The Model Intercomparison Project on the climatic response to Volcanic forcing (VolMIP): experimental design and forcing input data for CMIP6

Davide Zanchettin 1 Myriam Khodri 2 Claudia Timmreck 3 Matthew Toohey 4 Anja Schmidt 5 Edwin P. Gerber 6 Gabriele Hegerl 7 Alan Robock 8 Francesco S. R. Pausata 9, 10 William T. Ball 11, 12 Suzanne E. Bauer 13, 14 Slimane Bekki 15 Sandip S. Dhomse 5 Allegra N. Legrande 13, 14 Graham W. Mann 16, 5 Lauren Marshall 5 Michael Mills 17 Marion Marchand 15 Ulrike Niemeier 3 Virginie Poulain 2 Eugene Rozanov 11 Angelo Rubino 1 Andrea Stenke 12 Kostas Tsigaridis 13, 14 Fiona Tummon 12
1 Department of Environmental Sciences, Informatics and Statistics [Venezia]
2 PARVATI - Processus de la variabilité climatique tropicale et impacts
LOCEAN - Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques
3 MPI-M - Max Planck Institute for Meteorology
4 IFM-GEOMAR - Leibniz-Institut für Meereswissenschaften
5 ICAS - Institute for Climate and Atmospheric Science [Leeds]
6 CIMS - Courant Institute of Mathematical Sciences [New York]
7 School of Geosciences [Edinburgh]
8 Department of Environmental Sciences [New Brunswick]
9 MISU - Department of Meteorology [Stockholm]
10 Bolin Centre for Climate Research
11 PMOD/WRC - Physikalisch-Meteorologisches Observatorium Davos/World Radiation Center
12 IAC - Institute for Atmospheric and Climate Science [Zürich]
13 GISS - NASA Goddard Institute for Space Studies
14 CCSR - Center for Climate Systems Research [New York]
15 STRATO - LATMOS
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
16 NCAS - National Centre for Atmospheric Science [Leeds]
17 Atmospheric Chemistry Division [Boulder]
Abstract : The enhancement of the stratospheric aerosol layer by volcanic eruptions induces a complex set of responses causing global and regional climate effects on a broad range of timescales. Uncertainties exist regarding the climatic response to strong volcanic forcing identified in coupled climate simulations that contributed to the fifth phase of the Coupled Model Intercomparison Project (CMIP5). In order to better understand the sources of these model diversities, the Model Intercomparison Project on the climatic response to Volcanic forcing (VolMIP) has defined a coordinated set of idealized volcanic perturbation experiments to be carried out in alignment with the CMIP6 protocol. VolMIP provides a common stratospheric aerosol data set for each experiment to minimize differences in the applied volcanic forcing. It defines a set of initial conditions to assess how internal climate variability contributes to determining the response. VolMIP will assess to what extent volcanically forced responses of the coupled ocean–atmosphere system are robustly simulated by state-of-the-art coupled climate models and identify the causes that limit robust simulated behavior, especially differences in the treatment of physical processes. This paper illustrates the design of the idealized volcanic perturbation experiments in the VolMIP protocol and describes the common aerosol forcing input data sets to be used.
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Submitted on : Sunday, September 18, 2016 - 7:13:01 PM
Last modification on : Tuesday, February 18, 2020 - 3:30:25 PM

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Davide Zanchettin, Myriam Khodri, Claudia Timmreck, Matthew Toohey, Anja Schmidt, et al.. The Model Intercomparison Project on the climatic response to Volcanic forcing (VolMIP): experimental design and forcing input data for CMIP6. Geoscientific Model Development, European Geosciences Union, 2016, 9 (8), pp.2701-2719. ⟨10.5194/gmd-9-2701-2016⟩. ⟨insu-01368011⟩

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