Simulation of Denitrification and Ozone Loss for the Arctic Winter 2002/2003
We present simulations with the Chemical Lagrangian Model of the Stratosphere (CLaMS) for the Arctic winter 2002/2003. We integrated a Lagrangian denitrification scheme into the three-dimensional version of CLaMS that calculates the growth and sedimentation of nitric acid trihydrate (NAT) particles...
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ftdlr:oai:elib.dlr.de:19519 2023-05-15T14:26:40+02:00 Simulation of Denitrification and Ozone Loss for the Arctic Winter 2002/2003 Grooß, J.-U. Günther, G. Müller, R. Konopka, P. Bausch, S. Schlager, H. Voigt, C. Volk, C. M. Toon, G. C. 2005 application/pdf https://elib.dlr.de/19519/ https://elib.dlr.de/19519/1/acp-5-1437-2005.pdf http://www.atmos-chem-phys.org/acp/5/1437/ en eng Copernicus Publications https://elib.dlr.de/19519/1/acp-5-1437-2005.pdf Grooß, J.-U. und Günther, G. und Müller, R. und Konopka, P. und Bausch, S. und Schlager, H. und Voigt, C. und Volk, C. M. und Toon, G. C. (2005) Simulation of Denitrification and Ozone Loss for the Arctic Winter 2002/2003. Atmospheric Chemistry and Physics, 5, Seiten 1437-1448. Copernicus Publications. Atmosphärische Spurenstoffe Zeitschriftenbeitrag PeerReviewed 2005 ftdlr 2019-05-05T22:52:51Z We present simulations with the Chemical Lagrangian Model of the Stratosphere (CLaMS) for the Arctic winter 2002/2003. We integrated a Lagrangian denitrification scheme into the three-dimensional version of CLaMS that calculates the growth and sedimentation of nitric acid trihydrate (NAT) particles along individual particle trajectories. From those, we derive the HNO3 downward flux resulting from different particle nucleation assumptions. The simulation results show a clear vertical redistribution of total inorganic nitrogen ( ), with a maximum vortex average permanent removal of over 5ppb in late December between 500 and 550K and a corresponding increase of of over 2ppb below about 450K. The simulated vertical redistribution of is compared with balloon observations by MkIV and in-situ observations from the high altitude aircraft Geophysica. Assuming a globally uniform NAT particle nucleation rate of 7.8x10 -6 cm -3 h -1 in the model, the observed denitrification is well reproduced. In the investigated winter 2002/2003, the denitrification has only moderate impact (≤14%) on the simulated vortex average ozone loss of about 1.1ppm near the 460K level. At higher altitudes, above 600K potential temperature, the simulations show significant ozone depletion through -catalytic cycles due to the unusual early exposure of vortex air to sunlight. Other Non-Article Part of Journal/Newspaper Arctic Arctic German Aerospace Center: elib - DLR electronic library Arctic |
institution |
Open Polar |
collection |
German Aerospace Center: elib - DLR electronic library |
op_collection_id |
ftdlr |
language |
English |
topic |
Atmosphärische Spurenstoffe |
spellingShingle |
Atmosphärische Spurenstoffe Grooß, J.-U. Günther, G. Müller, R. Konopka, P. Bausch, S. Schlager, H. Voigt, C. Volk, C. M. Toon, G. C. Simulation of Denitrification and Ozone Loss for the Arctic Winter 2002/2003 |
topic_facet |
Atmosphärische Spurenstoffe |
description |
We present simulations with the Chemical Lagrangian Model of the Stratosphere (CLaMS) for the Arctic winter 2002/2003. We integrated a Lagrangian denitrification scheme into the three-dimensional version of CLaMS that calculates the growth and sedimentation of nitric acid trihydrate (NAT) particles along individual particle trajectories. From those, we derive the HNO3 downward flux resulting from different particle nucleation assumptions. The simulation results show a clear vertical redistribution of total inorganic nitrogen ( ), with a maximum vortex average permanent removal of over 5ppb in late December between 500 and 550K and a corresponding increase of of over 2ppb below about 450K. The simulated vertical redistribution of is compared with balloon observations by MkIV and in-situ observations from the high altitude aircraft Geophysica. Assuming a globally uniform NAT particle nucleation rate of 7.8x10 -6 cm -3 h -1 in the model, the observed denitrification is well reproduced. In the investigated winter 2002/2003, the denitrification has only moderate impact (≤14%) on the simulated vortex average ozone loss of about 1.1ppm near the 460K level. At higher altitudes, above 600K potential temperature, the simulations show significant ozone depletion through -catalytic cycles due to the unusual early exposure of vortex air to sunlight. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Grooß, J.-U. Günther, G. Müller, R. Konopka, P. Bausch, S. Schlager, H. Voigt, C. Volk, C. M. Toon, G. C. |
author_facet |
Grooß, J.-U. Günther, G. Müller, R. Konopka, P. Bausch, S. Schlager, H. Voigt, C. Volk, C. M. Toon, G. C. |
author_sort |
Grooß, J.-U. |
title |
Simulation of Denitrification and Ozone Loss for the Arctic Winter 2002/2003 |
title_short |
Simulation of Denitrification and Ozone Loss for the Arctic Winter 2002/2003 |
title_full |
Simulation of Denitrification and Ozone Loss for the Arctic Winter 2002/2003 |
title_fullStr |
Simulation of Denitrification and Ozone Loss for the Arctic Winter 2002/2003 |
title_full_unstemmed |
Simulation of Denitrification and Ozone Loss for the Arctic Winter 2002/2003 |
title_sort |
simulation of denitrification and ozone loss for the arctic winter 2002/2003 |
publisher |
Copernicus Publications |
publishDate |
2005 |
url |
https://elib.dlr.de/19519/ https://elib.dlr.de/19519/1/acp-5-1437-2005.pdf http://www.atmos-chem-phys.org/acp/5/1437/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic |
genre_facet |
Arctic Arctic |
op_relation |
https://elib.dlr.de/19519/1/acp-5-1437-2005.pdf Grooß, J.-U. und Günther, G. und Müller, R. und Konopka, P. und Bausch, S. und Schlager, H. und Voigt, C. und Volk, C. M. und Toon, G. C. (2005) Simulation of Denitrification and Ozone Loss for the Arctic Winter 2002/2003. Atmospheric Chemistry and Physics, 5, Seiten 1437-1448. Copernicus Publications. |
_version_ |
1766299942615252992 |