Articles | Volume 20, issue 2
https://doi.org/10.5194/cp-20-313-2024
https://doi.org/10.5194/cp-20-313-2024
Research article
 | 
09 Feb 2024
Research article |  | 09 Feb 2024

State-dependent impact of major volcanic eruptions observed in ice-core records of the last glacial period

Johannes Lohmann, Jiamei Lin, Bo M. Vinther, Sune O. Rasmussen, and Anders Svensson

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Short summary
We present the first attempt to constrain the climatic impact of volcanic eruptions with return periods of hundreds of years by the oxygen isotope records of Greenland and Antarctic ice cores covering the last glacial period. A clear multi-annual volcanic cooling signal is seen, but its absolute magnitude is subject to the unknown glacial sensitivity of the proxy. Different proxy signals after eruptions during cooler versus warmer glacial stages may reflect a state-dependent climate response.