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Variability of Ground Heat Flux at T...

Morris, Sara M.

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Variability of Ground Heat Flux at Tiksi Station.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Variability of Ground Heat Flux at Tiksi Station./
作者:	Morris, Sara M.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
面頁冊數:	94 p.
附註:	Source: Masters Abstracts International, Volume: 79-12.
Contained By:	Masters Abstracts International79-12.
標題:	Physical geography. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10790707
ISBN:	9780438044807

Variability of Ground Heat Flux at Tiksi Station.
Morris, Sara M.

Variability of Ground Heat Flux at Tiksi Station. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 94 p.

Source: Masters Abstracts International, Volume: 79-12.

Thesis (M.A.)--University of Colorado at Boulder, 2018.

This item must not be sold to any third party vendors.

This study examines the spatial variability in ground heat flux measured at four sites in the vicinity of the Russian Arctic meteorological observatory at Tiksi during a full annual cycle in 2016. Nine land cover types were identified surrounding the Tiksi observatory using a map acquired from World View via the Finnish Meteorological Institute (FMI). FMI found that land cover types vary in the vicinity of the observatory on scales of meters, implying that this information needs to be taken into account to properly upscale point measurements for comparisons to models. The ground heat flux was calculated using flux plates and soil temperature measurements at four identified soil locations: stony, grassy (two flux plates at this location), dry fen, and wet fen. To obtain a ground heat flux value, a term is also included to account for changes in energy stored in the soil above the measured ground heat flux plate at each of the measurement sites. This change in energy storage was estimated from measured temperature profiles and soil heat capacities from published studies. Results highlight the difficulty in defining soil properties necessary for calculating the storage change and of obtaining direct flux measurements from all land cover types in an Arctic region. Results also demonstrate the need for weighted averages of ground heat fluxes to upscale to model or satellite grid scales.

ISBN: 9780438044807Subjects--Topical Terms:

516662
Physical geography.
Subjects--Index Terms:

Active layer

Variability of Ground Heat Flux at Tiksi Station.
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500 $a Source: Masters Abstracts International, Volume: 79-12.
500 $a Publisher info.: Dissertation/Thesis.
500 $a Advisor: Serreze, Mark.
502 $a Thesis (M.A.)--University of Colorado at Boulder, 2018.
506 $a This item must not be sold to any third party vendors.
520 $a This study examines the spatial variability in ground heat flux measured at four sites in the vicinity of the Russian Arctic meteorological observatory at Tiksi during a full annual cycle in 2016. Nine land cover types were identified surrounding the Tiksi observatory using a map acquired from World View via the Finnish Meteorological Institute (FMI). FMI found that land cover types vary in the vicinity of the observatory on scales of meters, implying that this information needs to be taken into account to properly upscale point measurements for comparisons to models. The ground heat flux was calculated using flux plates and soil temperature measurements at four identified soil locations: stony, grassy (two flux plates at this location), dry fen, and wet fen. To obtain a ground heat flux value, a term is also included to account for changes in energy stored in the soil above the measured ground heat flux plate at each of the measurement sites. This change in energy storage was estimated from measured temperature profiles and soil heat capacities from published studies. Results highlight the difficulty in defining soil properties necessary for calculating the storage change and of obtaining direct flux measurements from all land cover types in an Arctic region. Results also demonstrate the need for weighted averages of ground heat fluxes to upscale to model or satellite grid scales.
590 $a School code: 0051.
650 4 $a Physical geography. $3 516662
653 $a Active layer
653 $a Arctic
653 $a Flux
653 $a Ground
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773 0 $t Masters Abstracts International $g 79-12.
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