Articles | Volume 14, issue 6
Research article
18 Jun 2018
Research article |  | 18 Jun 2018

Assessing the impact of large volcanic eruptions of the last millennium (850–1850 CE) on Australian rainfall regimes

Stephanie A. P. Blake, Sophie C. Lewis, Allegra N. LeGrande, and Ron L. Miller

Related authors

Evaluating the dendroclimatological potential of blue intensity on multiple conifer species from Tasmania and New Zealand
Rob Wilson, Kathy Allen, Patrick Baker, Gretel Boswijk, Brendan Buckley, Edward Cook, Rosanne D'Arrigo, Dan Druckenbrod, Anthony Fowler, Margaux Grandjean, Paul Krusic, and Jonathan Palmer
Biogeosciences, 18, 6393–6421,,, 2021
Short summary

Related subject area

Subject: Feedback and Forcing | Archive: Modelling only | Timescale: Decadal-Seasonal
On the phenomenon of the blue sun
Nellie Wullenweber, Anna Lange, Alexei Rozanov, and Christian von Savigny
Clim. Past, 17, 969–983,,, 2021
Short summary
10Be in late deglacial climate simulated by ECHAM5-HAM – Part 2: Isolating the solar signal from 10Be deposition
U. Heikkilä, X. Shi, S. J. Phipps, and A. M. Smith
Clim. Past, 10, 687–696,,, 2014

Cited articles

Adams, J. B., Mann, M. E., and Ammann C. M.: Proxy evidence for an El Niño-like response to volcanic forcing, Nature, 426, 274–278,, 2003. 
Anchukaitis, K. J., Buckley, B. M., Cook, E. R., Cook, B. I., Arrigo, R. D. D., and Ammann, C. M.: Influence of volcanic eruptions on the climate of the Asian monsoon region, Geophys. Res. Lett., 37, L22703,, 2010. 
Ashok, K., Guan, Z., and Yamagata, T.: Influence of the Indian Ocean dipole on the Australian winter rainfall, Geophys. Res. Lett., 30, 15,, 2003 
Brown, J., Lynch, A. H., and Marshall, A. G.: Variability of the Indian Ocean Dipole in coupled model paleoclimate simulations, J. Geophys. Res., 114, D11105,, 2009. 
Cheung, A. N. and Abram, N. J.: Indian Ocean Dipole variability during the Late 13th C, Final Report for EMSC3050 Special Topics Research Project, 2016. 
Short summary
We studied the impact of the six largest tropical eruptions in reference to Australian precipitation, the Indian Ocean Dipole (IOD), and El Niño–Southern Oscillation (ENSO). Volcanic forcing increased the likelihood of El Niños and positive IODs (pIOD) and caused positive rainfall anomalies over north-west (NW) and south-east (SE) Australia. Larger sulfate loading caused more persistent pIOD and El Niños, enhanced precipitation over NW Australia, and dampened precipitation over SE Australia.