Insights from Antarctica on volcanic forcing during the Common Era
By M. Sigl, J. McConnell, M. Toohey, M. Curran, Sarah B. Das, R. Edwards, E. Isaksson, K. Kawamura, S. Kipfstuhl, K. Krüger and 6 more. 2014
170 citations recorded by the source corpus.
Assessments of climate sensitivity to projected greenhouse gas concentrations underpin environmental policy decisions, with such assessments often based on model simulations of climate during recent centuries and millennia1, 2, 3. These simulations depend critically on accurate records of past aerosol forcing from global-scale volcanic eruptions, reconstructed from measurements of sulphate deposition in ice cores4, 5, 6. Non-uniform transport and deposition of volcanic fallout mean that multiple records from a wide array of ice cores must be combined to create accurate reconstructions. Here we re-evaluated the record of volcanic sulphate deposition using a much more extensive array of Antarctic ice cores. In our new reconstruction, many additional records have been added and dating of previously published records corrected through precise synchronization to the annually dated West Antarctic Ice Sheet Divide ice core7, improving and extending the record throughout the Common Era. Whereas agreement with existing reconstructions is excellent after 1500, we found a substantially different history of volcanic aerosol deposition before 1500; for example, global aerosol forcing values from some of the largest eruptions (for example, 1257 and 1458) previously were overestimated by 20–30% and others underestimated by 20–50%.
Subfields: Atmospheric Science, Global and Planetary Change
View Paper: https://www.semanticscholar.org/paper/2d19f2d4854caf60efd8d5717fd2690ab06ebea3
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In Atmospheric Science
- Gabriele C. Hegerl
- C. Timmreck
- A. Robock
- A. Schmidt
- Eugene V. Rozanov
- M. Marchand
- E. Gerber
- M. Mills
In Global and Planetary Change
Citations in the corpus
- The Model Intercomparison Project on the climatic response to Volcanic forcing (VolMIP) : experimental design and forcing input data for CMIP6 (2016, background): “…of volcanic eruptions are limited, with the 1991 eruption of Mt. Pinatubo being the best documented event (e.g., Minnis et al., 1993), forcing characteristics must often be reconstructed based on indirect evidence such as ice-core measurements (e.g., Devine et al., 1984; Sigl et al., 2014).”