Mountain-wave-induced polar stratospheric clouds and their representation in the global chemistry model ICON-ART
Polar stratospheric clouds (PSCs) are a driver for ozone depletion in the lower polar stratosphere. They provide surface for heterogeneous reactions activating chlorine and bromine reservoir species during the polar night. The large-scale effects of PSCs are represented by means of parameterisations...
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European Geosciences Union (EGU)
2021
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ftdatacite:10.5445/ir/1000134436 2023-05-15T13:54:59+02:00 Mountain-wave-induced polar stratospheric clouds and their representation in the global chemistry model ICON-ART Weimer, Michael Buchmüller, Jennifer Hoffmann, Lars Kirner, Ole Luo, Beiping Ruhnke, Roland Steiner, Michael Tritscher, Ines Braesicke, Peter 2021 PDF https://dx.doi.org/10.5445/ir/1000134436 https://publikationen.bibliothek.kit.edu/1000134436 en eng European Geosciences Union (EGU) Creative Commons Namensnennung 4.0 International Open Access info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/deed.de CC-BY Text article-journal Journal Article ScholarlyArticle 2021 ftdatacite https://doi.org/10.5445/ir/1000134436 2021-11-05T12:55:41Z Polar stratospheric clouds (PSCs) are a driver for ozone depletion in the lower polar stratosphere. They provide surface for heterogeneous reactions activating chlorine and bromine reservoir species during the polar night. The large-scale effects of PSCs are represented by means of parameterisations in current global chemistry–climate models, but one process is still a challenge: the representation of PSCs formed locally in conjunction with unresolved mountain waves. In this study, we investigate direct simulations of PSCs formed by mountain waves with the ICOsahedral Nonhydrostatic modelling framework (ICON) with its extension for Aerosols and Reactive Trace gases (ART) including local grid refinements (nesting) with two-way interaction. Here, the nesting is set up around the Antarctic Peninsula, which is a well-known hot spot for the generation of mountain waves in the Southern Hemisphere. We compare our model results with satellite measurements of PSCs from the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) and gravity wave observations of the Atmospheric Infrared Sounder (AIRS). For a mountain wave event from 19 to 29 July 2008 we find similar structures of PSCs as well as a fairly realistic development of the mountain wave between the satellite data and the ICON-ART simulations in the Antarctic Peninsula nest. We compare a global simulation without nesting with the nested configuration to show the benefits of adding the nesting. Although the mountain waves cannot be resolved explicitly at the global resolution used (about 160 km), their effect from the nested regions (about 80 and 40 km) on the global domain is represented. Thus, we show in this study that the ICON-ART model has the potential to bridge the gap between directly resolved mountain-wave-induced PSCs and their representation and effect on chemistry at coarse global resolutions. Text Antarc* Antarctic Antarctic Peninsula polar night DataCite Metadata Store (German National Library of Science and Technology) Antarctic The Antarctic Antarctic Peninsula |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
language |
English |
description |
Polar stratospheric clouds (PSCs) are a driver for ozone depletion in the lower polar stratosphere. They provide surface for heterogeneous reactions activating chlorine and bromine reservoir species during the polar night. The large-scale effects of PSCs are represented by means of parameterisations in current global chemistry–climate models, but one process is still a challenge: the representation of PSCs formed locally in conjunction with unresolved mountain waves. In this study, we investigate direct simulations of PSCs formed by mountain waves with the ICOsahedral Nonhydrostatic modelling framework (ICON) with its extension for Aerosols and Reactive Trace gases (ART) including local grid refinements (nesting) with two-way interaction. Here, the nesting is set up around the Antarctic Peninsula, which is a well-known hot spot for the generation of mountain waves in the Southern Hemisphere. We compare our model results with satellite measurements of PSCs from the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) and gravity wave observations of the Atmospheric Infrared Sounder (AIRS). For a mountain wave event from 19 to 29 July 2008 we find similar structures of PSCs as well as a fairly realistic development of the mountain wave between the satellite data and the ICON-ART simulations in the Antarctic Peninsula nest. We compare a global simulation without nesting with the nested configuration to show the benefits of adding the nesting. Although the mountain waves cannot be resolved explicitly at the global resolution used (about 160 km), their effect from the nested regions (about 80 and 40 km) on the global domain is represented. Thus, we show in this study that the ICON-ART model has the potential to bridge the gap between directly resolved mountain-wave-induced PSCs and their representation and effect on chemistry at coarse global resolutions. |
format |
Text |
author |
Weimer, Michael Buchmüller, Jennifer Hoffmann, Lars Kirner, Ole Luo, Beiping Ruhnke, Roland Steiner, Michael Tritscher, Ines Braesicke, Peter |
spellingShingle |
Weimer, Michael Buchmüller, Jennifer Hoffmann, Lars Kirner, Ole Luo, Beiping Ruhnke, Roland Steiner, Michael Tritscher, Ines Braesicke, Peter Mountain-wave-induced polar stratospheric clouds and their representation in the global chemistry model ICON-ART |
author_facet |
Weimer, Michael Buchmüller, Jennifer Hoffmann, Lars Kirner, Ole Luo, Beiping Ruhnke, Roland Steiner, Michael Tritscher, Ines Braesicke, Peter |
author_sort |
Weimer, Michael |
title |
Mountain-wave-induced polar stratospheric clouds and their representation in the global chemistry model ICON-ART |
title_short |
Mountain-wave-induced polar stratospheric clouds and their representation in the global chemistry model ICON-ART |
title_full |
Mountain-wave-induced polar stratospheric clouds and their representation in the global chemistry model ICON-ART |
title_fullStr |
Mountain-wave-induced polar stratospheric clouds and their representation in the global chemistry model ICON-ART |
title_full_unstemmed |
Mountain-wave-induced polar stratospheric clouds and their representation in the global chemistry model ICON-ART |
title_sort |
mountain-wave-induced polar stratospheric clouds and their representation in the global chemistry model icon-art |
publisher |
European Geosciences Union (EGU) |
publishDate |
2021 |
url |
https://dx.doi.org/10.5445/ir/1000134436 https://publikationen.bibliothek.kit.edu/1000134436 |
geographic |
Antarctic The Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula polar night |
genre_facet |
Antarc* Antarctic Antarctic Peninsula polar night |
op_rights |
Creative Commons Namensnennung 4.0 International Open Access info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/deed.de |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5445/ir/1000134436 |
_version_ |
1766261186803793920 |