 |
| Titel |
The Lagrangian chemistry and transport model ATLAS: simulation and validation of stratospheric chemistry and ozone loss in the winter 1999/2000 |
| VerfasserIn |
I. Wohltmann, R. Lehmann, M. Rex |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1991-959X
|
| Digitales Dokument |
URL |
| Erschienen |
In: Geoscientific Model Development ; 3, no. 2 ; Nr. 3, no. 2 (2010-11-01), S.585-601 |
| Datensatznummer |
250000957
|
| Publikation (Nr.) |
 copernicus.org/gmd-3-585-2010.pdf |
|
|
|
|
|
| Zusammenfassung |
| ATLAS is a new global Lagrangian Chemistry and Transport Model
(CTM), which includes a stratospheric chemistry scheme with 46
active species, 171 reactions, heterogeneous chemistry on
polar stratospheric clouds and a Lagrangian denitrification
module. Lagrangian (trajectory-based) models have several
important advantages over conventional Eulerian models,
including the absence of spurious numerical diffusion,
efficient code parallelization and no limitation of the
largest time step by the Courant-Friedrichs-Lewy
criterion. This work describes and validates the stratospheric
chemistry scheme of the model. Stratospheric chemistry is
simulated with ATLAS for the Arctic winter 1999/2000, with
a focus on polar ozone depletion and denitrification. The
simulations are used to validate the chemistry module in
comparison with measurements of the SOLVE/THESEO 2000
campaign. A Lagrangian denitrification module, which is based
on the simulation of the nucleation, sedimentation and growth
of a large number of polar stratospheric cloud particles, is
used to model the substantial denitrification that occured in
this winter. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|