Snowbreeder 5: a Micro-CT device for measuring the snow-microstructure evolution under the simultaneous influence of a temperature gradient and compaction
The instrumented sample holder Snowbreeder 5 is used to investigate the simultaneous influence of settlement on temperature-gradient snow metamorphism in time-lapse micro-computed tomography experiments. So far, experiments have only been done on temperature-gradient snow metamorphism without settle...
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Cambridge University Press
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Online Access: | https://doi.org/10.1017/jog.2016.143 https://doaj.org/article/adc09eb763a34ca8b68b55e934d422e6 |
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ftdoajarticles:oai:doaj.org/article:adc09eb763a34ca8b68b55e934d422e6 2023-05-15T16:57:34+02:00 Snowbreeder 5: a Micro-CT device for measuring the snow-microstructure evolution under the simultaneous influence of a temperature gradient and compaction MAREIKE WIESE MARTIN SCHNEEBELI 2017-04-01T00:00:00Z https://doi.org/10.1017/jog.2016.143 https://doaj.org/article/adc09eb763a34ca8b68b55e934d422e6 EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S002214301600143X/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2016.143 0022-1430 1727-5652 https://doaj.org/article/adc09eb763a34ca8b68b55e934d422e6 Journal of Glaciology, Vol 63, Pp 355-360 (2017) snow snow mechanics snow metamorphism snow microstructure snow physics Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2017 ftdoajarticles https://doi.org/10.1017/jog.2016.143 2023-03-12T01:30:59Z The instrumented sample holder Snowbreeder 5 is used to investigate the simultaneous influence of settlement on temperature-gradient snow metamorphism in time-lapse micro-computed tomography experiments. So far, experiments have only been done on temperature-gradient snow metamorphism without settlement or settlement under isothermal conditions. With the new device we can impose a constant temperature gradient on a snow sample and induce settlement by placing a passive load on top of the snow sample. The weight of the load can be varied, simulating various snow heights on top of the snow sample. Snow-temperature measurements on the passive load are possible due to wireless data transfer via Bluetooth. The temperature gradient is set by controlling the air temperature inside the computer tomograph and by a Peltier element at the bottom of the snow sample. First experiments under isothermal conditions and a constant temperature gradient of 43 K m−1 showed that the settlement was reduced to almost half as soon as a temperature gradient was applied under otherwise almost equal snow conditions. The compactive viscosity in the isothermal experiment was in the range of literature values. Article in Journal/Newspaper Journal of Glaciology Directory of Open Access Journals: DOAJ Articles Peltier ENVELOPE(-63.495,-63.495,-64.854,-64.854) Journal of Glaciology 63 238 355 360 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
snow snow mechanics snow metamorphism snow microstructure snow physics Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
snow snow mechanics snow metamorphism snow microstructure snow physics Environmental sciences GE1-350 Meteorology. Climatology QC851-999 MAREIKE WIESE MARTIN SCHNEEBELI Snowbreeder 5: a Micro-CT device for measuring the snow-microstructure evolution under the simultaneous influence of a temperature gradient and compaction |
topic_facet |
snow snow mechanics snow metamorphism snow microstructure snow physics Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
The instrumented sample holder Snowbreeder 5 is used to investigate the simultaneous influence of settlement on temperature-gradient snow metamorphism in time-lapse micro-computed tomography experiments. So far, experiments have only been done on temperature-gradient snow metamorphism without settlement or settlement under isothermal conditions. With the new device we can impose a constant temperature gradient on a snow sample and induce settlement by placing a passive load on top of the snow sample. The weight of the load can be varied, simulating various snow heights on top of the snow sample. Snow-temperature measurements on the passive load are possible due to wireless data transfer via Bluetooth. The temperature gradient is set by controlling the air temperature inside the computer tomograph and by a Peltier element at the bottom of the snow sample. First experiments under isothermal conditions and a constant temperature gradient of 43 K m−1 showed that the settlement was reduced to almost half as soon as a temperature gradient was applied under otherwise almost equal snow conditions. The compactive viscosity in the isothermal experiment was in the range of literature values. |
format |
Article in Journal/Newspaper |
author |
MAREIKE WIESE MARTIN SCHNEEBELI |
author_facet |
MAREIKE WIESE MARTIN SCHNEEBELI |
author_sort |
MAREIKE WIESE |
title |
Snowbreeder 5: a Micro-CT device for measuring the snow-microstructure evolution under the simultaneous influence of a temperature gradient and compaction |
title_short |
Snowbreeder 5: a Micro-CT device for measuring the snow-microstructure evolution under the simultaneous influence of a temperature gradient and compaction |
title_full |
Snowbreeder 5: a Micro-CT device for measuring the snow-microstructure evolution under the simultaneous influence of a temperature gradient and compaction |
title_fullStr |
Snowbreeder 5: a Micro-CT device for measuring the snow-microstructure evolution under the simultaneous influence of a temperature gradient and compaction |
title_full_unstemmed |
Snowbreeder 5: a Micro-CT device for measuring the snow-microstructure evolution under the simultaneous influence of a temperature gradient and compaction |
title_sort |
snowbreeder 5: a micro-ct device for measuring the snow-microstructure evolution under the simultaneous influence of a temperature gradient and compaction |
publisher |
Cambridge University Press |
publishDate |
2017 |
url |
https://doi.org/10.1017/jog.2016.143 https://doaj.org/article/adc09eb763a34ca8b68b55e934d422e6 |
long_lat |
ENVELOPE(-63.495,-63.495,-64.854,-64.854) |
geographic |
Peltier |
geographic_facet |
Peltier |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology, Vol 63, Pp 355-360 (2017) |
op_relation |
https://www.cambridge.org/core/product/identifier/S002214301600143X/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2016.143 0022-1430 1727-5652 https://doaj.org/article/adc09eb763a34ca8b68b55e934d422e6 |
op_doi |
https://doi.org/10.1017/jog.2016.143 |
container_title |
Journal of Glaciology |
container_volume |
63 |
container_issue |
238 |
container_start_page |
355 |
op_container_end_page |
360 |
_version_ |
1766049125019680768 |