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dc.contributor.authorSykes, John
dc.contributor.authorLarsen, Håvard Toft
dc.contributor.authorHaegeli, Pascal
dc.contributor.authorStatham, Grant
dc.date.accessioned2024-09-16T11:18:12Z
dc.date.available2024-09-16T11:18:12Z
dc.date.issued2024-03-20
dc.description.abstractThe Avalanche Terrain Exposure Scale (ATES) is a system for classifying mountainous terrain based on the degree of exposure to avalanche hazard. The intent of ATES is to improve backcountry recreationist’s ability to make informed risk management decisions by simplifying their terrain analysis. Access to ATES has been largely limited to manually generated maps in high-use areas due to the cost and time to generate ATES maps. Automated ATES (AutoATES) is a chain of geospatial models which provides a path towards developing ATES maps on large spatial scales for relatively minimal cost compared to manual maps. This research validates and localizes AutoATES using two ATES benchmark maps which are based on independent ATES maps from three field experts. We compare the performance of AutoATES in two study areas with unique snow climate and terrain characteristics: Connaught Creek in Glacier National Park, British Columbia, Canada, and Bow Summit in Banff National Park, Alberta, Canada. Our results show that AutoATES aligns with the ATES benchmark maps in 74.5 % of the Connaught Creek study area and 84.4 % of the Bow Summit study area. This is comparable to independently developed manual ATES maps which on average align with the ATES benchmark maps in 76.1 % of Connaught Creek and 84.8 % of Bow Summit. We also compare a variety of DEM types (lidar, stereo photogrammetry, Canadian National Topographic Database) and resolutions (5–26 m) in Connaught Creek to investigate how input data type affects AutoATES performance. Overall, we find that DEM resolution and type are not strong indicators of accuracy for AutoATES, with a map accuracy of 74.5 % ± 1 % for all DEMs. This research demonstrates the efficacy of AutoATES compared to expert manual ATES mapping methods and provides a platform for large-scale development of ATES maps to assist backcountry recreationists in making more informed avalanche risk management decisions.en_US
dc.identifier.citationSykes, Larsen, Haegeli, Statham. Automated Avalanche Terrain Exposure Scale (ATES) mapping - local validation and optimization in western Canada. Natural Hazards and Earth System Sciences. 2024;24(3):947-971en_US
dc.identifier.cristinIDFRIDAID 2259850
dc.identifier.doi10.5194/nhess-24-947-2024
dc.identifier.issn1561-8633
dc.identifier.issn1684-9981
dc.identifier.urihttps://hdl.handle.net/10037/34732
dc.language.isoengen_US
dc.publisherCopernicus Publicationsen_US
dc.relation.journalNatural Hazards and Earth System Sciences
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2024 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleAutomated Avalanche Terrain Exposure Scale (ATES) mapping - local validation and optimization in western Canadaen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Med mindre det står noe annet, er denne innførselens lisens beskrevet som Attribution 4.0 International (CC BY 4.0)