Solidification effects of snowfall on sea-ice freeze-up: results from an onsite experimental study
Although the effects of snow during sea-ice growth have been investigated for sea ice which is thick enough to accommodate dry snow, those for thin sea ice have not been paid much attention due to the difficulty in observing them. Observations are complicated by the presence of slush and its subsequ...
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Cambridge University Press
2020
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Online Access: | https://doi.org/10.1017/aog.2020.49 https://doaj.org/article/5b9aed8a2c9744b28e3910935cc3bc09 |
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ftdoajarticles:oai:doaj.org/article:5b9aed8a2c9744b28e3910935cc3bc09 2023-05-15T13:29:31+02:00 Solidification effects of snowfall on sea-ice freeze-up: results from an onsite experimental study Takenobu Toyota Takashi Ono Tomonori Tanikawa Pat Wongpan Daiki Nomura 2020-12-01T00:00:00Z https://doi.org/10.1017/aog.2020.49 https://doaj.org/article/5b9aed8a2c9744b28e3910935cc3bc09 EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S026030552000049X/type/journal_article https://doaj.org/toc/0260-3055 https://doaj.org/toc/1727-5644 doi:10.1017/aog.2020.49 0260-3055 1727-5644 https://doaj.org/article/5b9aed8a2c9744b28e3910935cc3bc09 Annals of Glaciology, Vol 61, Pp 299-308 (2020) Crystal alignments freeze-up process snowfall effect surface heat budget thermodynamic ice growth model thin sea ice Meteorology. Climatology QC851-999 article 2020 ftdoajarticles https://doi.org/10.1017/aog.2020.49 2023-03-12T01:31:55Z Although the effects of snow during sea-ice growth have been investigated for sea ice which is thick enough to accommodate dry snow, those for thin sea ice have not been paid much attention due to the difficulty in observing them. Observations are complicated by the presence of slush and its subsequent freeze-up, and the surface heat budget might be sensitive to the additional ice thickness. An onsite short-term land fast sea-ice freeze-up experiment in the Saroma-ko Lagoon, Hokkaido, Japan was carried out to examine the effects of snowfall on the structure and surface heat budget of thin sea ice, based on observational results and a 1-D thermodynamic model. We found that snowfall contributes to the solidification of the surface slush layer, contributing ice thickness that is comparable to the snowfall amount and affecting the crystal texture significantly. On the other hand, the basal ice growth rate and turbulent heat flux were not significantly affected, being <3.1 × 10−8 m s−1 and 3 W m−2, respectively. This finding may validate the omission in past studies of snow effect in estimating ice production rates in polynyas and has implications about the reconstruction of growth history from sample analysis. Article in Journal/Newspaper Annals of Glaciology Sea ice Directory of Open Access Journals: DOAJ Articles Annals of Glaciology 61 83 299 308 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Crystal alignments freeze-up process snowfall effect surface heat budget thermodynamic ice growth model thin sea ice Meteorology. Climatology QC851-999 |
spellingShingle |
Crystal alignments freeze-up process snowfall effect surface heat budget thermodynamic ice growth model thin sea ice Meteorology. Climatology QC851-999 Takenobu Toyota Takashi Ono Tomonori Tanikawa Pat Wongpan Daiki Nomura Solidification effects of snowfall on sea-ice freeze-up: results from an onsite experimental study |
topic_facet |
Crystal alignments freeze-up process snowfall effect surface heat budget thermodynamic ice growth model thin sea ice Meteorology. Climatology QC851-999 |
description |
Although the effects of snow during sea-ice growth have been investigated for sea ice which is thick enough to accommodate dry snow, those for thin sea ice have not been paid much attention due to the difficulty in observing them. Observations are complicated by the presence of slush and its subsequent freeze-up, and the surface heat budget might be sensitive to the additional ice thickness. An onsite short-term land fast sea-ice freeze-up experiment in the Saroma-ko Lagoon, Hokkaido, Japan was carried out to examine the effects of snowfall on the structure and surface heat budget of thin sea ice, based on observational results and a 1-D thermodynamic model. We found that snowfall contributes to the solidification of the surface slush layer, contributing ice thickness that is comparable to the snowfall amount and affecting the crystal texture significantly. On the other hand, the basal ice growth rate and turbulent heat flux were not significantly affected, being <3.1 × 10−8 m s−1 and 3 W m−2, respectively. This finding may validate the omission in past studies of snow effect in estimating ice production rates in polynyas and has implications about the reconstruction of growth history from sample analysis. |
format |
Article in Journal/Newspaper |
author |
Takenobu Toyota Takashi Ono Tomonori Tanikawa Pat Wongpan Daiki Nomura |
author_facet |
Takenobu Toyota Takashi Ono Tomonori Tanikawa Pat Wongpan Daiki Nomura |
author_sort |
Takenobu Toyota |
title |
Solidification effects of snowfall on sea-ice freeze-up: results from an onsite experimental study |
title_short |
Solidification effects of snowfall on sea-ice freeze-up: results from an onsite experimental study |
title_full |
Solidification effects of snowfall on sea-ice freeze-up: results from an onsite experimental study |
title_fullStr |
Solidification effects of snowfall on sea-ice freeze-up: results from an onsite experimental study |
title_full_unstemmed |
Solidification effects of snowfall on sea-ice freeze-up: results from an onsite experimental study |
title_sort |
solidification effects of snowfall on sea-ice freeze-up: results from an onsite experimental study |
publisher |
Cambridge University Press |
publishDate |
2020 |
url |
https://doi.org/10.1017/aog.2020.49 https://doaj.org/article/5b9aed8a2c9744b28e3910935cc3bc09 |
genre |
Annals of Glaciology Sea ice |
genre_facet |
Annals of Glaciology Sea ice |
op_source |
Annals of Glaciology, Vol 61, Pp 299-308 (2020) |
op_relation |
https://www.cambridge.org/core/product/identifier/S026030552000049X/type/journal_article https://doaj.org/toc/0260-3055 https://doaj.org/toc/1727-5644 doi:10.1017/aog.2020.49 0260-3055 1727-5644 https://doaj.org/article/5b9aed8a2c9744b28e3910935cc3bc09 |
op_doi |
https://doi.org/10.1017/aog.2020.49 |
container_title |
Annals of Glaciology |
container_volume |
61 |
container_issue |
83 |
container_start_page |
299 |
op_container_end_page |
308 |
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1766001031450198016 |