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| Titel |
HIGH RESOLUTION DYNAMICAL-CHEMICAL MODELLING OF THE UPPER TROPOSPHERE AND LOWER STRATOSPHERE REGION OVER EUROPE: GEM-AC MODEL SIMULATIONS FOR CURRENT AND FUTURE CLIMATE |
| VerfasserIn |
Magdalena Porebska, Joanna Struzewska, Jacek Kaminski |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250086668
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| Publikation (Nr.) |
 EGU/EGU2014-575.pdf |
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| Zusammenfassung |
| Upper troposphere and lower stratosphere (UTLS) region is a thin layer around the
Tropopause. Perturbation of the chemical composition in the UTLS region can impact
physical and dynamical processes which can lead to changes in cloudiness, precipitation,
radiative forcing, stratosphere-troposphere exchange and zonal flow.
The reported research aims at supplementing the existing knowledge by a systematic
modeling study for current and future climate scenarios. The tool used here is the GEM-AC
model which is an on-line and interactive tropospheric and stratospheric chemistry model
with unique capability to run in a global variable resolution where uniform portion of the
computational grid can be placed over the region of interest. In this study, a global variable
resolution grid will be used with horizontal resolution 0.3 x 0.3 deg over Europe. The model
will be integrated on 80 hybrid levels with the top at 0.1 hPa and ~500 m vertical resolution
in the UTLS region.
Analysis will focus on changes in the concentration of chemical species and families such
as: O3, NOx, NOy, BrOx, ClOx, HOx and CH4 in the UTLS region. Analysis of zonal and
monthly averaged vertical profiles and cross-section of chemical components for current
and future climate and their differences due to climate changes will be presented. |
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