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The Formation of Brine Drainage Features in Young Sea Ice
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| Zeitschriftentitel: | Journal of Glaciology |
|---|---|
| Personen und Körperschaften: | , |
| In: | Journal of Glaciology, 14, 1975, 70, S. 137-154 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
International Glaciological Society
|
| Schlagwörter: |
| author_facet |
Ingolf Eide, Lars Martin, Seelye Ingolf Eide, Lars Martin, Seelye |
|---|---|
| author |
Ingolf Eide, Lars Martin, Seelye |
| spellingShingle |
Ingolf Eide, Lars Martin, Seelye Journal of Glaciology The Formation of Brine Drainage Features in Young Sea Ice Earth-Surface Processes |
| author_sort |
ingolf eide, lars |
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Ingolf Eide, Lars Martin, Seelye 0022-1430 1727-5652 International Glaciological Society Earth-Surface Processes http://dx.doi.org/10.3189/s0022143000013460 <jats:p>Laboratory experiments on the growth of sea ice in a very thin plastic tank filled with salt water, cooled from above and insulated with thermopane, clearly show the formation and development of brine drainage channels. The sea-water freezing cell is 0.3 cm thick by 35 cm wide by 50 cm deep; the thermopane insulation permits the ice interior to be photographed. Experimentally, we observe that vertical channels with diameters of 1 to 3 mm and associated smaller feeder channels extend throughout the ice sheet. Close examination of the brine channels show that their diameter at the ice-water interface is much narrower than higher up in the ice, so that the channel has a “neck” at the interface. Further, oscillations occur in the brine channels, in that brine flows out of the channel followed by a flow of sea-water up into the channel. Theoretically, a qualitative theory based on the difference in pressure head between the brine inside the ice and the sea-water provides a consistent explanation for the formation of the channels, and the onset of a convective instability explains the existence of the neck. Finally, an analysis based on the presence of the brine-channel neck provides an explanation for the observed oscillations.</jats:p> The Formation of Brine Drainage Features in Young Sea Ice Journal of Glaciology |
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International Glaciological Society, 1975 |
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International Glaciological Society, 1975 |
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0022-1430 1727-5652 |
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International Glaciological Society |
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Journal of Glaciology |
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| title |
The Formation of Brine Drainage Features in Young Sea Ice |
| title_unstemmed |
The Formation of Brine Drainage Features in Young Sea Ice |
| title_full |
The Formation of Brine Drainage Features in Young Sea Ice |
| title_fullStr |
The Formation of Brine Drainage Features in Young Sea Ice |
| title_full_unstemmed |
The Formation of Brine Drainage Features in Young Sea Ice |
| title_short |
The Formation of Brine Drainage Features in Young Sea Ice |
| title_sort |
the formation of brine drainage features in young sea ice |
| topic |
Earth-Surface Processes |
| url |
http://dx.doi.org/10.3189/s0022143000013460 |
| publishDate |
1975 |
| physical |
137-154 |
| description |
<jats:p>Laboratory experiments on the growth of sea ice in a very thin plastic tank filled with salt water, cooled from above and insulated with thermopane, clearly show the formation and development of brine drainage channels. The sea-water freezing cell is 0.3 cm thick by 35 cm wide by 50 cm deep; the thermopane insulation permits the ice interior to be photographed. Experimentally, we observe that vertical channels with diameters of 1 to 3 mm and associated smaller feeder channels extend throughout the ice sheet. Close examination of the brine channels show that their diameter at the ice-water interface is much narrower than higher up in the ice, so that the channel has a “neck” at the interface. Further, oscillations occur in the brine channels, in that brine flows out of the channel followed by a flow of sea-water up into the channel. Theoretically, a qualitative theory based on the difference in pressure head between the brine inside the ice and the sea-water provides a consistent explanation for the formation of the channels, and the onset of a convective instability explains the existence of the neck. Finally, an analysis based on the presence of the brine-channel neck provides an explanation for the observed oscillations.</jats:p> |
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| author | Ingolf Eide, Lars, Martin, Seelye |
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| description | <jats:p>Laboratory experiments on the growth of sea ice in a very thin plastic tank filled with salt water, cooled from above and insulated with thermopane, clearly show the formation and development of brine drainage channels. The sea-water freezing cell is 0.3 cm thick by 35 cm wide by 50 cm deep; the thermopane insulation permits the ice interior to be photographed. Experimentally, we observe that vertical channels with diameters of 1 to 3 mm and associated smaller feeder channels extend throughout the ice sheet. Close examination of the brine channels show that their diameter at the ice-water interface is much narrower than higher up in the ice, so that the channel has a “neck” at the interface. Further, oscillations occur in the brine channels, in that brine flows out of the channel followed by a flow of sea-water up into the channel. Theoretically, a qualitative theory based on the difference in pressure head between the brine inside the ice and the sea-water provides a consistent explanation for the formation of the channels, and the onset of a convective instability explains the existence of the neck. Finally, an analysis based on the presence of the brine-channel neck provides an explanation for the observed oscillations.</jats:p> |
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| imprint | International Glaciological Society, 1975 |
| imprint_str_mv | International Glaciological Society, 1975 |
| institution | DE-Ch1, DE-L229, DE-D275, DE-Bn3, DE-Brt1, DE-Zwi2, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14 |
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| physical | 137-154 |
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| series | Journal of Glaciology |
| source_id | 49 |
| spelling | Ingolf Eide, Lars Martin, Seelye 0022-1430 1727-5652 International Glaciological Society Earth-Surface Processes http://dx.doi.org/10.3189/s0022143000013460 <jats:p>Laboratory experiments on the growth of sea ice in a very thin plastic tank filled with salt water, cooled from above and insulated with thermopane, clearly show the formation and development of brine drainage channels. The sea-water freezing cell is 0.3 cm thick by 35 cm wide by 50 cm deep; the thermopane insulation permits the ice interior to be photographed. Experimentally, we observe that vertical channels with diameters of 1 to 3 mm and associated smaller feeder channels extend throughout the ice sheet. Close examination of the brine channels show that their diameter at the ice-water interface is much narrower than higher up in the ice, so that the channel has a “neck” at the interface. Further, oscillations occur in the brine channels, in that brine flows out of the channel followed by a flow of sea-water up into the channel. Theoretically, a qualitative theory based on the difference in pressure head between the brine inside the ice and the sea-water provides a consistent explanation for the formation of the channels, and the onset of a convective instability explains the existence of the neck. Finally, an analysis based on the presence of the brine-channel neck provides an explanation for the observed oscillations.</jats:p> The Formation of Brine Drainage Features in Young Sea Ice Journal of Glaciology |
| spellingShingle | Ingolf Eide, Lars, Martin, Seelye, Journal of Glaciology, The Formation of Brine Drainage Features in Young Sea Ice, Earth-Surface Processes |
| title | The Formation of Brine Drainage Features in Young Sea Ice |
| title_full | The Formation of Brine Drainage Features in Young Sea Ice |
| title_fullStr | The Formation of Brine Drainage Features in Young Sea Ice |
| title_full_unstemmed | The Formation of Brine Drainage Features in Young Sea Ice |
| title_short | The Formation of Brine Drainage Features in Young Sea Ice |
| title_sort | the formation of brine drainage features in young sea ice |
| title_unstemmed | The Formation of Brine Drainage Features in Young Sea Ice |
| topic | Earth-Surface Processes |
| url | http://dx.doi.org/10.3189/s0022143000013460 |