Deep Ice Cores in Antarctica - an archive for climate change in the past.


Contact
hoerter [ at ] awi-bremerhaven.de

Abstract

The Antarctic ice sheet archives climate information on temperature variation and composition of the atmosphere possibly about 800.000 years back in time. Several deep ice cores were recovered in the past decades and deep ice coring is still ongoing, e.g. in the European Project for Ice Coring in Antarctica (EPICA). Deep ice coring needs and encourages international cooperation for the reason of logistics as well as science. The Vostok ice core is still the reference core for the past 420.000 years and new data from the European cores at Dome C and in Dronning Maud Land or from the Japanese core on Dome F are linked to the Vostok records of stable isotope content and gas content. Deposits of big volcanic events in the past can be seen in the cores at a coinciding depth. Overall it looks like whether the main climatic changes took place simultaneously throughout Antarctica. The youngest core from Dronning Maud Land, where we find the highest snow accumulation rate of all drilling sites on the Antarctic plateau, promises detailed insight in the temporal course of the last transition from glacial to Holocene climate. In addition it should give the best link to the Greenland ice cores, as this core comes from the Atlantic sector of Antarctica.



Item Type
Conference (Invited talk)
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Divisions
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Peer revision
Not peer-reviewed
Publication Status
Published
Event Details
2nd Malaysian International Seminar on Antarctica: Global Laboratory for Scientific and International cooperation, Penang, MalaysiaMay 2004..
Eprint ID
11693
Cite as
Oerter, H. (2004): Deep Ice Cores in Antarctica - an archive for climate change in the past. , 2nd Malaysian International Seminar on Antarctica: Global Laboratory for Scientific and International cooperation, Penang, MalaysiaMay 2004. .


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