Synopsis

VolMIP is a protocol-driven international project aiming at coordinating the activities of different Research Institutes involved in numerical climate modelling focused on a multi-model assessment of climate models' performance under strong volcanic forcing conditions.

Tier 1 (core) experiments

Tier 1(core) Tier 2 Tier 3
Name Description Ensemble Size Years (per sim) Total years Gaps of knowledge being addressed with this experiment
volc-long-eq Idealized equatorial eruption corresponding to an initial emission of 56.2 Tg of SO2. This eruption has a magnitude roughly corresponding to the 1815 Tambora eruption, the largest tropical eruption of the last five centuries, which was linked to the "year without a summer" in 1816. 9 20 180 Uncertainty in the climate response to strong volcanic eruptions, with focus on coupled ocean -atmosphere feedbacks and interannual to decadal global as well as regional responses.The mismatch between reconstructed and simulated climate res- ponses to historical strong volcanic eruptions, with focus on the role of simulated background internal climate variability.
volc-pinatubo-full 1991 Pinatubo forcing as used in the CMIP6 historical simulations. Requires special diagnostics of radiative and latent heating rates. A large number of ensemble members is required to address internal atmospheric variability. 25 3 75 Uncertainty in the climate response to strong volcanic eruptions with focus on short-term response. Robustness of volcanic imprints on Northern Hemisphere's winter climate and of associated dynamics.
volc-pinatubo-surf As volc-pinatubo-full, but with prescribed perturbation to the shortwave flux to mimic the attenuation of solar radiation by volcanic aerosols. 25 3 75 Mechanism(s) underlying the dynamical atmospheric response to large volcanic eruptions, in particular in Northern Hemisphere’s winters. The experiment considers only the effect of volcanically induced surface cooling. Complimentary experiment to volc-pinatubo-strat.
volc-pinatubo-strat volc-pinatubo-fullAs , but with prescribed perturbation to the total (LW+SW) radiative heating rate. 25 3 75 Mechanism(s) underlying the dynamical atmospheric response to large volcanic eruptions, in particular in Northern Hemisphere’s winter. The experiment considers only the effect of volcanically-induced stratospheric heating. Complimentary experiment to volc-pinatubo-surf.

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Published on  04.12.2017