Statistics – Computation
Scientific paper
Oct 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3219504k&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 19, CiteID L19504
Statistics
Computation
Cryosphere: Snow (1827, 1863), Cryosphere: Avalanches, Nonlinear Geophysics: Complex Systems, Computational Geophysics: Cellular Automata
Scientific paper
Snow avalanches are a major mountain hazard that kills hundreds of people and causes millions of dollars in damage worldwide annually. Yet, the relationship between the well-documented spatial variability of the snowpack and the avalanche release process is not well understood. We utilize a cellular automata model to show that the spatial structure of shear strength may be critically important for avalanche fracture propagation. Fractures through weak layers with large-scale spatial structure are much more likely to propagate over large areas than fractures through weak layers with smaller-scale spatial structure. Our technique of integrating spatial structure into the model can improve many cellular automata models that aim to explain and predict other natural hazards, such as forest fires, landslides and earthquakes.
Birkeland Karl W.
Kronholm Kalle
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