Inclusion of mountain-wave-induced cooling for the formation of PSCs over the Antarctic Peninsula in a chemistry-climate model
An important source of polar stratospheric clouds (PSCs), which play a crucial role in controlling polar stratospheric ozone depletion, is from the temperature fluctuations induced by mountain waves. However, this formation mechanism is usually missing in chemistry–climate models because these tempe...
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European Geosciences Union
2016
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ftubkarlsruhe:oai:EVASTAR-Karlsruhe.de:1000058101 2023-05-15T13:44:40+02:00 Inclusion of mountain-wave-induced cooling for the formation of PSCs over the Antarctic Peninsula in a chemistry-climate model Orr, A. Hosking, J. S. Hoffmann, L. Keeble, J. Dean, S. M. Roscoe, H. K. Abraham, N. L. Vosper, S. Braesicke, P. 2016-08-15 application/pdf https://publikationen.bibliothek.kit.edu/1000058101 https://publikationen.bibliothek.kit.edu/1000058101/4419741 https://doi.org/10.5445/IR/1000058101 http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:swb:90-581015 eng eng European Geosciences Union info:eu-repo/semantics/altIdentifier/wos/000351170000019 info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-15-1071-2015 info:eu-repo/semantics/altIdentifier/issn/1680-7316 info:eu-repo/semantics/altIdentifier/issn/1680-7324 https://publikationen.bibliothek.kit.edu/1000058101 https://publikationen.bibliothek.kit.edu/1000058101/4419741 https://doi.org/10.5445/IR/1000058101 http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:swb:90-581015 https://creativecommons.org/licenses/by/3.0/de/ info:eu-repo/semantics/openAccess CC-BY Atmospheric chemistry and physics, 15 (2), 1071-1086 ISSN: 1680-7316, 1680-7324 ddc:550 Earth sciences info:eu-repo/classification/ddc/550 doc-type:article Text info:eu-repo/semantics/article article info:eu-repo/semantics/publishedVersion 2016 ftubkarlsruhe https://doi.org/10.5445/IR/1000058101 https://doi.org/10.5194/acp-15-1071-2015 2022-03-23T18:30:14Z An important source of polar stratospheric clouds (PSCs), which play a crucial role in controlling polar stratospheric ozone depletion, is from the temperature fluctuations induced by mountain waves. However, this formation mechanism is usually missing in chemistry–climate models because these temperature fluctuations are neither resolved nor parameterised. Here, we investigate the representation of stratospheric mountain-wave-induced temperature fluctuations by the UK Met Office Unified Model (UM) at climate scale and mesoscale against Atmospheric Infrared Sounder satellite observations for three case studies over the Antarctic Peninsula. At a high horizontal resolution (4 km) the regional mesoscale configuration of the UM correctly simulates the magnitude, timing, and location of the measured temperature fluctuations. By comparison, at a low horizontal resolution (2.5° × 3.75°) the global climate configuration fails to resolve such disturbances. However, it is demonstrated that the temperature fluctuations computed by a mountain wave parameterisation scheme inserted into the climate configuration (which computes the temperature fluctuations due to unresolved mountain waves) are in relatively good agreement with the mesoscale configuration responses for two of the three case studies. The parameterisation was used to include the simulation of mountain-wave-induced PSCs in the global chemistry–climate configuration of the UM. A subsequent sensitivity study demonstrated that regional PSCs increased by up to 50% during July over the Antarctic Peninsula following the inclusion of the local mountain-wave-induced cooling ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula KITopen (Karlsruhe Institute of Technologie) Antarctic Antarctic Peninsula The Antarctic |
institution |
Open Polar |
collection |
KITopen (Karlsruhe Institute of Technologie) |
op_collection_id |
ftubkarlsruhe |
language |
English |
topic |
ddc:550 Earth sciences info:eu-repo/classification/ddc/550 |
spellingShingle |
ddc:550 Earth sciences info:eu-repo/classification/ddc/550 Orr, A. Hosking, J. S. Hoffmann, L. Keeble, J. Dean, S. M. Roscoe, H. K. Abraham, N. L. Vosper, S. Braesicke, P. Inclusion of mountain-wave-induced cooling for the formation of PSCs over the Antarctic Peninsula in a chemistry-climate model |
topic_facet |
ddc:550 Earth sciences info:eu-repo/classification/ddc/550 |
description |
An important source of polar stratospheric clouds (PSCs), which play a crucial role in controlling polar stratospheric ozone depletion, is from the temperature fluctuations induced by mountain waves. However, this formation mechanism is usually missing in chemistry–climate models because these temperature fluctuations are neither resolved nor parameterised. Here, we investigate the representation of stratospheric mountain-wave-induced temperature fluctuations by the UK Met Office Unified Model (UM) at climate scale and mesoscale against Atmospheric Infrared Sounder satellite observations for three case studies over the Antarctic Peninsula. At a high horizontal resolution (4 km) the regional mesoscale configuration of the UM correctly simulates the magnitude, timing, and location of the measured temperature fluctuations. By comparison, at a low horizontal resolution (2.5° × 3.75°) the global climate configuration fails to resolve such disturbances. However, it is demonstrated that the temperature fluctuations computed by a mountain wave parameterisation scheme inserted into the climate configuration (which computes the temperature fluctuations due to unresolved mountain waves) are in relatively good agreement with the mesoscale configuration responses for two of the three case studies. The parameterisation was used to include the simulation of mountain-wave-induced PSCs in the global chemistry–climate configuration of the UM. A subsequent sensitivity study demonstrated that regional PSCs increased by up to 50% during July over the Antarctic Peninsula following the inclusion of the local mountain-wave-induced cooling ... |
format |
Article in Journal/Newspaper |
author |
Orr, A. Hosking, J. S. Hoffmann, L. Keeble, J. Dean, S. M. Roscoe, H. K. Abraham, N. L. Vosper, S. Braesicke, P. |
author_facet |
Orr, A. Hosking, J. S. Hoffmann, L. Keeble, J. Dean, S. M. Roscoe, H. K. Abraham, N. L. Vosper, S. Braesicke, P. |
author_sort |
Orr, A. |
title |
Inclusion of mountain-wave-induced cooling for the formation of PSCs over the Antarctic Peninsula in a chemistry-climate model |
title_short |
Inclusion of mountain-wave-induced cooling for the formation of PSCs over the Antarctic Peninsula in a chemistry-climate model |
title_full |
Inclusion of mountain-wave-induced cooling for the formation of PSCs over the Antarctic Peninsula in a chemistry-climate model |
title_fullStr |
Inclusion of mountain-wave-induced cooling for the formation of PSCs over the Antarctic Peninsula in a chemistry-climate model |
title_full_unstemmed |
Inclusion of mountain-wave-induced cooling for the formation of PSCs over the Antarctic Peninsula in a chemistry-climate model |
title_sort |
inclusion of mountain-wave-induced cooling for the formation of pscs over the antarctic peninsula in a chemistry-climate model |
publisher |
European Geosciences Union |
publishDate |
2016 |
url |
https://publikationen.bibliothek.kit.edu/1000058101 https://publikationen.bibliothek.kit.edu/1000058101/4419741 https://doi.org/10.5445/IR/1000058101 http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:swb:90-581015 |
geographic |
Antarctic Antarctic Peninsula The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_source |
Atmospheric chemistry and physics, 15 (2), 1071-1086 ISSN: 1680-7316, 1680-7324 |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000351170000019 info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-15-1071-2015 info:eu-repo/semantics/altIdentifier/issn/1680-7316 info:eu-repo/semantics/altIdentifier/issn/1680-7324 https://publikationen.bibliothek.kit.edu/1000058101 https://publikationen.bibliothek.kit.edu/1000058101/4419741 https://doi.org/10.5445/IR/1000058101 http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:swb:90-581015 |
op_rights |
https://creativecommons.org/licenses/by/3.0/de/ info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5445/IR/1000058101 https://doi.org/10.5194/acp-15-1071-2015 |
_version_ |
1766204765947035648 |