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Evaluation of the MOCAGE chemistry transport model during the ICARTT/ITOP experiment

Bousserez, N. und Attié, J. L. und Peuch, V. H. und Michou, M. und Pfister, G. und Edwards, D. und Emmons, L. und Mari, C. und Barret, B. und Arnold, S. R. und Heckel, A. und Richter, A. und Schlager, H. und Lewis, A. und Avery, M. und Browell, E. V. und Hair, J. W. (2007) Evaluation of the MOCAGE chemistry transport model during the ICARTT/ITOP experiment. Journal of Geophysical Research, 112 (D10S42), Seiten 1-18. DOI: 10.1029/2006JD007595.

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Offizielle URL: http://www.agu.org/journals/ABS/2007/2006JD007595.shtml

Kurzfassung

Intercontinental Transport of Ozone and Precursors (ITOP), part of International Consortium for Atmospheric Research on Transport and Transformation (ICARTT), was a large experimental campaign designed to improve our understanding of the chemical transformations within plumes during long-range transport (LRT) of pollution from North America to Europe. This campaign took place in July and August 2004, when a strong fire season occurred in North America. Burning by-products were transported over large distances, sometimes reaching Europe. A chemical transport model, Modélisation de la Chimie Atmosphérique Grande Echelle (MOCAGE), with a high grid resolution (0.5 x 0.5) over the North Atlantic area and a daily inventory of biomass burning emissions over the United States, has been used to simulate the period. By comparing our results with available aircraft in situ measurements and satellite data (MOPITT CO and SCIAMACHY NO2), we show that MOCAGE is capable of representing the main characteristics of the tropospheric ozone-NOx-hydrocarbon chemistry during the ITOP experiment. In particular, high resolution allows the accurate representation of the pathway of exported pollution over the Atlantic, where plumes were transported preferentially at 6 km altitude. The model overestimates OH mixing ratios up to a factor of 2 in the lower troposphere, which results in a global overestimation of hydrocarbons oxidation by-products (PAN and ketones) and an excess of O3 (30–50 ppbv) in the planetary boundary layer (PBL) over the continental United States. Sensitivity study revealed that lightning NO emissions contributed significantly to the NOx budget in the upper troposphere of northeast America during the summer 2004.

Dokumentart:Zeitschriftenbeitrag
Titel:Evaluation of the MOCAGE chemistry transport model during the ICARTT/ITOP experiment
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Bousserez, N.Univ. Paul Sabatier, Toulouse, F
Attié, J. L.Univ. Paul Sabatier, Toulouse, F
Peuch, V. H.Météo France, Toulouse, F
Michou, M.Météo France, Toulouse, F
Pfister, G.NCAR, Boulder, CO, USA
Edwards, D.NCAR, Boulder, CO, USA
Emmons, L.NCAR, Boulder, CO, USA
Mari, C.Univ. Paul Sabatier, Toulouse, F
Barret, B.Univ. Paul Sabatier, Toulouse, F
Arnold, S. R.Univ. of Leeds, Leeds, UK
Heckel, A.Inst. of Environmental Physics, Bremen
Richter, A.Inst. of Environmental Physics, Bremen
Schlager, H.NICHT SPEZIFIZIERT
Lewis, A.Univ. of York, York, UK
Avery, M.NASA, Hampton, VA, USA
Browell, E. V.NASA, Hampton, VA, USA
Hair, J. W.NASA, Hampton, VA, USA
Datum:2007
Erschienen in:Journal of Geophysical Research
Referierte Publikation:Ja
In Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:112
DOI :10.1029/2006JD007595
Seitenbereich:Seiten 1-18
Status:veröffentlicht
Stichwörter:ozone transport, chemistry transport model, NOx
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:L VU - Luftverkehr und Umwelt (alt)
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L VU - Luftverkehr und Umwelt
DLR - Teilgebiet (Projekt, Vorhaben):L - Luftverkehr und Wetter (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Atmosphärische Spurenstoffe
Hinterlegt von: Jana Freund
Hinterlegt am:27 Jun 2007
Letzte Änderung:20 Okt 2014 14:31

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