The Interactive Stratospheric Aerosol Model Intercomparison Project (ISA-MIP): Motivation and experimental design

TIMMRECK, C., MANN, G.W., AQUILA, V., HOMMEL, R., LEE, Lindsay, SCHMIDT, A., BRÜHL, C., CARN, S., CHIN, M., DHOMSE, S.S., DIEHL, T., ENGLISH, J.M., MILLS, M.J., NEELY, R., SHENG, J., TOOHEY, M. and WEISENSTEIN, D. (2018). The Interactive Stratospheric Aerosol Model Intercomparison Project (ISA-MIP): Motivation and experimental design. Geoscientific Model Development, 11 (7), 2581-2608.

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Open Access URL: https://gmd.copernicus.org/articles/11/2581/2018/ (Published version)
Link to published version:: https://doi.org/10.5194/gmd-11-2581-2018
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    Abstract

    © 2018 Author(s). The Stratospheric Sulfur and its Role in Climate (SSiRC) Interactive Stratospheric Aerosol Model Intercomparison Project (ISA-MIP) explores uncertainties in the processes that connect volcanic emission of sulfur gas species and the radiative forcing associated with the resulting enhancement of the stratospheric aerosol layer. The central aim of ISA-MIP is to constrain and improve interactive stratospheric aerosol models and reduce uncertainties in the stratospheric aerosol forcing by comparing results of standardized model experiments with a range of observations. In this paper we present four co-ordinated inter-model experiments designed to investigate key processes which influence the formation and temporal development of stratospheric aerosol in different time periods of the observational record. The Background (BG) experiment will focus on microphysics and transport processes under volcanically quiescent conditions, when the stratospheric aerosol is controlled by the transport of aerosols and their precursors from the troposphere to the stratosphere. The Transient Aerosol Record (TAR) experiment will explore the role of small-to moderate-magnitude volcanic eruptions, anthropogenic sulfur emissions, and transport processes over the period 1998-2012 and their role in the warming hiatus. Two further experiments will investigate the stratospheric sulfate aerosol evolution after major volcanic eruptions. The Historical Eruptions SO2 Emission Assessment (HErSEA) experiment will focus on the uncertainty in the initial emission of recent large-magnitude volcanic eruptions, while the Pinatubo Emulation in Multiple models (PoEMS) experiment will provide a comprehensive uncertainty analysis of the radiative forcing from the 1991 Mt Pinatubo eruption.

    Item Type: Article
    Uncontrolled Keywords: 04 Earth Sciences
    Identification Number: https://doi.org/10.5194/gmd-11-2581-2018
    Page Range: 2581-2608
    SWORD Depositor: Symplectic Elements
    Depositing User: Symplectic Elements
    Date Deposited: 12 May 2021 14:12
    Last Modified: 12 May 2021 14:15
    URI: http://shura.shu.ac.uk/id/eprint/26693

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