Articles | Volume 22, issue 8
Nat. Hazards Earth Syst. Sci., 22, 2673–2701, 2022
https://doi.org/10.5194/nhess-22-2673-2022
Nat. Hazards Earth Syst. Sci., 22, 2673–2701, 2022
https://doi.org/10.5194/nhess-22-2673-2022
Research article
22 Aug 2022
Research article | 22 Aug 2022

The impact of terrain model source and resolution on snow avalanche modeling

Aubrey Miller et al.

Data sets

Interactive webmap of study results Mountain Research Centre https://arcg.is/0fqHS4

ArcticDEM C. Porter, P. Morin, I. Howat, M.-J. Noh, B. Bates, K. Peterman, S. Keesey, M. Schlenk, J. Gardiner, K. Tomko, M. Willis, C. Kelleher, M. Cloutier, E. Husby, S. Foga, H. Nakamura, M. Platson, M. Wethington, C. Williamson, G. Bauer, J. Enos, G. Arnold, W. Kramer, P. Becker, A. Doshi, C. D'Souza, P. Cummens, F. Laurier, and M. Bojesen https://doi.org/10.7910/DVN/OHHUKH

Model code and software

NeoGeographyToolkit/StereoPipeline 2.7.0 (2.7.0) R. Beyer, O. Alexandrov, S. McMichael, M. Broxton, M. Lundy, K. Husmann, L. Edwards, A. Nefian, B. Smith, D. Shean, T. Smith, mstyer, A. Annex, Z. Moratto, harguess, A. Aravkin, J. Meyer, S. Bhushan, and jlaura https://doi.org/10.5281/zenodo.3963341

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Short summary
Natural hazard modelers simulate mass movements to better anticipate the risk to people and infrastructure. These simulations require accurate digital elevation models. We test the sensitivity of a well-established snow avalanche model (RAMMS) to the source and spatial resolution of the elevation model. We find key differences in the digital representation of terrain greatly affect the simulated avalanche results, with implications for hazard planning.
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