Observations of iodine monoxide columns from satellite

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 li...

Full description

Bibliographic Details
Published in:Atmospheric Chemistry and Physics
Main Authors: Schönhardt, A., Richter, A., Wittrock, F., Kirk, H., Oetjen, H., Roscoe, H. K., Burrows, J. P.
Format: Text
Language:English
Published: 2018
Subjects:
Online Access:https://doi.org/10.5194/acp-8-637-2008
https://www.atmos-chem-phys.net/8/637/2008/
id ftcopernicus:oai:publications.copernicus.org:acp4839
record_format openpolar
spelling ftcopernicus:oai:publications.copernicus.org:acp4839 2023-05-15T13:45:55+02:00 Observations of iodine monoxide columns from satellite Schönhardt, A. Richter, A. Wittrock, F. Kirk, H. Oetjen, H. Roscoe, H. K. Burrows, J. P. 2018-01-15 application/pdf https://doi.org/10.5194/acp-8-637-2008 https://www.atmos-chem-phys.net/8/637/2008/ eng eng doi:10.5194/acp-8-637-2008 https://www.atmos-chem-phys.net/8/637/2008/ eISSN: 1680-7324 Text 2018 ftcopernicus https://doi.org/10.5194/acp-8-637-2008 2019-12-24T09:58:23Z 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. Text Antarc* Antarctic Antarctica Arctic Copernicus Publications: E-Journals Antarctic Arctic The Antarctic Atmospheric Chemistry and Physics 8 3 637 653
institution Open Polar
collection Copernicus Publications: E-Journals
op_collection_id ftcopernicus
language English
description 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.
format Text
author Schönhardt, A.
Richter, A.
Wittrock, F.
Kirk, H.
Oetjen, H.
Roscoe, H. K.
Burrows, J. P.
spellingShingle Schönhardt, A.
Richter, A.
Wittrock, F.
Kirk, H.
Oetjen, H.
Roscoe, H. K.
Burrows, J. P.
Observations of iodine monoxide columns from satellite
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
publishDate 2018
url https://doi.org/10.5194/acp-8-637-2008
https://www.atmos-chem-phys.net/8/637/2008/
geographic Antarctic
Arctic
The Antarctic
geographic_facet Antarctic
Arctic
The Antarctic
genre Antarc*
Antarctic
Antarctica
Arctic
genre_facet Antarc*
Antarctic
Antarctica
Arctic
op_source eISSN: 1680-7324
op_relation doi:10.5194/acp-8-637-2008
https://www.atmos-chem-phys.net/8/637/2008/
op_doi https://doi.org/10.5194/acp-8-637-2008
container_title Atmospheric Chemistry and Physics
container_volume 8
container_issue 3
container_start_page 637
op_container_end_page 653
_version_ 1766232720924475392