Ozone loss derived from balloon-borne tracer measurements in the 1999/2000 Arctic winter

• Published in: Atmospheric Chemistry and Physics
• Main Authors: Robinson, A. D., Millard, G. A., Danis, F., Guirlet, M., Harris, N. R. P., Lee, A. M., Mcintyre, J. D., Pyle, J. A., Arvelius, J., Dagnesjo, S., Kirkwood, S., Nilsson, Hans, Toohey, D. W., Deshler, T., Goutail, Florence, Pommereau, Jean-Pierre, Elkins, J. W., Moore, F., Ray, E., Schmidt, U., Engel, A., Müller, M.
• Other Authors: Centre for Atmospheric Science Cambridge, UK, University of Cambridge UK (CAM), Atmospheric Chemistry Modelling Support Unit Cambridge (ACMSU), National Centre for Atmospheric Science Leeds (NCAS), Natural Environment Research Council (NERC)-Natural Environment Research Council (NERC), Swedish Institute of Space Physics Kiruna (IRF), Department of Atmospheric and Oceanic Sciences Boulder (ATOC), University of Colorado Boulder, Department of Atmospheric Science Laramie, University of Wyoming (UW), Service d'aéronomie (SA), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), NOAA Climate Monitoring and Diagnostics Laboratory (CMDL), National Oceanic and Atmospheric Administration (NOAA), Institut für Atmosphäre und Umwelt Frankfurt/Main (IAU), Goethe-Universität Frankfurt am Main
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2005
• Subjects: [SDU.OCEAN]Sciences of the Universe [physics]/Ocean; Atmosphere; Arctic; Descartes; Kiruna
• Online Access: https://hal.archives-ouvertes.fr/hal-00328389; https://hal.archives-ouvertes.fr/hal-00328389/document; https://hal.archives-ouvertes.fr/hal-00328389/file/acp-5-1423-2005.pdf; https://doi.org/10.5194/acp-5-1423-2005

International audience Balloon-borne measurements of CFC11 (from the DIRAC in situ gas chromatograph and the DESCARTES grab sampler), ClO and O 3 were made during the 1999/2000 Arctic winter as part of the SOLVE-THESEO 2000 campaign, based in Kiruna (Sweden). Here we present the CFC11 data from nine flights and compare them first with data from other instruments which flew during the campaign and then with the vertical distributions calculated by the SLIMCAT 3D CTM. We calculate ozone loss inside the Arctic vortex between late January and early March using the relation between CFC11 and O 3 measured on the flights. The peak ozone loss (~1200ppbv) occurs in the 440-470K region in early March in reasonable agreement with other published empirical estimates. There is also a good agreement between ozone losses derived from three balloon tracer data sets used here. The magnitude and vertical distribution of the loss derived from the measurements is in good agreement with the loss calculated from SLIMCAT over Kiruna for the same days.