In:
Geoscientific Model Development, Copernicus GmbH, Vol. 11, No. 7 ( 2018-07-05), p. 2581-2608
Abstract:
Abstract. 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.
Type of Medium:
Online Resource
ISSN:
1991-9603
DOI:
10.5194/gmd-11-2581-2018
DOI:
10.5194/gmd-11-2581-2018-supplement
Language:
English
Publisher:
Copernicus GmbH
Publication Date:
2018
detail.hit.zdb_id:
2456725-5
