Spatial and temporal trends of surface-based temperature inversion impact on permafrost distribution

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dc.contributor.authorNoad, Nicholas Craig
dc.contributor.authorUniversity of Lethbridge. Faculty of Arts and Science
dc.contributor.supervisorBonnaventure, Philip
dc.date.accessioned2021-10-28T17:23:32Z
dc.date.available2021-10-28T17:23:32Z
dc.date.issued2021
dc.degree.levelMastersen_US
dc.description.abstractPreliminary findings from previous research in northwestern Canada suggest that surface-based temperature inversions (SBIs) have an influence on permafrost. The aim of this thesis was to quantify and discuss this impact of SBIs on a regional and local valley-to-valley scale. A new SBI characteristic called inversion impact (Iimp) was created to quantify and conceptualize the degree of impact SBIs had on surface air temperatures. Iimp was observed to be significant (≤5.8 °C) on annual average at each of the five sites within the region that had archived radiosonde data available. Significant influence of SBIs on permafrost distribution was observed in two near proximity dissimilar northcentral Yukon valleys using in-situ sensors. Overall, this study highlighted an interaction between SBIs and the state of permafrost that varied both spatially and temporally. This signifies a need to include the influence of SBIs when modelling current and future permafrost distribution in this region.en_US
dc.description.sponsorshipNSERC Graduate Scholarships-Master's program NSERC Discovery Grant Program Northern Scientific Training Programen_US
dc.identifier.urihttps://hdl.handle.net/10133/6082
dc.language.isoen_USen_US
dc.proquest.subject0368en_US
dc.proquest.subject0725en_US
dc.proquestyesYesen_US
dc.publisherLethbridge, Alta. : University of Lethbridge, Dept. of Geography and Environmenten_US
dc.publisher.departmentDepartment of Geography and Environmenten_US
dc.publisher.facultyArts and Scienceen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en_US
dc.subjectpermafrosten_US
dc.subjectsurface based temperature inversionsen_US
dc.subjectclimate changeen_US
dc.subjecthigh latitude mountainous regionsen_US
dc.subjectPermafrost -- Yukonen_US
dc.subjectClimatic changes -- Yukonen_US
dc.subjectValleys -- Yukonen_US
dc.subjectMountains -- Yukonen_US
dc.subjectGlobal temperature changes -- Environmental aspects -- Arctic regionsen_US
dc.subjectTemperature inversions -- Yukonen_US
dc.subjectEarth temperature -- Yukonen_US
dc.subjectDissertations, Academicen_US
dc.titleSpatial and temporal trends of surface-based temperature inversion impact on permafrost distributionen_US
dc.typeThesisen_US
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