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

Miller, Aubrey; Sirguey, Pascal; Morris, Simon; Bartelt, Perry; Cullen, Nicolas; Redpath, Todd; Thompson, Kevin; Bühler, Yves

doi:https://doi.org/10.5194/nhess-22-2673-2022

Articles | Volume 22, issue 8

https://doi.org/10.5194/nhess-22-2673-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/nhess-22-2673-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 8

Research article

|

22 Aug 2022

Research article |

| 22 Aug 2022

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

Aubrey Miller, Pascal Sirguey, Simon Morris, Perry Bartelt, Nicolas Cullen, Todd Redpath, Kevin Thompson, and Yves Bühler

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Jun 2022	61	22	4	87
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Aug 2022	251	86	3	340
Sep 2022	122	35	1	158
Oct 2022	106	35	2	143
Nov 2022	78	16	0	94
Dec 2022	35	11	0	46
Jan 2023	38	12	0	50
Feb 2023	36	23	2	61
Mar 2023	34	12	0	46
Apr 2023	33	18	0	51
May 2023	32	17	3	52
Jun 2023	17	10	0	27
Jul 2023	21	20	3	44
Aug 2023	20	11	2	33
Sep 2023	38	19	0	57
Oct 2023	44	22	1	67
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Cumulative views and downloads (calculated since 05 Apr 2022)

Month	HTML	PDF	XML	Total
Apr 2022	160	68	9	237
May 2022	67	28	2	97
Jun 2022	61	22	4	87
Jul 2022	15	16	0	31
Aug 2022	251	86	3	340
Sep 2022	122	35	1	158
Oct 2022	106	35	2	143
Nov 2022	78	16	0	94
Dec 2022	35	11	0	46
Jan 2023	38	12	0	50
Feb 2023	36	23	2	61
Mar 2023	34	12	0	46
Apr 2023	33	18	0	51
May 2023	32	17	3	52
Jun 2023	17	10	0	27
Jul 2023	21	20	3	44
Aug 2023	20	11	2	33
Sep 2023	38	19	0	57
Oct 2023	44	22	1	67
Nov 2023	19	19	0	38

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Latest update: 29 Nov 2023

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.