Dielectric permittivity of snow measured along the route traversed in the Japanese–Swedish Antarctic Expedition 2007/08
As a joint contribution of Japan and Sweden to the International Polar Year 2007-09, a field expedition between Syowa and Wasa stations in East Antarctica was carried out in the 2007/08 austral summer season. Along the 2800 km long expedition route, the dielectric permittivity of the upper 1 m snow...
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Online Access: | http://hdl.handle.net/2115/44586 https://doi.org/10.3189/172756410791392745 |
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/44586 2023-05-15T13:29:12+02:00 Dielectric permittivity of snow measured along the route traversed in the Japanese–Swedish Antarctic Expedition 2007/08 Sugiyama, Shin Enomoto, Hiroyuki Fujita, Shuji Fukui, Kotaro Nakazawa, Fumio Holmlund, Per http://hdl.handle.net/2115/44586 https://doi.org/10.3189/172756410791392745 eng eng International Glaciological Society http://www.igsoc.org/ http://hdl.handle.net/2115/44586 Annals of Glaciology, 51(55): 9-15 http://dx.doi.org/10.3189/172756410791392745 450 article fthokunivhus https://doi.org/10.3189/172756410791392745 2022-11-18T01:02:02Z As a joint contribution of Japan and Sweden to the International Polar Year 2007-09, a field expedition between Syowa and Wasa stations in East Antarctica was carried out in the 2007/08 austral summer season. Along the 2800 km long expedition route, the dielectric permittivity of the upper 1 m snow layer was measured at intervals of approximately 50 km using a snow fork, a parallel-wire transmission-line resonator. More than 2000 measurements were performed under carefully calibrated conditions, mostly in the interior of Antarctica. The permittivity ε′ was a function of snow density as in previous studies on dry snow, but the values were significantly smaller than those reported before. In the light of the dielectric mixture theory, the relatively smaller ε′ obtained in this study can be attributed to the snow structures characteristic in the studied region. Our data suggest that the permittivity of snow in the Antarctic interior is significantly affected by weak bonding between snow grains, which is due to depth-hoar formation in the extremely low-temperature conditions. Article in Journal/Newspaper Annals of Glaciology Antarc* Antarctic Antarctica East Antarctica International Polar Year Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Antarctic The Antarctic East Antarctica Austral Wasa ENVELOPE(-13.408,-13.408,-73.043,-73.043) Annals of Glaciology 51 55 9 15 |
institution |
Open Polar |
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Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
450 |
spellingShingle |
450 Sugiyama, Shin Enomoto, Hiroyuki Fujita, Shuji Fukui, Kotaro Nakazawa, Fumio Holmlund, Per Dielectric permittivity of snow measured along the route traversed in the Japanese–Swedish Antarctic Expedition 2007/08 |
topic_facet |
450 |
description |
As a joint contribution of Japan and Sweden to the International Polar Year 2007-09, a field expedition between Syowa and Wasa stations in East Antarctica was carried out in the 2007/08 austral summer season. Along the 2800 km long expedition route, the dielectric permittivity of the upper 1 m snow layer was measured at intervals of approximately 50 km using a snow fork, a parallel-wire transmission-line resonator. More than 2000 measurements were performed under carefully calibrated conditions, mostly in the interior of Antarctica. The permittivity ε′ was a function of snow density as in previous studies on dry snow, but the values were significantly smaller than those reported before. In the light of the dielectric mixture theory, the relatively smaller ε′ obtained in this study can be attributed to the snow structures characteristic in the studied region. Our data suggest that the permittivity of snow in the Antarctic interior is significantly affected by weak bonding between snow grains, which is due to depth-hoar formation in the extremely low-temperature conditions. |
format |
Article in Journal/Newspaper |
author |
Sugiyama, Shin Enomoto, Hiroyuki Fujita, Shuji Fukui, Kotaro Nakazawa, Fumio Holmlund, Per |
author_facet |
Sugiyama, Shin Enomoto, Hiroyuki Fujita, Shuji Fukui, Kotaro Nakazawa, Fumio Holmlund, Per |
author_sort |
Sugiyama, Shin |
title |
Dielectric permittivity of snow measured along the route traversed in the Japanese–Swedish Antarctic Expedition 2007/08 |
title_short |
Dielectric permittivity of snow measured along the route traversed in the Japanese–Swedish Antarctic Expedition 2007/08 |
title_full |
Dielectric permittivity of snow measured along the route traversed in the Japanese–Swedish Antarctic Expedition 2007/08 |
title_fullStr |
Dielectric permittivity of snow measured along the route traversed in the Japanese–Swedish Antarctic Expedition 2007/08 |
title_full_unstemmed |
Dielectric permittivity of snow measured along the route traversed in the Japanese–Swedish Antarctic Expedition 2007/08 |
title_sort |
dielectric permittivity of snow measured along the route traversed in the japanese–swedish antarctic expedition 2007/08 |
publisher |
International Glaciological Society |
url |
http://hdl.handle.net/2115/44586 https://doi.org/10.3189/172756410791392745 |
long_lat |
ENVELOPE(-13.408,-13.408,-73.043,-73.043) |
geographic |
Antarctic The Antarctic East Antarctica Austral Wasa |
geographic_facet |
Antarctic The Antarctic East Antarctica Austral Wasa |
genre |
Annals of Glaciology Antarc* Antarctic Antarctica East Antarctica International Polar Year |
genre_facet |
Annals of Glaciology Antarc* Antarctic Antarctica East Antarctica International Polar Year |
op_relation |
http://www.igsoc.org/ http://hdl.handle.net/2115/44586 Annals of Glaciology, 51(55): 9-15 http://dx.doi.org/10.3189/172756410791392745 |
op_doi |
https://doi.org/10.3189/172756410791392745 |
container_title |
Annals of Glaciology |
container_volume |
51 |
container_issue |
55 |
container_start_page |
9 |
op_container_end_page |
15 |
_version_ |
1765999252304035840 |