Intercomparison of polar ozone profiles by IASI/MetOp sounder with 2010 Concordiasi ozonesonde observations
Validation of ozone profiles measured from a nadir looking satellite instrument over Antarctica is a challenging task due to differences in their vertical sensitivity with ozonesonde measurements. In this paper, ozone observations provided by the Infrared Atmospheric Sounding Interferometer (IASI) i...
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ftcopernicus:oai:publications.copernicus.org:amt17287 2023-05-15T13:54:27+02:00 Intercomparison of polar ozone profiles by IASI/MetOp sounder with 2010 Concordiasi ozonesonde observations Gazeaux, J. Clerbaux, C. George, M. Hadji-Lazaro, J. Kuttippurath, J. Coheur, P.-F. Hurtmans, D. Deshler, T. Kovilakam, M. Campbell, P. Guidard, V. Rabier, F. Thépaut, J.-N. 2018-01-15 application/pdf https://doi.org/10.5194/amt-6-613-2013 https://amt.copernicus.org/articles/6/613/2013/ eng eng doi:10.5194/amt-6-613-2013 https://amt.copernicus.org/articles/6/613/2013/ eISSN: 1867-8548 Text 2018 ftcopernicus https://doi.org/10.5194/amt-6-613-2013 2020-07-20T16:25:32Z Validation of ozone profiles measured from a nadir looking satellite instrument over Antarctica is a challenging task due to differences in their vertical sensitivity with ozonesonde measurements. In this paper, ozone observations provided by the Infrared Atmospheric Sounding Interferometer (IASI) instrument onboard the polar-orbiting satellite MetOp are compared with ozone profiles collected between August and October 2010 at McMurdo Station, Antarctica, during the Concordiasi measurement campaign. The main objective of the campaign was the satellite data validation. With this aim 20 zero-pressure sounding balloons carrying ozonesondes were launched during this period when the MetOp satellite was passing above McMurdo. This makes the dataset relevant for comparison, especially because the balloons covered the entire altitude range of IASI profiles. The validation methodology and the collocation criteria vary according to the availability of global positioning system auxiliary data with each electro-chemical cell ozonesonde observation. The relative mean difference is shown to depend on the vertical range investigated. The analysis shows a good agreement in the troposphere (below 10 km) and middle stratosphere (25–40 km), where the differences are lower than 10%. However a significant positive bias of about 10–26% is estimated in the lower stratosphere at 10–25 km, depending on altitude. The positive bias in the 10–25 km range is consistent with previously reported studies comparing in situ data with thermal infrared satellite measurements. This study allows for a better characterization of IASI-retrieved ozone over the polar region during ozone depletion/recovery processes. Text Antarc* Antarctica Copernicus Publications: E-Journals McMurdo Station ENVELOPE(166.667,166.667,-77.850,-77.850) Atmospheric Measurement Techniques 6 3 613 620 |
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Open Polar |
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Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
Validation of ozone profiles measured from a nadir looking satellite instrument over Antarctica is a challenging task due to differences in their vertical sensitivity with ozonesonde measurements. In this paper, ozone observations provided by the Infrared Atmospheric Sounding Interferometer (IASI) instrument onboard the polar-orbiting satellite MetOp are compared with ozone profiles collected between August and October 2010 at McMurdo Station, Antarctica, during the Concordiasi measurement campaign. The main objective of the campaign was the satellite data validation. With this aim 20 zero-pressure sounding balloons carrying ozonesondes were launched during this period when the MetOp satellite was passing above McMurdo. This makes the dataset relevant for comparison, especially because the balloons covered the entire altitude range of IASI profiles. The validation methodology and the collocation criteria vary according to the availability of global positioning system auxiliary data with each electro-chemical cell ozonesonde observation. The relative mean difference is shown to depend on the vertical range investigated. The analysis shows a good agreement in the troposphere (below 10 km) and middle stratosphere (25–40 km), where the differences are lower than 10%. However a significant positive bias of about 10–26% is estimated in the lower stratosphere at 10–25 km, depending on altitude. The positive bias in the 10–25 km range is consistent with previously reported studies comparing in situ data with thermal infrared satellite measurements. This study allows for a better characterization of IASI-retrieved ozone over the polar region during ozone depletion/recovery processes. |
format |
Text |
author |
Gazeaux, J. Clerbaux, C. George, M. Hadji-Lazaro, J. Kuttippurath, J. Coheur, P.-F. Hurtmans, D. Deshler, T. Kovilakam, M. Campbell, P. Guidard, V. Rabier, F. Thépaut, J.-N. |
spellingShingle |
Gazeaux, J. Clerbaux, C. George, M. Hadji-Lazaro, J. Kuttippurath, J. Coheur, P.-F. Hurtmans, D. Deshler, T. Kovilakam, M. Campbell, P. Guidard, V. Rabier, F. Thépaut, J.-N. Intercomparison of polar ozone profiles by IASI/MetOp sounder with 2010 Concordiasi ozonesonde observations |
author_facet |
Gazeaux, J. Clerbaux, C. George, M. Hadji-Lazaro, J. Kuttippurath, J. Coheur, P.-F. Hurtmans, D. Deshler, T. Kovilakam, M. Campbell, P. Guidard, V. Rabier, F. Thépaut, J.-N. |
author_sort |
Gazeaux, J. |
title |
Intercomparison of polar ozone profiles by IASI/MetOp sounder with 2010 Concordiasi ozonesonde observations |
title_short |
Intercomparison of polar ozone profiles by IASI/MetOp sounder with 2010 Concordiasi ozonesonde observations |
title_full |
Intercomparison of polar ozone profiles by IASI/MetOp sounder with 2010 Concordiasi ozonesonde observations |
title_fullStr |
Intercomparison of polar ozone profiles by IASI/MetOp sounder with 2010 Concordiasi ozonesonde observations |
title_full_unstemmed |
Intercomparison of polar ozone profiles by IASI/MetOp sounder with 2010 Concordiasi ozonesonde observations |
title_sort |
intercomparison of polar ozone profiles by iasi/metop sounder with 2010 concordiasi ozonesonde observations |
publishDate |
2018 |
url |
https://doi.org/10.5194/amt-6-613-2013 https://amt.copernicus.org/articles/6/613/2013/ |
long_lat |
ENVELOPE(166.667,166.667,-77.850,-77.850) |
geographic |
McMurdo Station |
geographic_facet |
McMurdo Station |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
eISSN: 1867-8548 |
op_relation |
doi:10.5194/amt-6-613-2013 https://amt.copernicus.org/articles/6/613/2013/ |
op_doi |
https://doi.org/10.5194/amt-6-613-2013 |
container_title |
Atmospheric Measurement Techniques |
container_volume |
6 |
container_issue |
3 |
container_start_page |
613 |
op_container_end_page |
620 |
_version_ |
1766260381613817856 |