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Institute of Low Temperature Science >
Physics of Ice Core Records / edited by Takeo Hondoh >
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Air bubbles and air-hydrate crystals in the Vostok ice core
| Title: | Air bubbles and air-hydrate crystals in the Vostok ice core |
| Authors: | Lipenkov, Vladimir Ya. Browse this author |
| Issue Date: | 2000 |
| Publisher: | Hokkaido University Press |
| Journal Title: | Physics of Ice Core Records |
| Start Page: | 327 |
| End Page: | 358 |
| Abstract: | 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. |
| Description: | International Symposium on Physics of Ice Core Records. Shikotsukohan, Hokkaido, Japan, September 14-17, 1998. |
| Conference Name: | International Symposium on Physics of Ice Core Records |
| Conference Place: | Shikotsukohan, Hokkaido |
| Type: | proceedings |
| URI: | http://hdl.handle.net/2115/32474 |
| Appears in Collections: | Physics of Ice Core Records / edited by Takeo Hondoh > Proceedings
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