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| Titel |
Aerosol impact on seasonal prediction using FIM-Chem-iHYCOM coupled model |
| VerfasserIn |
Shan Sun, Li Zhang, Ravan Ahmadov, Georg Grell |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250147044
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| Publikation (Nr.) |
 EGU/EGU2017-11140.pdf |
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| Zusammenfassung |
| We update on the latest developments and applications of the Flow-following
finite-volume Icosahedral Model (FIM) as it is coupled with Ocean (iHYCOM) and
Chemistry suites of different complexity from the WRF-chem model. This modeling
system is applied to subseasonal to seasonal prediction. The purpose of ongoing
experiments with the FIM-Chem-iHYCOM combination is to investigate the aerosol
impact on the atmospheric and oceanic circulation at the seasonal time scale.
We compare the model sensitivity with various chemistry emissions, including
aerosols, fire and anthropogenic emissions. Additional emphasis of this work is
on the effect of aerosols on cloudiness and precipitation, either directly or
indirectly through changes in SST. To isolate the latter effect, we conduct parallel
experiments with observed SST. The chemistry options include a simple suite with bulk
aerosols only, a more complex approach with gas-phase chemistry, and a package
that has model aerosols as well as Secondary Organic Aerosols (SOA). |
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