Rapid oscillations in Vostok and GRIP ice cores
International audience We investigate the spectral properties of climatic times series derived from two recent ice cores in Greenland and East Antarctica. We find that the signals behave in a similar way in the high frequency part of their spectra. The rapid oscillations found in the GRIP ice core w...
Published in: | Geophysical Research Letters |
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Main Authors: | , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
1995
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Subjects: | |
Online Access: | https://hal.archives-ouvertes.fr/hal-03334868 https://hal.archives-ouvertes.fr/hal-03334868/document https://hal.archives-ouvertes.fr/hal-03334868/file/grl1995Yiou2179.pdf https://doi.org/10.1029/95GL02014 |
Summary: | International audience We investigate the spectral properties of climatic times series derived from two recent ice cores in Greenland and East Antarctica. We find that the signals behave in a similar way in the high frequency part of their spectra. The rapid oscillations found in the GRIP ice core were closely correlated to Heinrich Events. A comparable spectral feature is detected in the Vostok ice core. We discuss the possibilities of connections between the two hemispheres and proper ice sheet oscillations in the light of simple oscillating climate models. |
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