Exploring a New Air-Surface Temperature Diurnal Wave Analysis Method for Permafrost Areas
Existing air-surface temperature time series analysis methods for permafrost regions, such as n-factors, are largely limited to describing larger-scale mean conditions, while waveform analysis methods have typically focused on a single waveform propagating through a relatively uniform, primarily con...
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| Format: | Thesis |
| Language: | unknown |
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2019
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| Online Access: | https://curve.carleton.ca/7db1a99d-a4c3-4670-b105-1053b9eb718d https://doi.org/10.22215/etd/2019-13692 https://ocul-crl.primo.exlibrisgroup.com/permalink/01OCUL_CRL/j2o5om/alma991022742936705153 |
| Summary: | Existing air-surface temperature time series analysis methods for permafrost regions, such as n-factors, are largely limited to describing larger-scale mean conditions, while waveform analysis methods have typically focused on a single waveform propagating through a relatively uniform, primarily conductive medium (such as soil). Although the air-surface relation is more complex—there are advective inputs to air temperature, non-uniform and non-conductive interposing media, and the air and surface waveforms reflect separate (but related) heat transfer processes—air-surface waveform analysis presents a potential opportunity to analyze temperature series on an approximately diurnal scale. Using surface temperature series from sites in the Northwest Territories, a diurnal wave analysis method is proposed and evaluated as a potential means of extracting valuable information from surface temperature series that goes well beyond what can be learned from mean condition methods. |
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