2006), Direct measurement of sea ice thermal conductivity: No surface reduction
[1] We present new laboratory measurements of the thermal conductivity of small cores of landfast first-year (FY) and multiyear (MY) sea ice from McMurdo Sound, Antarctica. The conductivity of surface (0–10 cm) and subsurface (45–55 cm) FY ice, 2.14 ± 0.11 and 2.09 ± 0.11 W m–1 K–1, respectively, an...
Main Authors: | , , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.534.4141 http://www2.gi.alaska.edu/snowice/sea-lake-ice/papers/06PTH.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.534.4141 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.534.4141 2023-05-15T13:37:47+02:00 2006), Direct measurement of sea ice thermal conductivity: No surface reduction D. J. Pringle H. J. Trodahl T. G. Haskell The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.534.4141 http://www2.gi.alaska.edu/snowice/sea-lake-ice/papers/06PTH.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.534.4141 http://www2.gi.alaska.edu/snowice/sea-lake-ice/papers/06PTH.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www2.gi.alaska.edu/snowice/sea-lake-ice/papers/06PTH.pdf text ftciteseerx 2016-01-08T10:45:14Z [1] We present new laboratory measurements of the thermal conductivity of small cores of landfast first-year (FY) and multiyear (MY) sea ice from McMurdo Sound, Antarctica. The conductivity of surface (0–10 cm) and subsurface (45–55 cm) FY ice, 2.14 ± 0.11 and 2.09 ± 0.11 W m–1 K–1, respectively, and MY surface ice, 1.88 ± 0.13 W m–1 K–1, are all consistent with effective medium predictions for measured salinity, density, and temperature. In contrast with a previous result from thermistor array measurements in FY ice, the present measurements in FY ice show no conductivity reduction over the top 50 cm. We have reexamined the analysis of these previous array measurements and have identified analytical effects that rendered this analysis unreliable in the presence of high-frequency surface temperature variations and pronounced surface warming and cooling events. We conclude that this apparent near-surface conductivity reduction was an artefact. Text Antarc* Antarctica McMurdo Sound Sea ice Unknown McMurdo Sound |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
[1] We present new laboratory measurements of the thermal conductivity of small cores of landfast first-year (FY) and multiyear (MY) sea ice from McMurdo Sound, Antarctica. The conductivity of surface (0–10 cm) and subsurface (45–55 cm) FY ice, 2.14 ± 0.11 and 2.09 ± 0.11 W m–1 K–1, respectively, and MY surface ice, 1.88 ± 0.13 W m–1 K–1, are all consistent with effective medium predictions for measured salinity, density, and temperature. In contrast with a previous result from thermistor array measurements in FY ice, the present measurements in FY ice show no conductivity reduction over the top 50 cm. We have reexamined the analysis of these previous array measurements and have identified analytical effects that rendered this analysis unreliable in the presence of high-frequency surface temperature variations and pronounced surface warming and cooling events. We conclude that this apparent near-surface conductivity reduction was an artefact. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
D. J. Pringle H. J. Trodahl T. G. Haskell |
spellingShingle |
D. J. Pringle H. J. Trodahl T. G. Haskell 2006), Direct measurement of sea ice thermal conductivity: No surface reduction |
author_facet |
D. J. Pringle H. J. Trodahl T. G. Haskell |
author_sort |
D. J. Pringle |
title |
2006), Direct measurement of sea ice thermal conductivity: No surface reduction |
title_short |
2006), Direct measurement of sea ice thermal conductivity: No surface reduction |
title_full |
2006), Direct measurement of sea ice thermal conductivity: No surface reduction |
title_fullStr |
2006), Direct measurement of sea ice thermal conductivity: No surface reduction |
title_full_unstemmed |
2006), Direct measurement of sea ice thermal conductivity: No surface reduction |
title_sort |
2006), direct measurement of sea ice thermal conductivity: no surface reduction |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.534.4141 http://www2.gi.alaska.edu/snowice/sea-lake-ice/papers/06PTH.pdf |
geographic |
McMurdo Sound |
geographic_facet |
McMurdo Sound |
genre |
Antarc* Antarctica McMurdo Sound Sea ice |
genre_facet |
Antarc* Antarctica McMurdo Sound Sea ice |
op_source |
http://www2.gi.alaska.edu/snowice/sea-lake-ice/papers/06PTH.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.534.4141 http://www2.gi.alaska.edu/snowice/sea-lake-ice/papers/06PTH.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766097704258109440 |