Injection in the lower stratosphere of biomass fire emissions followed by long-range transport: a MOZAIC case study
International audience This paper analyses a stratospheric injection by deep convection of biomass fire emissions over North America (Alaska, Yukon and Northwest Territories) on 24 June 2004 and its long-range transport over the eastern coast of the United States and the eastern Atlantic. The case s...
Published in: | Atmospheric Chemistry and Physics |
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Main Authors: | , , , , , , , , , , , |
Other Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2009
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Online Access: | https://hal.science/hal-00991984 https://hal.science/hal-00991984/document https://hal.science/hal-00991984/file/acp-9-5829-2009.pdf https://doi.org/10.5194/acp-9-5829-2009 |
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openpolar |
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Open Polar |
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Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
spellingShingle |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] Cammas, Jean-Pierre Brioude, Jérôme Chaboureau, Jean-Pierre J., Duron C., Mari P., Mascart P., Nédélec H., Smit H.W., Pätz A., Volz-Thomas A., Stohl M., Fromm Injection in the lower stratosphere of biomass fire emissions followed by long-range transport: a MOZAIC case study |
topic_facet |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] |
description |
International audience This paper analyses a stratospheric injection by deep convection of biomass fire emissions over North America (Alaska, Yukon and Northwest Territories) on 24 June 2004 and its long-range transport over the eastern coast of the United States and the eastern Atlantic. The case study is based on airborne MOZAIC observations of ozone, carbon monoxide, nitrogen oxides and water vapour during the crossing of the southernmost tip of an upper level trough over the Eastern Atlantic on 30 June and on a vertical profile over Washington DC on 30 June, and on lidar observations of aerosol backscattering at Madison (University of Wisconsin) on 28 June. Attribution of the observed CO plumes to the boreal fires is achieved by backward simulations with a Lagrangian particle dispersion model (FLEXPART). A simulation with the Meso-NH model for the source region shows that a boundary layer tracer, mimicking the boreal forest fire smoke, is lofted into the lowermost stratosphere (2-5 pvu layer) during the diurnal convective cycle at isentropic levels (above 335 K) corresponding to those of the downstream MOZAIC observations. It is shown that the order of magnitude of the time needed by the parameterized convective detrainment flux to fill the volume of a model mesh (20 km horizontal, 500 m vertical) above the tropopause with pure boundary layer air would be about 7.5 h, i.e. a time period compatible with the convective diurnal cycle. Over the area of interest, the maximum instantaneous detrainment fluxes deposited about 15 to 20% of the initial boundary layer tracer concentration at 335 K. According to the 275-ppbv carbon monoxide maximum mixing ratio observed by MOZAIC over Eastern Atlantic, such detrainment fluxes would be associated with a 1.4-1.8 ppmv carbon monoxide mixing ratio in the boundary layer over the source region. |
author2 |
Laboratoire d'aérologie (LAERO) Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) CNRS-INSU |
format |
Article in Journal/Newspaper |
author |
Cammas, Jean-Pierre Brioude, Jérôme Chaboureau, Jean-Pierre J., Duron C., Mari P., Mascart P., Nédélec H., Smit H.W., Pätz A., Volz-Thomas A., Stohl M., Fromm |
author_facet |
Cammas, Jean-Pierre Brioude, Jérôme Chaboureau, Jean-Pierre J., Duron C., Mari P., Mascart P., Nédélec H., Smit H.W., Pätz A., Volz-Thomas A., Stohl M., Fromm |
author_sort |
Cammas, Jean-Pierre |
title |
Injection in the lower stratosphere of biomass fire emissions followed by long-range transport: a MOZAIC case study |
title_short |
Injection in the lower stratosphere of biomass fire emissions followed by long-range transport: a MOZAIC case study |
title_full |
Injection in the lower stratosphere of biomass fire emissions followed by long-range transport: a MOZAIC case study |
title_fullStr |
Injection in the lower stratosphere of biomass fire emissions followed by long-range transport: a MOZAIC case study |
title_full_unstemmed |
Injection in the lower stratosphere of biomass fire emissions followed by long-range transport: a MOZAIC case study |
title_sort |
injection in the lower stratosphere of biomass fire emissions followed by long-range transport: a mozaic case study |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal.science/hal-00991984 https://hal.science/hal-00991984/document https://hal.science/hal-00991984/file/acp-9-5829-2009.pdf https://doi.org/10.5194/acp-9-5829-2009 |
geographic |
Northwest Territories Yukon |
geographic_facet |
Northwest Territories Yukon |
genre |
Northwest Territories Alaska Yukon |
genre_facet |
Northwest Territories Alaska Yukon |
op_source |
ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.science/hal-00991984 Atmospheric Chemistry and Physics, 2009, 9 (15), pp.5829-5846. ⟨10.5194/acp-9-5829-2009⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-9-5829-2009 hal-00991984 https://hal.science/hal-00991984 https://hal.science/hal-00991984/document https://hal.science/hal-00991984/file/acp-9-5829-2009.pdf doi:10.5194/acp-9-5829-2009 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/acp-9-5829-2009 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
9 |
container_issue |
15 |
container_start_page |
5829 |
op_container_end_page |
5846 |
_version_ |
1790605434396082176 |
spelling |
ftinsu:oai:HAL:hal-00991984v1 2024-02-11T10:07:15+01:00 Injection in the lower stratosphere of biomass fire emissions followed by long-range transport: a MOZAIC case study Cammas, Jean-Pierre Brioude, Jérôme Chaboureau, Jean-Pierre J., Duron C., Mari P., Mascart P., Nédélec H., Smit H.W., Pätz A., Volz-Thomas A., Stohl M., Fromm Laboratoire d'aérologie (LAERO) Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) CNRS-INSU 2009 https://hal.science/hal-00991984 https://hal.science/hal-00991984/document https://hal.science/hal-00991984/file/acp-9-5829-2009.pdf https://doi.org/10.5194/acp-9-5829-2009 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-9-5829-2009 hal-00991984 https://hal.science/hal-00991984 https://hal.science/hal-00991984/document https://hal.science/hal-00991984/file/acp-9-5829-2009.pdf doi:10.5194/acp-9-5829-2009 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.science/hal-00991984 Atmospheric Chemistry and Physics, 2009, 9 (15), pp.5829-5846. ⟨10.5194/acp-9-5829-2009⟩ [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph] info:eu-repo/semantics/article Journal articles 2009 ftinsu https://doi.org/10.5194/acp-9-5829-2009 2024-01-17T17:25:26Z International audience This paper analyses a stratospheric injection by deep convection of biomass fire emissions over North America (Alaska, Yukon and Northwest Territories) on 24 June 2004 and its long-range transport over the eastern coast of the United States and the eastern Atlantic. The case study is based on airborne MOZAIC observations of ozone, carbon monoxide, nitrogen oxides and water vapour during the crossing of the southernmost tip of an upper level trough over the Eastern Atlantic on 30 June and on a vertical profile over Washington DC on 30 June, and on lidar observations of aerosol backscattering at Madison (University of Wisconsin) on 28 June. Attribution of the observed CO plumes to the boreal fires is achieved by backward simulations with a Lagrangian particle dispersion model (FLEXPART). A simulation with the Meso-NH model for the source region shows that a boundary layer tracer, mimicking the boreal forest fire smoke, is lofted into the lowermost stratosphere (2-5 pvu layer) during the diurnal convective cycle at isentropic levels (above 335 K) corresponding to those of the downstream MOZAIC observations. It is shown that the order of magnitude of the time needed by the parameterized convective detrainment flux to fill the volume of a model mesh (20 km horizontal, 500 m vertical) above the tropopause with pure boundary layer air would be about 7.5 h, i.e. a time period compatible with the convective diurnal cycle. Over the area of interest, the maximum instantaneous detrainment fluxes deposited about 15 to 20% of the initial boundary layer tracer concentration at 335 K. According to the 275-ppbv carbon monoxide maximum mixing ratio observed by MOZAIC over Eastern Atlantic, such detrainment fluxes would be associated with a 1.4-1.8 ppmv carbon monoxide mixing ratio in the boundary layer over the source region. Article in Journal/Newspaper Northwest Territories Alaska Yukon Institut national des sciences de l'Univers: HAL-INSU Northwest Territories Yukon Atmospheric Chemistry and Physics 9 15 5829 5846 |