SOCOL activities at IAC and PMOD/WRC
1
J. Anet, F. Arfeuille, S. Brönnimann, M. Calisto, T. Egorova, N. Hochmuth, C. Hoyle, T. Peter, E. Rozanov, W. Schmutz,
M. Schraner, A. Shapiro, J. Sheng, A. Stenke, D. Weisenstein
IACETH
Chemistry-Climate Model SOCOL
2
T, wind, H2O
O3, H2O,CH4, N2O, CFCs
Het
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hem
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TroposphericAerosols
StratosphericAerosols
Prescribed SST/SICMPI-Ocean ModelMixed Layer Ocean
CO, NOx emissionssurface, lightning, aircraft
Dynamics • MA-ECHAM4 / MA-ECHAM5• L39 (0.01 hPa), T31 / T42• ECHAM radiation scheme
(& shortwave: Lyman-α,
Schumann-Runge, Hartley)
Chemistry (MEZON)• Homogeneous and heterogeneous
ozone chemistry• Tropospheric background chem.
& project-specific extensions• Calculated every 2 hours
CO2, CH4, N2O, CFCs, Halons
IACETH
Solar Radiation
Year without summer 1816 (F. Arfeuille)
Investigate the climatic impacts of the strongest volcanic eruptions of the last 700 years. Tools:
- AER 2D aerosol microphysics model- CCM SOCOL vs2 (MEZON coupled to ECHAM4)- SOCOL runs include stratospheric aerosols taken from AER model output. Solar
spectral irradiance from Dalton minimum reconstruction. Sea Surface Temperatures from coral/tree rings reconstruction.
- T31L39 resolution. Approach:
- Ensemble runs around 1815-1818 with different volcanic scenarios, SST forcing, …
IACETH 3
The middle atmosphere response to the short-term variability of the solar activity(A.P. Shapiro)
To understand the variability of the middle atmosphere state on monthly time scales and evaluate the contribution of the different driving processes.
SNF funded Tools:
- CCM SOCOL vs2 Approach:
- Short-term (≈1 year) and medium-term (≈10 years) ensemble simulations of the atmosphere driven by daily spectral solar irradiance. Analysis of the satellite and ground-based data.
Status:- All runs have been completed, the analysis is ongoing.
IACETH 4
Nowcasting of the middle atmosphere state (T. Egorova)
To understand the influence of short-term variability of the solar irradiance and energetic particles on the middle atmosphere.
Learn how to manage near-real-time operation and visualization. FP7 funded, SOTERIA (Solar-TERrestrial Investigations and Archives) Tools:
- CCM SOCOL vs2 extended to include a complete representation of ion chemistry. Approach:
- Ensemble simulations of the middle atmosphere state driven by near-real-time information about spectral solar irradiance and energetic particles.
Status:- Operational service from March 2011
IACETH 5
FUPSOL(J. Anet, autumn 2010)
Investigate influence of the sun on global climate from past (1600) to future (2200) Tools:
- SOCOL vs3 (MEZON coupled to ECHAM5) coupled to MPI-OM via OASIS coupler- Includes particle precipitation from solar eruptions (SPE), solar wind (LEE) and
galactic cosmic rays (GCR)- T31L39 resolution for atmosphere, GR30 (around 3°) for ocean
Approach:- 600 yrs control simulation 1600-2200- Ensemble runs during Dalton Minimum and 21th century with and w/o volcanic
eruptions Status:
- Coupling with MPI-OM ongoing
IACETH 6
IASSA (Impact of Artificial Stratospheric Sulfate Aerosols investigated
by means of a coupled aerosol-chemistry-climate-model)(J. Sheng, autumn 2010)
To evaluate the expected efficiency and safety of geoengineering by injection of sulfur containing gases
SNF funded Tools:
- CCM SOCOL vs3 extended to include interactive/slab ocean and a complete representation of sulfate aerosol
Approach:- Long-term (≈100 years) ensemble simulations of the atmosphere driven by different
scenarios of sulfate injections. Status:
- model is in preparation
IACETH 7
MAIOLICA(A. Stenke, spring 2009)
Investigate feedback processes between terrestrial biosphere and global climate, including anthropogenic land use changes
Special focus on methane CCES funded Tools:
- SOCOL vs3 with extended tropospheric chemistry: condensed isoprene mechanism- Coupled to dynamic global vegetation model LPJ
Approach:- Long-term simulations (1900-2100) with and w/o interactive vegetation
Status:- Coupling with LPJ ongoing
IACETH 8
