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Insights from Antarctica on volcanic forcing during the Common Era

Author

Listed:
  • Michael Sigl

    (Desert Research Institute)

  • Joseph R. McConnell

    (Desert Research Institute
    National Institute of Polar Research, Research Organization of Information and Systems)

  • Matthew Toohey

    (GEOMAR Helmholtz Centre for Ocean Research Kiel)

  • Mark Curran

    (Australian Antarctic Division and Antarctic Climate and Ecosystems Cooperative Research Centre)

  • Sarah B. Das

    (Woods Hole Oceanographic Institution)

  • Ross Edwards

    (Curtin University)

  • Elisabeth Isaksson

    (Norwegian Polar Institute)

  • Kenji Kawamura

    (National Institute of Polar Research, Research Organization of Information and Systems
    JAMSTEC)

  • Sepp Kipfstuhl

    (Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research)

  • Kirstin Krüger

    (GEOMAR Helmholtz Centre for Ocean Research Kiel
    University of Oslo)

  • Lawrence Layman

    (Desert Research Institute)

  • Olivia J. Maselli

    (Desert Research Institute)

  • Yuko Motizuki

    (RIKEN Nishina Center)

  • Hideaki Motoyama

    (National Institute of Polar Research, Research Organization of Information and Systems)

  • Daniel R. Pasteris

    (Desert Research Institute)

  • Mirko Severi

    (University of Florence)

Abstract

Historical aerosol forcing from large volcanic eruptions are reconstructed from sulphate deposition measured in ice cores. This study updates these records by using a more extensive collection of Antarctic ice cores, which provide new records and accurate dating of published records. The results show that prior to the year 1500 the reconstructions were either previously overestimating global aerosol forcing by 20–30% or underestimating it by 20–50%. This has implications for estimates of climate sensitivity.

Suggested Citation

  • Michael Sigl & Joseph R. McConnell & Matthew Toohey & Mark Curran & Sarah B. Das & Ross Edwards & Elisabeth Isaksson & Kenji Kawamura & Sepp Kipfstuhl & Kirstin Krüger & Lawrence Layman & Olivia J. Ma, 2014. "Insights from Antarctica on volcanic forcing during the Common Era," Nature Climate Change, Nature, vol. 4(8), pages 693-697, August.
    • Handle: RePEc:nat:natcli:v:4:y:2014:i:8:d:10.1038_nclimate2293
    DOI: 10.1038/nclimate2293
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