Effects of forcing differences and initial conditions on inter-model agreement in the VolMIP volc-pinatubo-full experiment

Zanchettin, Davide; Timmreck, Claudia; Khodri, Myriam; Schmidt, Anja; Toohey, Matthew; Abe, Manabu; Bekki, Slimane; Cole, Jason; Fang, Shih-Wei; Feng, Wuhu; Hegerl, Gabriele; Johnson, Ben; Lebas, Nicolas; LeGrande, Allegra N.; Mann, Graham W.; Marshall, Lauren; Rieger, Landon; Robock, Alan; Rubinetti, Sara; Tsigaridis, Kostas; Weierbach, Helen

doi:https://doi.org/10.5194/gmd-15-2265-2022

Articles | Volume 15, issue 5

Geosci. Model Dev., 15, 2265–2292, 2022

https://doi.org/10.5194/gmd-15-2265-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: The Model Intercomparison Project on the climatic response...

Geosci. Model Dev., 15, 2265–2292, 2022

https://doi.org/10.5194/gmd-15-2265-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 5

Model experiment description paper 16 Mar 2022

Model experiment description paper | 16 Mar 2022

Effects of forcing differences and initial conditions on inter-model agreement in the VolMIP volc-pinatubo-full experiment

Davide Zanchettin et al.

Supplement

https://doi.org/10.5194/gmd-15-2265-2022-supplement

Data sets

VolMIP piControl field-average GL TR NH SH ENSO NAO monthly time series D. Zanchettin, C. Timmreck, M. Khodri, J. Cole, K. Tsigaridis, M. Abe, and G. Mann https://cera-www.dkrz.de/WDCC/ui/Compact.jsp?acronym=VolMIP_pC

VolMIP volc-pinatubo-full field-average GL TR NH SH ENSO NAO monthly time series D. Zanchettin, C. Timmreck, M. Khodri, J. Cole, K. Tsigaridis, M. Abe, and G. Mann https://doi.org/10.26050/WDCC/VolMIP_volc

Model code and software

The Canadian Earth System Model (CanESM) - v5.0.3 (v5.0.3) N. C. Swart, J. Cole, S. Kharin, M. Lazare, J. Scinocca, N. Gillett, J. Anstey, V. Arora, J. Christian, S. Hanna, Y. Jiao, W. Lee, F. Majaess, O. Saenko, C. Seiler, C. Seinen, A. Shao, L. Solheim, K. von Salzen, D. Yang, and B. Winter https://doi.org/10.5281/zenodo.3251114

Core code of MIROC-ES2L for CMIP6 VolMIP experiments M. Abe https://doi.org/10.5281/zenodo.5975701

Short summary

This paper provides metadata and first analyses of the volc-pinatubo-full experiment of CMIP6-VolMIP. Results from six Earth system models reveal significant differences in radiative flux anomalies that trace back to different implementations of volcanic forcing. Surface responses are in contrast overall consistent across models, reflecting the large spread due to internal variability. A second phase of VolMIP shall consider both aspects toward improved protocol for volc-pinatubo-full.