Frost flowers in the laboratory: Growth, characteristics, aerosol, and the underlying sea ice
In the laboratory, we have investigated the growth and composition of frost flowers. Their ionic composition has shown little difference from those of field measurements. Young frost flowers grown on sea ice are saline, leading us to speculate that wicking occurs continually during their growth on s...
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ftdartmouthcoll:oai:digitalcommons.dartmouth.edu:facoa-1102 2024-09-09T19:25:41+00:00 Frost flowers in the laboratory: Growth, characteristics, aerosol, and the underlying sea ice Roscoe, H K Brooks, B Jackson, A V Smith, M H Walker, S J Obbard, Rachel Wolff, E W 2011-06-17T07:00:00Z https://digitalcommons.dartmouth.edu/facoa/103 https://doi.org/10.1029/2010JD015144 http://onlinelibrary.wiley.com/doi/10.1029/2010JD015144/epdf unknown Dartmouth Digital Commons https://digitalcommons.dartmouth.edu/facoa/103 doi:10.1029/2010JD015144 http://onlinelibrary.wiley.com/doi/10.1029/2010JD015144/epdf Dartmouth Scholarship Earth Sciences Engineering text 2011 ftdartmouthcoll https://doi.org/10.1029/2010JD015144 2024-06-21T04:42:58Z In the laboratory, we have investigated the growth and composition of frost flowers. Their ionic composition has shown little difference from those of field measurements. Young frost flowers grown on sea ice are saline, leading us to speculate that wicking occurs continually during their growth on sea ice. The surface area of frost flowers is only a little larger than the area of ice underneath, consistent with recent field measurements from the Arctic. Time-lapse photography has allowed us to observe the extreme mobility of freshly forming sea ice, at the stage at which the mush has become rather solid, and continuing while the flowers grow. This mobility results in new brine being expelled to the surface, which therefore remains wet. During various stages of frost flower growth, we observed their freshly formed dendritic parts rapidly diminishing in size after contacting the surface, consistent with repeated wicking. Frost flowers proved to be very stable in the presence of wind, such that no aerosol was observed when wind was blown across them in the laboratory chamber. This is consistent with recent field observations of frost flowers coexisting with wind-blown snow. Text Arctic Sea ice Dartmouth Digital Commons (Dartmouth College) Arctic Journal of Geophysical Research 116 D12 |
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topic |
Earth Sciences Engineering |
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Earth Sciences Engineering Roscoe, H K Brooks, B Jackson, A V Smith, M H Walker, S J Obbard, Rachel Wolff, E W Frost flowers in the laboratory: Growth, characteristics, aerosol, and the underlying sea ice |
topic_facet |
Earth Sciences Engineering |
description |
In the laboratory, we have investigated the growth and composition of frost flowers. Their ionic composition has shown little difference from those of field measurements. Young frost flowers grown on sea ice are saline, leading us to speculate that wicking occurs continually during their growth on sea ice. The surface area of frost flowers is only a little larger than the area of ice underneath, consistent with recent field measurements from the Arctic. Time-lapse photography has allowed us to observe the extreme mobility of freshly forming sea ice, at the stage at which the mush has become rather solid, and continuing while the flowers grow. This mobility results in new brine being expelled to the surface, which therefore remains wet. During various stages of frost flower growth, we observed their freshly formed dendritic parts rapidly diminishing in size after contacting the surface, consistent with repeated wicking. Frost flowers proved to be very stable in the presence of wind, such that no aerosol was observed when wind was blown across them in the laboratory chamber. This is consistent with recent field observations of frost flowers coexisting with wind-blown snow. |
format |
Text |
author |
Roscoe, H K Brooks, B Jackson, A V Smith, M H Walker, S J Obbard, Rachel Wolff, E W |
author_facet |
Roscoe, H K Brooks, B Jackson, A V Smith, M H Walker, S J Obbard, Rachel Wolff, E W |
author_sort |
Roscoe, H K |
title |
Frost flowers in the laboratory: Growth, characteristics, aerosol, and the underlying sea ice |
title_short |
Frost flowers in the laboratory: Growth, characteristics, aerosol, and the underlying sea ice |
title_full |
Frost flowers in the laboratory: Growth, characteristics, aerosol, and the underlying sea ice |
title_fullStr |
Frost flowers in the laboratory: Growth, characteristics, aerosol, and the underlying sea ice |
title_full_unstemmed |
Frost flowers in the laboratory: Growth, characteristics, aerosol, and the underlying sea ice |
title_sort |
frost flowers in the laboratory: growth, characteristics, aerosol, and the underlying sea ice |
publisher |
Dartmouth Digital Commons |
publishDate |
2011 |
url |
https://digitalcommons.dartmouth.edu/facoa/103 https://doi.org/10.1029/2010JD015144 http://onlinelibrary.wiley.com/doi/10.1029/2010JD015144/epdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
Dartmouth Scholarship |
op_relation |
https://digitalcommons.dartmouth.edu/facoa/103 doi:10.1029/2010JD015144 http://onlinelibrary.wiley.com/doi/10.1029/2010JD015144/epdf |
op_doi |
https://doi.org/10.1029/2010JD015144 |
container_title |
Journal of Geophysical Research |
container_volume |
116 |
container_issue |
D12 |
_version_ |
1809895442078498816 |