.; Pielmeier, C., 2009: Wet snow diurnal evolution and stability assessment. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 256-261.
Suter, C.; Harvey, S., 2009: Mobile information systems for avalanche topics. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 391-394.
Stoffel, L.; Margreth, S., 2009: Artificial avalanche release above settlements. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 572-576.
Steinkogler, W.; Fierz, C.; Lehning, M.; Obleitner, F., 2009: Systematic assessment of new snow settlement in SNOWPACK. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 132-135.
Schwitter, P.; Stoffel, L., 2009: Erfahrungen mit der Gratlawine bei Blatten, Kt. Wallis, Schweiz. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 35-38.
Schweizer, J.; Bellaire, S., 2009: Where to dig? - On optimizing sampling strategy. In: Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 298-300.
Schirmer, M.; Schweizer, J.; Lehning, M., 2009: Regional stability evaluation with modelled snow cover data. In: Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 306-312.
Schaer, M.; Margreth, S., 2009: First experiences in applying the swiss 'guidline to account for avalanche hazard of ropeways in ski areas'. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 413-417.
Schaefer, M.; Kern, M., 2009: High-speed video recording in snow chute experiments. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 492-494.
Rheinberger, C.M.; Rhyner, J., 2009: Evaluation of avalanche warning strategies for traffic routes using signal detection theory. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 559-563.
Reuter, B.; Schweizer, J., 2009: Avalanche triggering by sound: myth and truth. In: Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 330-333.
Reiweger, I.; Ernst, R.; Schweizer, J.; Dual, J., 2009: Force-controlled shear experiments with snow samples. In: Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 120-123.
Rammer, L.; Schreiber, H.; Hiller, M.; Dufour, F.; Sovilla, B.; Gauer, P.; Kern, M.A., 2009: Automatisied range-gated Doppler radar measurements of a spontaneously released avalanche at the Vallée de la Sionne test site. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 472-476.
Pinzer, B.; Schneebeli, M., 2009: Temperature gradient metamorphism is not a classical coarsening process. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 58-61.
Oller, P.; Janeras, M.; De Buen, H.; Arnó, G.; Christen, M.; Garcia, C.; Martinez, P., 2009: Using AVAL-1D to simulate avalanches in eastern Pyrenees. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 524-528.
Mott, R.; Schirmer, M.; Grünewald, T.; Lehning, M., 2009: Understanding snow transport processes shaping the mountain snow-cover. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 141-145.
Monti, F.; Cagnati, A.; Fierz, C.; Lehning, M.; Valt, M.; Pozzi, A., 2009: Validation of the SNOWPACK model in the Dolomites. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 313-317.
Moehle, S.; Stoffel, L., 2009: Web-based tool to support local avalanche services with hazard evaluation and documentation. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 554-558.
Mitterer, C.; Mott, R.; Schweizer, J., 2009: Observations and analysis of two wet-snow avalanche cycles. In: Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 262-266.
Meister, R., 2009: Snow profiling at Weissfluhjoch. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 124-128.
Margreth, S.; Romang, H., 2009: PROTECT - a Swiss approach to the assessment of the effectiveness of mitigation measures. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 538-542.
Jamieson, B.; Schweizer, J.; Shea, C., 2009: Simple calculations of avalanche risk for backcountry skiing. In: Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 336-340.
Heilig, A.; Marshall, H.P.; Eisen, O.; Schneebeli, M., 2009: Non-destructive quantification of snowpack properties. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 82-86.
Heggli, M.; Jaggi, M.; Pinzer, B.; Steiner, S.; Theile, T.; Schneebeli, M., 2009: Visualization of three-dimensional snow: how to use it in snow education. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 62-66.
Harvey, S.; Nigg, P., 2009: Practical risk assessment and decision making in avalanche terrain. An overview of concepts and tools in Switzerland. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 654-658.
Harvey, S.; Heierli, J., 2009: Interpretation of prevalent avalanche scenarios on the basis of the anticrack model. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 276-281.
Grünewald, T.; Schirmer, M.; Lehning, M., 2009: Measurements of small scale spatial and temporal variability of snow depth and SWE in a small mountain catchment. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 151-154.
Gromke, C.; Guala, M.; Manes, C.; Walter, B.; Lehning, M., 2009: Aerodynamic and surface characteristic length scales of snow covered flat planes. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 136-140.
Gergely, M.; Schneebeli, M.; Roth, K., 2009: Snow characterization by optical properties. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 87-91.
Fischer, J.T.; Kowalski, J.; Pudasaini, S.P.; Miller, S.A., 2009: Dynamic avalanche modeling in natural terrain. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 448-453.
Bühler, Y.; Hüni, A.; Christen, M.; Meister, R.; Kellenberger, T., 2009: Automated detection and mapping of rough snow surfaces including avalanche deposits using airborne optical remote sensing. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 170-174.
Baroudi, D.; Sovilla, B.; Thibert, E., 2009: Comparison and complementarities of avalanche pressure measurements: piezo-electric load cells and deformation based pressure deconvolution. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 443-447.
Alberini, A.; Leiter, A.M.; Rheinberger, C.M.; McCormick, C.; Mizrahi, A., 2009: AVALUATION: estimating the economic value of the avalanche bulletin. In: Schweizer, J.; Van Herwijnen, A. (eds), 2009: International snow science workshop proceedings 2009. International snow science workshop, ISSW 2009, Davos, Switzerland, September 27 - October 2, 2009. 384-388.
Van Herwijnen, A.; Bellaire, S.; Schweizer, J., 2008: Micro structural snowpack parameters associated with fracture character in compression tests. In: 2008: International snow science workshop proceedings 2008. International snow science workshop, ISSW 2008, Whistler, BC, Canada, September 21-27, 2008. 1035-1041.
Van Herwijnen, A.; Heierli, J.; Schweizer, J., 2008: Field study on fracture propagation in weak snowpack layers. In: 2008: International snow science workshop proceedings 2008. International snow science workshop, ISSW 2008, Whistler, BC, Canada, September 21-27, 2008. 1-8.
Magazine article and brochures
Reuter, B.; Van Herwijnen, A.; Schweizer, J., 2016: Untangling slab avalanche release. Avalanche Journal, 111: 44-47.
Schweizer, J.; Van Herwijnen, A., 2014: Les données en temps quasi-réel. De l'occurence des avalanches peuvent-elles améliorer la prévision des avalanches?. Neige et avalanches, 145: 18.
Gaume, J.; Schweizer, J.; Van Herwijnen, A.; Chambon, G.; Eckert, N.; Naaim, M., 2014: Influence de la variabilité. Des propriétés mécaniques du manteau neigeux sur la stabilité d'une pente de neige. Neige et avalanches, 145: 14.
Schweizer, J.; Van Herwijnen, A., 2008: Auslösung von Schneebrettlawinen. FAN Agenda, Fachleute Naturgefahren Schweiz, 15-16.
Other publications
van Herwijnen, A., Jamieson, J.B., 2007. Snowpack properties associated with fracture initiation and propagation resulting in skier-triggered dry slab avalanches. Cold Regions Science and Technology 50(1-3), 13-22.
van Herwijnen, A., Jamieson, J.B., 2007. Fracture character in compression tests. Cold Regions Science and Technology, 47(1-2), 60-68. Translated in French and published in Neige et Avalanches 108.
van Herwijnen, A., Jamieson, J.B., 2005. High-speed photography of fractures in weak snowpack layers. Cold Regions Science and Technology 43(1-2), 71-82.
van Dop, H., van As, D., van Herwijnen, A., Hibberd, M., Jonker, H., 2005. Length scales of scalar diffusion in the convective boundary layer: Laboratory observations. Boundary-Layer Meteorology 116(1), 1-35.
Other publications
van Herwijnen, A. 2005. Fractures in weak snowpack layers in relation to slab avalanche release. PhD. Thesis, University of Calgary.
van Herwijnen, A., Jamieson J.B., 2005. Fracture character in compression tests. Proceedings of the 2004 International Snow Science Workshop, Jackson Hole, Wyoming, USA.
van Herwijnen, A., Jamieson, J.B., 2004. More results on fracture characterization in compression tests. Avalanche News 68, Canadian Avalanche Association, Revelstoke, British Columbia, 38-41.
van Herwijnen, A., Jamieson, J.B., 2003. An update on fracture character in stability tests. Avalanche News 66, Canadian Avalanche Association, Revelstoke, British Columbia, 26-28.
van Herwijnen, A., Jamieson, J.B., 2003. Interpreting fracture character in stability tests. Proceedings of 2002 International Snow Science Workshop, Penticton, British Columbia, Canada.
van Herwijnen, A., Jamieson, J.B., 2003. Preliminary results from controlled experiments on the growth of faceted crystals above a wet snow layer. Proceedings of 2002 International Snow Science Workshop, Penticton, British Columbia, Canada. Reprinted in Avalanche News 64, 32-37.
van Dop, H., van Herwijnen, A., van As, D., Hibberd, M.F., 2002. Velocity, temperature and scalar length scales in the CBL: Observations and theory. Proceedings of 5th Symposium on Boundary Layers and Turbukence, Boston, USA.
Conference contributions (presenting author)
Oral presentation: Using time-lapse photography to investigate processes related to avalanche release. International Union of Geodesy and Geophysics (IUGG) General Assembly, 22 June to 2 July 2015, Prague, Czech Republic.
Oral presentation: Detecting Avalanches Using Seismic Monitoring Systems. International Snow Science Workshop, 29 September to 3 October 2014, Banff, Alberta, Canada.<br/>
Poster presentation: Monitoring Snow Cornice Development Using Time-Lapse Photography. International Snow Science Workshop, 29 September to 3 October 2014, Banff, Alberta, Canada<br/>
PICO presentation: Remote detection of artificially triggered avalanches below a fixed avalanche control installation. General Assembly of the European Geophysical Union, 27 April - 2 May 2014, Vienna, Austria.
PICO presentation: Robust snow avalanche detection using machine learning on infrasonic array data. General Assembly of the European Geophysical Union, 27 April - 2 May 2014, Vienna, Austria.
Oral presentation: Using time-lapse photography in avalanche research, International Snow Science Workshop, 7-11 October 2013, Grenoble, France.
Poster presentation: Towards a basic avalanche characterization based on the generated seismic signal, International Snow Science Workshop, 7-11 October 2013, Grenoble, France.
Oral presentation: Monitoring of snow avalanche activity in alpine start zones with a geophone array, International workshop of acoustic and seismic monitoring of bedload and mass movements, 4-7 September 2013, Birmensdorf, Switzerland.
Oral presentation: Using particle tracking velocimetry to measure the mechanical properties of snow relevant for dry-snow slab avalanche release, Davos Atmosphere and Cryosphere Assembly DACA-13, 8-12 July 2013, Davos, Switzerland.
Poster presentation: Investigating glide snow avalanche release using seismic monitoring in combination with time-lapse photography, General Assembly of the European Geophysical Union, 7-12 April 2013, Vienna, Austria.
Poster presentation: Investigating surface hoar spatial distributions in complex topography, General Assembly of the European Geophysical Union, 22-27 April 2012, Vienna, Austria.
Poster presentation: SMP cone penetration in homogeneous snow layers, General Assembly of the European Geophysical Union, 22-27 April 2012, Vienna, Austria.
Poster presentation: Seismic detection of avalanches in an alpine basin, American Geophysical Union (AGU) fall meeting, 5-9 December 2001, San Francisco, California, USA.
Oral presentation: Laboratory experiments on the formation and structure of depth hoar, International Union of Geodesy and Geophysics (IUGG) General Assembly, 28 June to 7 July 2011, Melbourne, Victoria, Australia.
Oral presentation: Monitoring glide avalanches using time-lapse photography, International Union of Geodesy and Geophysics (IUGG) General Assembly, 28 June to 7 July 2011, Melbourne, Victoria, Australia.
Oral presentation: A field test to measure slab stiffness and weak layer fracture energy, International Snow Science Workshop, 17 to 22 October 2010, Lake Tahoe, California, USA.
Poster presentation: Using a seismic sensor to monitor avalanche activity, International Snow Science Workshop, 17 to 22 October 2010, Lake Tahoe, California, USA.
Poster presentation: Field measurement of weak layer fracture energy, International Snow Science Workshop, 17 to 22 October 2010, Lake Tahoe, California, USA.
Oral presentation: Field measurements of friction in weak snowpack layers, International Snow Science Workshop, 27 September to 2 October 2009, Davos, Switzerland.
Oral presentation: Field measurements on fracture propagation in weak snowpack layers, International Snow Science Workshop, 21-27 September 2008, Whistler, British Columbia, Canada.
Poster presentation: Micro-structural snowpack parameters associated with fracture character, International Snow Science Workshop, 21-27 September 2008, Whistler, British Columbia, Canada.
Poster presentation: Field experiments on fracture propagation in weak snowpack layers, General Assembly of the European Geophysical Union, 13-19 April 2008, Vienna, Austria.
Poster presentation: Development of a seismic sensor array for an avalanche start zone, General Assembly of the European Geophysical Union, 13-19 April 2008, Vienna, Austria.
Poster presentation: Snowpack properties associated with skier-triggering of dry slab avalanches, General Assembly of the European Geophysical Union, 2-7 April 2006, Vienna, Austria.
Oral presentation: High-speed photography of fractures in weak snowpack layers, General Assembly of the European Geophysical Union, 25-30 April 2004, Nice, France.
Oral presentation: Fracture character in compression tests, International Snow Science Workshop, 19-24 September 2004, Jackson Hole, Wyoming, USA.
Poster presentation: Interpreting fracture character in stability tests, International Snow Science Workshop, 29 September-4 October 2002, Penticton, British Columbia, Canada.