EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Antarctic climate response to large volcanic eruptions in the historical period

Natália Silva1, Ilana Wainer1, and Myriam Khodri2
Natália Silva et al.
  • 1University of Sao Paulo, Oceanographic Institute, Department of Physical, Chemical and Geological Oceanography, Brazil (
  • 2LOCEAN, IRD/IPSL, Sorbonne University, Paris, France

Large tropical volcanic eruptions are well known to change the global climate and maybe even interfere with some natural modes of variability such as El Niño Southern Oscillation. As they inject a high amount of sulfur gas into the stratosphere, sulfate aerosol loading increases a few months after the eruption, which is then transported globally. Large tropical events may, therefore, affect extratropical climate variability. For example, temperature changes have been identified in Antarctica after the Pinatubo eruption in 1991, as warming in the peninsula. However, a causal link with the eruption and, more generally, a possible influence of large tropical volcanic eruptions on the Southern Hemisphere climate are still open questions. In this study we aim to focus on the five biggest eruptions of the historical period (Krakatau — Aug/1883, Santa María — Oct/1902, Mt Agung — Mar/1963, El Chichón — Apr/1982 and Pinatubo — Jun/1991) by assessing two CMIP6 class models (IPSL-CM6A-LR Large Ensemble and BESM) and two Reanalyses (NOAA 20th Century Reanalysis and ECMWF's ERA 20th Century).

How to cite: Silva, N., Wainer, I., and Khodri, M.: Antarctic climate response to large volcanic eruptions in the historical period, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-291,, 2019

This abstract will not be presented.