First quasi-Lagrangian in situ measurements of Antarctic Polar springtime ozone: observed ozone loss rates from the Concordiasi long-duration balloon campaign
We present ozone measurements made using state-of-the-art ultraviolet photometers onboard three long-duration stratospheric balloons launched as part of the Concordiasi campaign in austral spring 2010. Ozone loss rates calculated by matching air parcels sampled at different times and places during t...
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ftcopernicus:oai:publications.copernicus.org:acp26272 2023-05-15T13:43:09+02:00 First quasi-Lagrangian in situ measurements of Antarctic Polar springtime ozone: observed ozone loss rates from the Concordiasi long-duration balloon campaign Schofield, R. Avallone, L. M. Kalnajs, L. E. Hertzog, A. Wohltmann, I. Rex, M. 2018-09-09 application/pdf https://doi.org/10.5194/acp-15-2463-2015 https://www.atmos-chem-phys.net/15/2463/2015/ eng eng doi:10.5194/acp-15-2463-2015 https://www.atmos-chem-phys.net/15/2463/2015/ eISSN: 1680-7324 Text 2018 ftcopernicus https://doi.org/10.5194/acp-15-2463-2015 2019-12-24T09:53:43Z We present ozone measurements made using state-of-the-art ultraviolet photometers onboard three long-duration stratospheric balloons launched as part of the Concordiasi campaign in austral spring 2010. Ozone loss rates calculated by matching air parcels sampled at different times and places during the polar spring are in agreement with rates previously derived from ozonesonde measurements, for the vortex average, ranging between 2 and 7 ppbv per sunlit hour or between 25 and 110 ppbv per day. However, the geographical coverage of these long-duration stratospheric balloon platforms provides new insights into the temporal and spatial patterns of ozone loss over Antarctica. Very large ozone loss rates of up to 230 ppbv per day (16 ppbv per sunlit hour) are observed for air masses that are downwind of the Antarctic Peninsula and/or over the East Antarctic region. The ozone loss rate maximum downstream of the Antarctic Peninsula region is consistent with high PSC occurrence from CALIPSO and large ClO abundances from MLS satellite observations for 12–22 September 2010, and with a chemical box model simulation using JPL 2011 kinetics with full chlorine activation. Text Antarc* Antarctic Antarctic Peninsula Antarctica Copernicus Publications: E-Journals Antarctic Antarctic Peninsula Austral The Antarctic Atmospheric Chemistry and Physics 15 5 2463 2472 |
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Copernicus Publications: E-Journals |
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ftcopernicus |
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English |
description |
We present ozone measurements made using state-of-the-art ultraviolet photometers onboard three long-duration stratospheric balloons launched as part of the Concordiasi campaign in austral spring 2010. Ozone loss rates calculated by matching air parcels sampled at different times and places during the polar spring are in agreement with rates previously derived from ozonesonde measurements, for the vortex average, ranging between 2 and 7 ppbv per sunlit hour or between 25 and 110 ppbv per day. However, the geographical coverage of these long-duration stratospheric balloon platforms provides new insights into the temporal and spatial patterns of ozone loss over Antarctica. Very large ozone loss rates of up to 230 ppbv per day (16 ppbv per sunlit hour) are observed for air masses that are downwind of the Antarctic Peninsula and/or over the East Antarctic region. The ozone loss rate maximum downstream of the Antarctic Peninsula region is consistent with high PSC occurrence from CALIPSO and large ClO abundances from MLS satellite observations for 12–22 September 2010, and with a chemical box model simulation using JPL 2011 kinetics with full chlorine activation. |
format |
Text |
author |
Schofield, R. Avallone, L. M. Kalnajs, L. E. Hertzog, A. Wohltmann, I. Rex, M. |
spellingShingle |
Schofield, R. Avallone, L. M. Kalnajs, L. E. Hertzog, A. Wohltmann, I. Rex, M. First quasi-Lagrangian in situ measurements of Antarctic Polar springtime ozone: observed ozone loss rates from the Concordiasi long-duration balloon campaign |
author_facet |
Schofield, R. Avallone, L. M. Kalnajs, L. E. Hertzog, A. Wohltmann, I. Rex, M. |
author_sort |
Schofield, R. |
title |
First quasi-Lagrangian in situ measurements of Antarctic Polar springtime ozone: observed ozone loss rates from the Concordiasi long-duration balloon campaign |
title_short |
First quasi-Lagrangian in situ measurements of Antarctic Polar springtime ozone: observed ozone loss rates from the Concordiasi long-duration balloon campaign |
title_full |
First quasi-Lagrangian in situ measurements of Antarctic Polar springtime ozone: observed ozone loss rates from the Concordiasi long-duration balloon campaign |
title_fullStr |
First quasi-Lagrangian in situ measurements of Antarctic Polar springtime ozone: observed ozone loss rates from the Concordiasi long-duration balloon campaign |
title_full_unstemmed |
First quasi-Lagrangian in situ measurements of Antarctic Polar springtime ozone: observed ozone loss rates from the Concordiasi long-duration balloon campaign |
title_sort |
first quasi-lagrangian in situ measurements of antarctic polar springtime ozone: observed ozone loss rates from the concordiasi long-duration balloon campaign |
publishDate |
2018 |
url |
https://doi.org/10.5194/acp-15-2463-2015 https://www.atmos-chem-phys.net/15/2463/2015/ |
geographic |
Antarctic Antarctic Peninsula Austral The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Austral The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica |
op_source |
eISSN: 1680-7324 |
op_relation |
doi:10.5194/acp-15-2463-2015 https://www.atmos-chem-phys.net/15/2463/2015/ |
op_doi |
https://doi.org/10.5194/acp-15-2463-2015 |
container_title |
Atmospheric Chemistry and Physics |
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15 |
container_issue |
5 |
container_start_page |
2463 |
op_container_end_page |
2472 |
_version_ |
1766185311851773952 |