Imaging air volume fraction in sea ice using non-destructive X-ray tomography.
Although the presence of a gas phase in sea ice creates the potential for gas exchange with the atmosphere, the distribution of gas bubbles and transport of gases within the sea ice are still poorly understood. Currently no straightforward technique exists to measure the vertical distribution of air...
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Online Access: | https://espace.inrs.ca/id/eprint/4131/ https://espace.inrs.ca/id/eprint/4131/1/P2955.pdf https://doi.org/10.5194/tc-10-1125-2016 |
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ftinrsquebec:oai:espace.inrs.ca:4131 2023-05-15T18:16:28+02:00 Imaging air volume fraction in sea ice using non-destructive X-ray tomography. Crabeck, Odile Galley, Ryan James Delille, Bruno Else, Brent G. T. Geilfus, Nicolas-Xavier Lemes, Marcos Des Roches, Mathieu Francus, Pierre Tison, Jean-Louis Rysgaard, Søren 2016 application/pdf https://espace.inrs.ca/id/eprint/4131/ https://espace.inrs.ca/id/eprint/4131/1/P2955.pdf https://doi.org/10.5194/tc-10-1125-2016 en eng https://espace.inrs.ca/id/eprint/4131/1/P2955.pdf Crabeck, Odile, Galley, Ryan James, Delille, Bruno, Else, Brent G. T., Geilfus, Nicolas-Xavier, Lemes, Marcos, Des Roches, Mathieu, Francus, Pierre, Tison, Jean-Louis et Rysgaard, Søren (2016). Imaging air volume fraction in sea ice using non-destructive X-ray tomography. Cryosphere , vol. 10 , nº 3. p. 1125-1145. DOI:10.5194/tc-10-1125-2016 <https://doi.org/10.5194/tc-10-1125-2016>. doi:10.5194/tc-10-1125-2016 air bubble air-ice interaction air-sea interaction permeability porosity sea ice vertical distribution volume X-ray gas exchange Article Évalué par les pairs 2016 ftinrsquebec https://doi.org/10.5194/tc-10-1125-2016 2023-02-10T11:42:53Z Although the presence of a gas phase in sea ice creates the potential for gas exchange with the atmosphere, the distribution of gas bubbles and transport of gases within the sea ice are still poorly understood. Currently no straightforward technique exists to measure the vertical distribution of air volume fraction in sea ice. Here, we present a new fast and non-destructive X-ray computed tomography technique to quantify the air volume fraction and produce separate images of air volume inclusions in sea ice. The technique was performed on relatively thin (4–22 cm) sea ice collected from an experimental ice tank. While most of the internal layers showed air volume fractions < 2 %, the ice–air interface (top 2 cm) systematically showed values up to 5 %. We suggest that the air volume fraction is a function of both the bulk ice gas saturation factor and the brine volume fraction. We differentiate micro bubbles (Ø < 1 mm), large bubbles (1 mm < Ø < 5 mm) and macro bubbles (Ø > 5 mm). While micro bubbles were the most abundant type of gas bubbles, most of the air porosity observed resulted from the presence of large and macro bubbles. The ice texture (granular and columnar) as well as the permeability state of ice are important factors controlling the air volume fraction. The technique developed is suited for studies related to gas transport and bubble migration. Article in Journal/Newspaper Sea ice Institut national de la recherche scientifique, Québec: Espace INRS The Cryosphere 10 3 1125 1145 |
institution |
Open Polar |
collection |
Institut national de la recherche scientifique, Québec: Espace INRS |
op_collection_id |
ftinrsquebec |
language |
English |
topic |
air bubble air-ice interaction air-sea interaction permeability porosity sea ice vertical distribution volume X-ray gas exchange |
spellingShingle |
air bubble air-ice interaction air-sea interaction permeability porosity sea ice vertical distribution volume X-ray gas exchange Crabeck, Odile Galley, Ryan James Delille, Bruno Else, Brent G. T. Geilfus, Nicolas-Xavier Lemes, Marcos Des Roches, Mathieu Francus, Pierre Tison, Jean-Louis Rysgaard, Søren Imaging air volume fraction in sea ice using non-destructive X-ray tomography. |
topic_facet |
air bubble air-ice interaction air-sea interaction permeability porosity sea ice vertical distribution volume X-ray gas exchange |
description |
Although the presence of a gas phase in sea ice creates the potential for gas exchange with the atmosphere, the distribution of gas bubbles and transport of gases within the sea ice are still poorly understood. Currently no straightforward technique exists to measure the vertical distribution of air volume fraction in sea ice. Here, we present a new fast and non-destructive X-ray computed tomography technique to quantify the air volume fraction and produce separate images of air volume inclusions in sea ice. The technique was performed on relatively thin (4–22 cm) sea ice collected from an experimental ice tank. While most of the internal layers showed air volume fractions < 2 %, the ice–air interface (top 2 cm) systematically showed values up to 5 %. We suggest that the air volume fraction is a function of both the bulk ice gas saturation factor and the brine volume fraction. We differentiate micro bubbles (Ø < 1 mm), large bubbles (1 mm < Ø < 5 mm) and macro bubbles (Ø > 5 mm). While micro bubbles were the most abundant type of gas bubbles, most of the air porosity observed resulted from the presence of large and macro bubbles. The ice texture (granular and columnar) as well as the permeability state of ice are important factors controlling the air volume fraction. The technique developed is suited for studies related to gas transport and bubble migration. |
format |
Article in Journal/Newspaper |
author |
Crabeck, Odile Galley, Ryan James Delille, Bruno Else, Brent G. T. Geilfus, Nicolas-Xavier Lemes, Marcos Des Roches, Mathieu Francus, Pierre Tison, Jean-Louis Rysgaard, Søren |
author_facet |
Crabeck, Odile Galley, Ryan James Delille, Bruno Else, Brent G. T. Geilfus, Nicolas-Xavier Lemes, Marcos Des Roches, Mathieu Francus, Pierre Tison, Jean-Louis Rysgaard, Søren |
author_sort |
Crabeck, Odile |
title |
Imaging air volume fraction in sea ice using non-destructive X-ray tomography. |
title_short |
Imaging air volume fraction in sea ice using non-destructive X-ray tomography. |
title_full |
Imaging air volume fraction in sea ice using non-destructive X-ray tomography. |
title_fullStr |
Imaging air volume fraction in sea ice using non-destructive X-ray tomography. |
title_full_unstemmed |
Imaging air volume fraction in sea ice using non-destructive X-ray tomography. |
title_sort |
imaging air volume fraction in sea ice using non-destructive x-ray tomography. |
publishDate |
2016 |
url |
https://espace.inrs.ca/id/eprint/4131/ https://espace.inrs.ca/id/eprint/4131/1/P2955.pdf https://doi.org/10.5194/tc-10-1125-2016 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_relation |
https://espace.inrs.ca/id/eprint/4131/1/P2955.pdf Crabeck, Odile, Galley, Ryan James, Delille, Bruno, Else, Brent G. T., Geilfus, Nicolas-Xavier, Lemes, Marcos, Des Roches, Mathieu, Francus, Pierre, Tison, Jean-Louis et Rysgaard, Søren (2016). Imaging air volume fraction in sea ice using non-destructive X-ray tomography. Cryosphere , vol. 10 , nº 3. p. 1125-1145. DOI:10.5194/tc-10-1125-2016 <https://doi.org/10.5194/tc-10-1125-2016>. doi:10.5194/tc-10-1125-2016 |
op_doi |
https://doi.org/10.5194/tc-10-1125-2016 |
container_title |
The Cryosphere |
container_volume |
10 |
container_issue |
3 |
container_start_page |
1125 |
op_container_end_page |
1145 |
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1766190091564220416 |