Subsurface heat conduction along the CHINARE traverse route, East Antarctica
Using data from three automatic weather stations (LGB69, Eagle and Dome A) from distinctly different climatological zones along the CHINARE (Chinese National Antarctic Research Expedition) traverse route from Zhongshan Station to Dome A, we investigated the characteristics of meteorological conditio...
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ftunivtasecite:oai:ecite.utas.edu.au:154899 2023-06-11T04:05:52+02:00 Subsurface heat conduction along the CHINARE traverse route, East Antarctica Yang, D Ding, M Allison, I Zou, X Chen, X Heil, P Zhang, W Bian, L Xiao, C 2022 application/pdf https://doi.org/10.1017/jog.2022.97 http://ecite.utas.edu.au/154899 en eng Int Glaciol Soc http://ecite.utas.edu.au/154899/1/Subsurface heat conduction along the CHINARE traverse route, east Antarctica.pdf http://dx.doi.org/10.1017/jog.2022.97 Yang, D and Ding, M and Allison, I and Zou, X and Chen, X and Heil, P and Zhang, W and Bian, L and Xiao, C, Subsurface heat conduction along the CHINARE traverse route, East Antarctica, Journal of Glaciology pp. 1-11. ISSN 0022-1430 (2022) [Refereed Article] http://ecite.utas.edu.au/154899 Earth Sciences Climate change science Climatology Refereed Article PeerReviewed 2022 ftunivtasecite https://doi.org/10.1017/jog.2022.97 2023-04-24T22:17:53Z Using data from three automatic weather stations (LGB69, Eagle and Dome A) from distinctly different climatological zones along the CHINARE (Chinese National Antarctic Research Expedition) traverse route from Zhongshan Station to Dome A, we investigated the characteristics of meteorological conditions and subsurface heat conduction. Spatial analysis indicated decreasing trends in air temperature, relative humidity and wind speed from the coastal katabatic wind zone to the inland plateau region, and air temperatures clearly showed a strong daily variability in winter, suggesting the effect from the fluctuation in the Antarctic atmospheric system. We also analyzed the optimal response time of the 1 and 3 m depth snow temperatures to the 0.1 m depth snow temperature for each site under clear/overcast and day/night situations. This showed an important enhancement to the heat transfer from shortwave radiation penetration. Using an iterative optimization method, we estimated the subsurface heat conduction variations along the transect. This was ~35 W m 2 . Multiple maxima in daily mean subsurface fluxes were found in winter, with a typical value above 2 W m 2 , while a single minimum value under 2 W m 2 was found in summer. On an annual scale, a larger mean loss of subsurface heat conduction was observed in the inland plateau compared to in the coastal katabatic area. Finally, we discussed the possible influences of turbulent and radiant transport on the vertical heat response and confirmed the wind enhancement on the growth of thermal conductivity. This preliminary study provides a brief perspective and an important reference for studying subsurface heat conduction in inland areas of Antarctica. Article in Journal/Newspaper Antarc* Antarctic Antarctica Antarctica Journal East Antarctica Journal of Glaciology eCite UTAS (University of Tasmania) Antarctic The Antarctic East Antarctica Zhongshan ENVELOPE(76.371,76.371,-69.373,-69.373) Zhongshan Station ENVELOPE(76.371,76.371,-69.373,-69.373) Journal of Glaciology 1 11 |
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Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Climate change science Climatology |
spellingShingle |
Earth Sciences Climate change science Climatology Yang, D Ding, M Allison, I Zou, X Chen, X Heil, P Zhang, W Bian, L Xiao, C Subsurface heat conduction along the CHINARE traverse route, East Antarctica |
topic_facet |
Earth Sciences Climate change science Climatology |
description |
Using data from three automatic weather stations (LGB69, Eagle and Dome A) from distinctly different climatological zones along the CHINARE (Chinese National Antarctic Research Expedition) traverse route from Zhongshan Station to Dome A, we investigated the characteristics of meteorological conditions and subsurface heat conduction. Spatial analysis indicated decreasing trends in air temperature, relative humidity and wind speed from the coastal katabatic wind zone to the inland plateau region, and air temperatures clearly showed a strong daily variability in winter, suggesting the effect from the fluctuation in the Antarctic atmospheric system. We also analyzed the optimal response time of the 1 and 3 m depth snow temperatures to the 0.1 m depth snow temperature for each site under clear/overcast and day/night situations. This showed an important enhancement to the heat transfer from shortwave radiation penetration. Using an iterative optimization method, we estimated the subsurface heat conduction variations along the transect. This was ~35 W m 2 . Multiple maxima in daily mean subsurface fluxes were found in winter, with a typical value above 2 W m 2 , while a single minimum value under 2 W m 2 was found in summer. On an annual scale, a larger mean loss of subsurface heat conduction was observed in the inland plateau compared to in the coastal katabatic area. Finally, we discussed the possible influences of turbulent and radiant transport on the vertical heat response and confirmed the wind enhancement on the growth of thermal conductivity. This preliminary study provides a brief perspective and an important reference for studying subsurface heat conduction in inland areas of Antarctica. |
format |
Article in Journal/Newspaper |
author |
Yang, D Ding, M Allison, I Zou, X Chen, X Heil, P Zhang, W Bian, L Xiao, C |
author_facet |
Yang, D Ding, M Allison, I Zou, X Chen, X Heil, P Zhang, W Bian, L Xiao, C |
author_sort |
Yang, D |
title |
Subsurface heat conduction along the CHINARE traverse route, East Antarctica |
title_short |
Subsurface heat conduction along the CHINARE traverse route, East Antarctica |
title_full |
Subsurface heat conduction along the CHINARE traverse route, East Antarctica |
title_fullStr |
Subsurface heat conduction along the CHINARE traverse route, East Antarctica |
title_full_unstemmed |
Subsurface heat conduction along the CHINARE traverse route, East Antarctica |
title_sort |
subsurface heat conduction along the chinare traverse route, east antarctica |
publisher |
Int Glaciol Soc |
publishDate |
2022 |
url |
https://doi.org/10.1017/jog.2022.97 http://ecite.utas.edu.au/154899 |
long_lat |
ENVELOPE(76.371,76.371,-69.373,-69.373) ENVELOPE(76.371,76.371,-69.373,-69.373) |
geographic |
Antarctic The Antarctic East Antarctica Zhongshan Zhongshan Station |
geographic_facet |
Antarctic The Antarctic East Antarctica Zhongshan Zhongshan Station |
genre |
Antarc* Antarctic Antarctica Antarctica Journal East Antarctica Journal of Glaciology |
genre_facet |
Antarc* Antarctic Antarctica Antarctica Journal East Antarctica Journal of Glaciology |
op_relation |
http://ecite.utas.edu.au/154899/1/Subsurface heat conduction along the CHINARE traverse route, east Antarctica.pdf http://dx.doi.org/10.1017/jog.2022.97 Yang, D and Ding, M and Allison, I and Zou, X and Chen, X and Heil, P and Zhang, W and Bian, L and Xiao, C, Subsurface heat conduction along the CHINARE traverse route, East Antarctica, Journal of Glaciology pp. 1-11. ISSN 0022-1430 (2022) [Refereed Article] http://ecite.utas.edu.au/154899 |
op_doi |
https://doi.org/10.1017/jog.2022.97 |
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Journal of Glaciology |
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1 |
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11 |
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1768377533028368384 |