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          Institute: MPI für Meteorologie     Collection: Atmosphere in the Earth System     Display Documents



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ID: 256476.0, MPI für Meteorologie / Atmosphere in the Earth System
The aerosol-climate model ECHAM5-HAM
Authors:Stier, Philip; Feichter, Johann; Kinne, Stefan; Kloster, Silvia; Vignati, E.; Wilson, J.; Ganzeveld, L.; Tegen, I.; Werner, M.; Balkanski, Y.; Schulz, M.; Boucher, O.; Minikin, A.; Petzold, A.
Language:English
Date of Publication (YYYY-MM-DD):2005-03-31
Title of Journal:Atmospheric Chemistry and Physics
Journal Abbrev.:Atmos. Chem. Phys.
Volume:5
Start Page:1125
End Page:1156
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:The aerosol-climate modelling system ECHAM5-HAM is introduced. It is based on a flexible microphysical approach and, as the number of externally imposed parameters is minimised, allows the application in a wide range of climate regimes. ECHAM5-HAM predicts the evolution of an ensemble of microphysically interacting internally- and externally-mixed aerosol populations as well as their size-distribution and composition. The size-distribution is represented by a superposition of log-normal modes. In the current setup, the major global aerosol compounds sulfate (SU), black carbon (BC), particulate organic matter (POM), sea salt (SS), and mineral dust (DU) are included. The simulated global annual mean aerosol burdens (lifetimes) for the year 2000 are for SU: 0.80 Tg(S) (3.9 days), for BC: 0.11 Tg (5.4 days), for POM: 0.99 Tg (5.4 days), for SS: 10.5 Tg (0.8 days), and for DU: 8.28 Tg (4.6 days). An extensive evaluation with in-situ and remote sensing measurements underscores that the model results are generally in good agreement with observations of the global aerosol system. The simulated global annual mean aerosol optical depth (AOD) is with 0.14 in excellent agreement with an estimate derived from AERONET measurements (0.14) and a composite derived from MODIS-MISR satellite retrievals (0.16). Regionally, the deviations are not negligible. However, the main patterns of AOD attributable to anthropogenic activity are reproduced.
External Publication Status:published
Document Type:Article
Communicated by:Carola Kauhs
Affiliations:MPI für Meteorologie/Atmosphere in the Earth System
MPI für Meteorologie/IMPRS Earth System Modelling
External Affiliations:Commiss European Communities, Joint Res Ctr, Inst Environm & Sustainabil, I-21020 Ispra, Italy.; Max Planck Inst Chem, D-6500 Mainz, Germany.; Max Planck Inst Biogeochem, Jena, Germany.; Lab Sci Climat & Environm, Gif Sur Yvette, France.; USTL, CNRS, Villeneuve Dascq, France.; German Aerosp Res DLR, Oberpfaffenhofen, Germany.
Identifiers:ISI:000228059900001
ISSN:1680-7324
URL:http://www.copernicus.org/EGU/acp/acp/5/1125/acp-5...
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