2026-09-20T05:11:54.337711900Zhttps://opus.uleth.ca/server/oai/requestoai:opus.uleth.ca:10133/60822021-10-29T06:05:46Zcom_10133_3346com_10133_1com_10133_296col_10133_3347col_10133_298
ULethbridge OPUS Repository
supervisor
Bonnaventure, Philip
author
Noad, Nicholas Craig
author
University of Lethbridge. Faculty of Arts and Science
2021-10-28T17:23:32Z
2021-10-28T17:23:32Z
2021
https://hdl.handle.net/10133/6082
Preliminary 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
permafrost
surface based temperature inversions
climate change
high latitude mountainous regions
Permafrost -- Yukon
Climatic changes -- Yukon
Valleys -- Yukon
Mountains -- Yukon
Global temperature changes -- Environmental aspects -- Arctic regions
Temperature inversions -- Yukon
Earth temperature -- Yukon
Dissertations, Academic
Spatial and temporal trends of surface-based temperature inversion impact on permafrost distribution
Thesis
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URL
http://localhost:4000/bitstreams/2ac52bb0-999c-4711-9f17-3087b0e5e593/download
File
MD5
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3628715
application/pdf
NOAD_NICK_MSC_2021.pdf
URL
http://localhost:4000/bitstreams/f40816bd-03c5-451c-9de5-48cfbc5e7933/download
File
MD5
1ca954f824f777ce32dcb5c999d90fe0
344383
text/plain
NOAD_NICK_MSC_2021.pdf.txt