Observations of iodine monoxide columns from satellite
International audience Iodine species in the troposphere are linked to ozone depletion and new particle formation. In this study, a full year of iodine monoxide (IO) columns retrieved from measurements of the SCIAMACHY satellite instrument is presented, coupled with a discussion of their uncertainti...
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ftinsu:oai:HAL:hal-00296438v1 2023-11-12T04:06:09+01:00 Observations of iodine monoxide columns from satellite Schönhardt, A. Richter, A. Wittrock, F. Kirk, H. Oetjen, H. Roscoe, H. K. Burrows, J. P. Institute of Environmental Physics Bremen (IUP) University of Bremen British Antarctic Survey (BAS) Natural Environment Research Council (NERC) 2008-02-11 https://hal.science/hal-00296438 https://hal.science/hal-00296438/document https://hal.science/hal-00296438/file/acp-8-637-2008.pdf en eng HAL CCSD European Geosciences Union hal-00296438 https://hal.science/hal-00296438 https://hal.science/hal-00296438/document https://hal.science/hal-00296438/file/acp-8-637-2008.pdf info:eu-repo/semantics/OpenAccess ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.science/hal-00296438 Atmospheric Chemistry and Physics, 2008, 8 (3), pp.637-653 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2008 ftinsu 2023-10-25T16:29:16Z International audience Iodine species in the troposphere are linked to ozone depletion and new particle formation. In this study, a full year of iodine monoxide (IO) columns retrieved from measurements of the SCIAMACHY satellite instrument is presented, coupled with a discussion of their uncertainties and the detection limits. The largest amounts of IO are found near springtime in the Antarctic. A seasonal variation of iodine monoxide in Antarctica is revealed with high values in springtime, slightly less IO in the summer period and again larger amounts in autumn. In winter, no elevated IO levels are found in the areas accessible to satellite measurements. This seasonal cycle is in good agreement with recent ground-based measurements in Antarctica. In the Arctic region, no elevated IO levels were found in the period analysed. This implies that different conditions with respect to iodine release exist in the two Polar Regions. To investigate possible release mechanisms, comparisons of IO columns with those of tropospheric BrO, and ice coverage are described and discussed. Some parallels and interesting differences between IO and BrO temporal and spatial distributions are identified. Overall, the large spatial coverage of satellite retrieved IO data and the availability of a long-term dataset provide new insight about the abundances and distributions of iodine compounds in the troposphere. Article in Journal/Newspaper Antarc* Antarctic Antarctica Arctic Institut national des sciences de l'Univers: HAL-INSU Arctic Antarctic The Antarctic |
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Institut national des sciences de l'Univers: HAL-INSU |
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language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Schönhardt, A. Richter, A. Wittrock, F. Kirk, H. Oetjen, H. Roscoe, H. K. Burrows, J. P. Observations of iodine monoxide columns from satellite |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Iodine species in the troposphere are linked to ozone depletion and new particle formation. In this study, a full year of iodine monoxide (IO) columns retrieved from measurements of the SCIAMACHY satellite instrument is presented, coupled with a discussion of their uncertainties and the detection limits. The largest amounts of IO are found near springtime in the Antarctic. A seasonal variation of iodine monoxide in Antarctica is revealed with high values in springtime, slightly less IO in the summer period and again larger amounts in autumn. In winter, no elevated IO levels are found in the areas accessible to satellite measurements. This seasonal cycle is in good agreement with recent ground-based measurements in Antarctica. In the Arctic region, no elevated IO levels were found in the period analysed. This implies that different conditions with respect to iodine release exist in the two Polar Regions. To investigate possible release mechanisms, comparisons of IO columns with those of tropospheric BrO, and ice coverage are described and discussed. Some parallels and interesting differences between IO and BrO temporal and spatial distributions are identified. Overall, the large spatial coverage of satellite retrieved IO data and the availability of a long-term dataset provide new insight about the abundances and distributions of iodine compounds in the troposphere. |
author2 |
Institute of Environmental Physics Bremen (IUP) University of Bremen British Antarctic Survey (BAS) Natural Environment Research Council (NERC) |
format |
Article in Journal/Newspaper |
author |
Schönhardt, A. Richter, A. Wittrock, F. Kirk, H. Oetjen, H. Roscoe, H. K. Burrows, J. P. |
author_facet |
Schönhardt, A. Richter, A. Wittrock, F. Kirk, H. Oetjen, H. Roscoe, H. K. Burrows, J. P. |
author_sort |
Schönhardt, A. |
title |
Observations of iodine monoxide columns from satellite |
title_short |
Observations of iodine monoxide columns from satellite |
title_full |
Observations of iodine monoxide columns from satellite |
title_fullStr |
Observations of iodine monoxide columns from satellite |
title_full_unstemmed |
Observations of iodine monoxide columns from satellite |
title_sort |
observations of iodine monoxide columns from satellite |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.science/hal-00296438 https://hal.science/hal-00296438/document https://hal.science/hal-00296438/file/acp-8-637-2008.pdf |
geographic |
Arctic Antarctic The Antarctic |
geographic_facet |
Arctic Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica Arctic |
genre_facet |
Antarc* Antarctic Antarctica Arctic |
op_source |
ISSN: 1680-7316 EISSN: 1680-7324 Atmospheric Chemistry and Physics https://hal.science/hal-00296438 Atmospheric Chemistry and Physics, 2008, 8 (3), pp.637-653 |
op_relation |
hal-00296438 https://hal.science/hal-00296438 https://hal.science/hal-00296438/document https://hal.science/hal-00296438/file/acp-8-637-2008.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782327251593854976 |