Air bubbles and air-hydrate crystals in the Vostok ice core
The geometrical properties of air-bubble and air-hydrate ensembles in the 3310-m deep Vostok core and in other ice cores were studied. The principle results are the following: 1) the size and abundance of air bubbles in polar ice depend on the temperature and accumulation rate prevailing over the ti...
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/32474 2023-05-15T16:38:46+02:00 Air bubbles and air-hydrate crystals in the Vostok ice core Lipenkov, Vladimir Ya. http://hdl.handle.net/2115/32474 eng eng Hokkaido University Press http://hdl.handle.net/2115/32474 International Symposium on Physics of Ice Core Records, Shikotsukohan, Hokkaido 450 proceedings fthokunivhus 2022-11-18T01:01:34Z The geometrical properties of air-bubble and air-hydrate ensembles in the 3310-m deep Vostok core and in other ice cores were studied. The principle results are the following: 1) the size and abundance of air bubbles in polar ice depend on the temperature and accumulation rate prevailing over the time of the snow-ice transformation, 2) the climate signal imposed on the bubble properties at pore close-off is only slightly modified in the course of the bubble-hydrate transition (500–1250 m at present time at Vostok) and in the first, transient, phase of air-hydrate crystal growth (1150–1500 m); as a consequence, the last four glacial-interglacial cycles are resolved in variations of the number and size of air inclusions along the Vostok ice core, and 3) the air-bubble and air-hydrate records from polar ice cores can provide an independent experimental constraint on the temperature-accumulation relations in the past. International Symposium on Physics of Ice Core Records. Shikotsukohan, Hokkaido, Japan, September 14-17, 1998. Conference Object ice core Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
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Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
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fthokunivhus |
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English |
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450 |
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450 Lipenkov, Vladimir Ya. Air bubbles and air-hydrate crystals in the Vostok ice core |
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450 |
description |
The geometrical properties of air-bubble and air-hydrate ensembles in the 3310-m deep Vostok core and in other ice cores were studied. The principle results are the following: 1) the size and abundance of air bubbles in polar ice depend on the temperature and accumulation rate prevailing over the time of the snow-ice transformation, 2) the climate signal imposed on the bubble properties at pore close-off is only slightly modified in the course of the bubble-hydrate transition (500–1250 m at present time at Vostok) and in the first, transient, phase of air-hydrate crystal growth (1150–1500 m); as a consequence, the last four glacial-interglacial cycles are resolved in variations of the number and size of air inclusions along the Vostok ice core, and 3) the air-bubble and air-hydrate records from polar ice cores can provide an independent experimental constraint on the temperature-accumulation relations in the past. International Symposium on Physics of Ice Core Records. Shikotsukohan, Hokkaido, Japan, September 14-17, 1998. |
format |
Conference Object |
author |
Lipenkov, Vladimir Ya. |
author_facet |
Lipenkov, Vladimir Ya. |
author_sort |
Lipenkov, Vladimir Ya. |
title |
Air bubbles and air-hydrate crystals in the Vostok ice core |
title_short |
Air bubbles and air-hydrate crystals in the Vostok ice core |
title_full |
Air bubbles and air-hydrate crystals in the Vostok ice core |
title_fullStr |
Air bubbles and air-hydrate crystals in the Vostok ice core |
title_full_unstemmed |
Air bubbles and air-hydrate crystals in the Vostok ice core |
title_sort |
air bubbles and air-hydrate crystals in the vostok ice core |
publisher |
Hokkaido University Press |
url |
http://hdl.handle.net/2115/32474 |
genre |
ice core |
genre_facet |
ice core |
op_relation |
http://hdl.handle.net/2115/32474 International Symposium on Physics of Ice Core Records, Shikotsukohan, Hokkaido |
_version_ |
1766029100565135360 |