Exploring the impact of surface lapse rate change scenarios on mountain permafrost distribution in four dissimilar valleys in Yukon, Canada

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dc.contributor.authorGaribaldi, Madeleine C.
dc.contributor.authorBonnaventure, Philip P.
dc.contributor.authorNoad, NIck C.
dc.contributor.authorKochtitzky, Will
dc.date.accessioned2025-05-15T21:42:01Z
dc.date.available2025-05-15T21:42:01Z
dc.date.issued2024
dc.descriptionOpen access article. Creative Commons Attribution 4.0 International license (CC BY 4.0) applies
dc.description.abstractA scenario-based approach was used to test air and ground response to warming with and without changes to inverted surface lapse rates in four Yukon valleys. Generally, climate warming coupled with weakening of temperature inversions resulted in the greatest increase in air temperature at low elevations. However, ground temperatures at high elevations showed the greatest response to warming and variability between scenarios due to increased connectivity between air and ground. Low elevations showed less of a response to warming and permafrost was largely preserved in these locations. Local models also predicted higher permafrost occurrence compared to a regional permafrost probability model, due to the inclusion of differential surface and thermal offsets. Results show that the spatial warming patterns in these mountains may not follow those predicted in other mountain environments following elevation-dependent warming (EDW). As a result, the concept of EDW should be expanded to become more inclusive of a wider range of possible spatial warming distributions. The purpose of this paper is not to provide exact estimations of warming, but rather to provide hypothetical spatial warming patterns, based on logical predictions of changes to temperature inversion strength, which may not directly follow the distribution projected through EDW.
dc.description.peer-reviewYes
dc.identifier.citationGaribaldi, M. C., Bonnaventure, P. P., Noad, N. C., & Kochtitzky, W. (2024). Exploring the impact of surface lapse rate change scenarios on mountain permafrost distribution in four dissimilar valleys in Yukon, Canada. Arctic Science, 10(4), 749-763.https://doi.org/10.1139/as-2023-0066
dc.identifier.urihttps://hdl.handle.net/10133/7034
dc.language.isoen
dc.publisherCanadian Science Publishing
dc.publisher.departmentDepartment of Geography and Environment
dc.publisher.facultyArts and Science
dc.publisher.institutionUniversity of Lethbridge
dc.publisher.institutionUniversity of New England
dc.publisher.urlhttps://doi.org/10.1139/as-2023-0066
dc.subjectTTOP model
dc.subjectPermafrost
dc.subjectYukon
dc.subjectSurface lapse rate
dc.subjectElevation-dependent warming
dc.subjectSpatial warming
dc.subjectTemperature inversion
dc.subject.lcshPermafrost--Yukon
dc.subject.lcshPermafrost--Research--Yukon
dc.subject.lcshTemperature inversions--Yukon
dc.subject.lcshTemperature lapse rate--Yukon
dc.subject.lcshValleys--Yukon
dc.titleExploring the impact of surface lapse rate change scenarios on mountain permafrost distribution in four dissimilar valleys in Yukon, Canada
dc.typeArticle
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