Paper: Hopcroft et al 2017b

Title: Reduced cooling following future volcanic eruptions

For a fuller description of the paper itself, go to the end of this web page.

Each simulation published in this paper corresponds to a unique 5 or 6 character code on the web pages.
The following table lists the name of the simulation as used in the paper, and the corresponding code name

The webpage gives you the ability to examine the published simulations, but you can also download the raw (netcdf) files to perform your own analysis. Detailed instructions on how to use the webpages and access the data can be found here: Using_BRIDGE_webpages.pdf

You can have make you own analysis and plots by going here

Simulation Name as in PaperSimulation name on web pages
Pre-industrial controlxggvh
Ensemble-mean PI eruptiontddcX
RCP6 ensemble meanxiuzX
Ensemble-mean RCP6 eruptionxisqX
PI atmosphere-only with control SST+icexmpab
PI atmosphere-only with eruption SST+icexmpac
PI atmosphere-only with control SST eruption icexmpaf
RCP6 atmosphere-only with control SST+icexmpad
RCP6 atmosphere-only with eruption SST+icexmpae
RCP6 atmosphere-only with control SST eruption icexmpah


This is a fuller description of paper

This paper reports HadGEM2-ES simulations of a hypothetical future eruption matching the 1815 Tambora eruption, but in the year 2045 and under the RCP6.0 scenario. We find that the eruption-induced cooling is less in the future, because the effective radiative forcing from the eruption is less due to the increase in tropospheric aerosol burden in the future relative to the pre-industrial.

NameHopcroft et al
Brief DescriptionThis paper reports HadGEM2-ES simulations of a hypothetical future eruption matching the 1815 Tambora eruption, but in the year 2045 and under the RCP6.0 scenario. We find that the eruption-induced cooling is less in the future, because the effective radiative forcing from the eruption is less due to the increase in tropospheric aerosol burden in the future relative to the pre-industrial.
Full Author ListPeter O. Hopcroft, Jessy Kandlbauer, Paul J. Valdes and Stephen Sparks
TitleReduced cooling following future volcanic eruptions
Year2018
JournalClimate Dynamics
Volume
Issue
Pages
DOI10.1007/s00382-017-3964-7
Contact's NamePeter O. Hopcroft
Contact's emailp.hopcroft@bham.ac.uk
AbstractVolcanic eruptions are an important influence on decadal to centennial climate variability. Large eruptions lead to the formation of a stratospheric sulphate aerosol layer which can cause short-term global cooling. This response is modulated by feedback processes in the Earth system, but the influence from future warming has not been assessed before. Using Earth System model simulations we find that the eruption-induced cooling is significantly weaker in the future state. This is predominantly due to an increase in planetary albedo caused by increased tropospheric aerosol loading with a contribution from associated changes in cloud properties. The increased albedo of the troposphere reduces the effective volcanic aerosol radiative forcing. Reduced sea-ice coverage and hence feedbacks also contribute over high-latitudes, and an enhanced winter warming signal emerges in the future eruption ensemble. These findings show that the eruption response is a complex function of the environmental conditions, which has implications for the role of eruptions in climate variability in the future and potentially in the past.