Simulation of denitrification and ozone loss for the Arctic winter 2002/2003
International audience 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 trih...
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ftinsu:oai:HAL:hal-00301545v1 2024-02-11T10:01:01+01:00 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. Institut für Chemie und Dynamik der Geosphäre - Stratosphäre (ICG-1) Forschungszentrum Jülich GmbH Helmholtz-Gemeinschaft = Helmholtz Association-Helmholtz-Gemeinschaft = Helmholtz Association DLR Institut für Physik der Atmosphäre (IPA) Deutsches Zentrum für Luft- und Raumfahrt Oberpfaffenhofen-Wessling (DLR) Institut für Meteorologie und Geophysik Frankfurt Goethe-Universität Frankfurt am Main Jet Propulsion Laboratory (JPL) NASA-California Institute of Technology (CALTECH) 2004-12-06 https://hal.science/hal-00301545 https://hal.science/hal-00301545/document https://hal.science/hal-00301545/file/acpd-4-8069-2004.pdf en eng HAL CCSD European Geosciences Union hal-00301545 https://hal.science/hal-00301545 https://hal.science/hal-00301545/document https://hal.science/hal-00301545/file/acpd-4-8069-2004.pdf info:eu-repo/semantics/OpenAccess ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal.science/hal-00301545 Atmospheric Chemistry and Physics Discussions, 2004, 4 (6), pp.8069-8101 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2004 ftinsu 2024-01-17T17:27:15Z International audience 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 HNO 3 downward flux resulting from different particle nucleation assumptions. The simulation results show a clear vertical redistribution of total inorganic nitrogen (NO y ), with a maximum vortex average permanent NO y removal of over 5 ppb in late December between 500 and 550 K and a corresponding increase of NO y of over 2 ppb below about 450 K. The simulated vertical redistribution of NO y 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 3.4·10 ?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 (?10%) on the simulated vortex average ozone loss of about 1.1 ppm near the 460 K level. At higher altitudes, above 600 K potential temperature, the simulations show significant ozone depletion through NO x -catalytic cycles due to the unusual early exposure of vortex air to sunlight. Article in Journal/Newspaper Arctic Institut national des sciences de l'Univers: HAL-INSU Arctic |
institution |
Open Polar |
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Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere 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 |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience 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 HNO 3 downward flux resulting from different particle nucleation assumptions. The simulation results show a clear vertical redistribution of total inorganic nitrogen (NO y ), with a maximum vortex average permanent NO y removal of over 5 ppb in late December between 500 and 550 K and a corresponding increase of NO y of over 2 ppb below about 450 K. The simulated vertical redistribution of NO y 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 3.4·10 ?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 (?10%) on the simulated vortex average ozone loss of about 1.1 ppm near the 460 K level. At higher altitudes, above 600 K potential temperature, the simulations show significant ozone depletion through NO x -catalytic cycles due to the unusual early exposure of vortex air to sunlight. |
author2 |
Institut für Chemie und Dynamik der Geosphäre - Stratosphäre (ICG-1) Forschungszentrum Jülich GmbH Helmholtz-Gemeinschaft = Helmholtz Association-Helmholtz-Gemeinschaft = Helmholtz Association DLR Institut für Physik der Atmosphäre (IPA) Deutsches Zentrum für Luft- und Raumfahrt Oberpfaffenhofen-Wessling (DLR) Institut für Meteorologie und Geophysik Frankfurt Goethe-Universität Frankfurt am Main Jet Propulsion Laboratory (JPL) NASA-California Institute of Technology (CALTECH) |
format |
Article in 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 |
HAL CCSD |
publishDate |
2004 |
url |
https://hal.science/hal-00301545 https://hal.science/hal-00301545/document https://hal.science/hal-00301545/file/acpd-4-8069-2004.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://hal.science/hal-00301545 Atmospheric Chemistry and Physics Discussions, 2004, 4 (6), pp.8069-8101 |
op_relation |
hal-00301545 https://hal.science/hal-00301545 https://hal.science/hal-00301545/document https://hal.science/hal-00301545/file/acpd-4-8069-2004.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1790596742122569728 |