Iodine monoxide in the Antarctic snowpack
Recent ground-based and space borne observations suggest the presence of significant amounts of iodine monoxide in the boundary layer of Antarctica, which are expected to have an impact on the ozone budget and might contribute to the formation of new airborne particles. So far, the source of these i...
Published in: | Atmospheric Chemistry and Physics |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
2009
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/21228/ https://epic.awi.de/id/eprint/21228/1/Fri2009f.pdf https://doi.org/10.5194/acp-10-2439-2010 https://hdl.handle.net/10013/epic.34458 https://hdl.handle.net/10013/epic.34458.d001 |
id |
ftawi:oai:epic.awi.de:21228 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:21228 2024-09-15T17:46:23+00:00 Iodine monoxide in the Antarctic snowpack Frieß, U. Deutschmann, T. Gilfedder, B. Weller, Rolf Platt, U. 2009 application/pdf https://epic.awi.de/id/eprint/21228/ https://epic.awi.de/id/eprint/21228/1/Fri2009f.pdf https://doi.org/10.5194/acp-10-2439-2010 https://hdl.handle.net/10013/epic.34458 https://hdl.handle.net/10013/epic.34458.d001 unknown https://epic.awi.de/id/eprint/21228/1/Fri2009f.pdf https://hdl.handle.net/10013/epic.34458.d001 Frieß, U. , Deutschmann, T. , Gilfedder, B. , Weller, R. orcid:0000-0003-4880-5572 and Platt, U. (2009) Iodine monoxide in the Antarctic snowpack , Atmospheric Chemistry and Physics, 102456, 2439 . doi:10.5194/acp-10-2439-2010 <https://doi.org/10.5194/acp-10-2439-2010> , hdl:10013/epic.34458 EPIC3Atmospheric Chemistry and Physics, 102456, 2439 Article isiRev 2009 ftawi https://doi.org/10.5194/acp-10-2439-2010 2024-06-24T04:01:33Z Recent ground-based and space borne observations suggest the presence of significant amounts of iodine monoxide in the boundary layer of Antarctica, which are expected to have an impact on the ozone budget and might contribute to the formation of new airborne particles. So far, the source of these iodine radicals has been unknown. This paper presents long-term measurements of iodine monoxide at the German Antarctic research station Neumayer, which indicate that high IO concentrations in the order of 50 ppb are present in the snow interstitial air. The measurements have been performed using multi-axis differential optical absorption spectroscopy (MAX-DOAS). Using a coupled atmosphere snowpack radiative transfer model, the comparison of the signals observed from scattered skylight and from light reflected by the snowpack yields several ppb of iodine monoxide in the upper layers of the sunlit snowpack throughout the year. Snow pit samples from Neumayer Station contain up to 700 ng/l of total iodine, representing a sufficient reservoir for these extraordinarily high IO concentrations. Article in Journal/Newspaper Antarc* Antarctic Antarctica Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Atmospheric Chemistry and Physics 10 5 2439 2456 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Recent ground-based and space borne observations suggest the presence of significant amounts of iodine monoxide in the boundary layer of Antarctica, which are expected to have an impact on the ozone budget and might contribute to the formation of new airborne particles. So far, the source of these iodine radicals has been unknown. This paper presents long-term measurements of iodine monoxide at the German Antarctic research station Neumayer, which indicate that high IO concentrations in the order of 50 ppb are present in the snow interstitial air. The measurements have been performed using multi-axis differential optical absorption spectroscopy (MAX-DOAS). Using a coupled atmosphere snowpack radiative transfer model, the comparison of the signals observed from scattered skylight and from light reflected by the snowpack yields several ppb of iodine monoxide in the upper layers of the sunlit snowpack throughout the year. Snow pit samples from Neumayer Station contain up to 700 ng/l of total iodine, representing a sufficient reservoir for these extraordinarily high IO concentrations. |
format |
Article in Journal/Newspaper |
author |
Frieß, U. Deutschmann, T. Gilfedder, B. Weller, Rolf Platt, U. |
spellingShingle |
Frieß, U. Deutschmann, T. Gilfedder, B. Weller, Rolf Platt, U. Iodine monoxide in the Antarctic snowpack |
author_facet |
Frieß, U. Deutschmann, T. Gilfedder, B. Weller, Rolf Platt, U. |
author_sort |
Frieß, U. |
title |
Iodine monoxide in the Antarctic snowpack |
title_short |
Iodine monoxide in the Antarctic snowpack |
title_full |
Iodine monoxide in the Antarctic snowpack |
title_fullStr |
Iodine monoxide in the Antarctic snowpack |
title_full_unstemmed |
Iodine monoxide in the Antarctic snowpack |
title_sort |
iodine monoxide in the antarctic snowpack |
publishDate |
2009 |
url |
https://epic.awi.de/id/eprint/21228/ https://epic.awi.de/id/eprint/21228/1/Fri2009f.pdf https://doi.org/10.5194/acp-10-2439-2010 https://hdl.handle.net/10013/epic.34458 https://hdl.handle.net/10013/epic.34458.d001 |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
EPIC3Atmospheric Chemistry and Physics, 102456, 2439 |
op_relation |
https://epic.awi.de/id/eprint/21228/1/Fri2009f.pdf https://hdl.handle.net/10013/epic.34458.d001 Frieß, U. , Deutschmann, T. , Gilfedder, B. , Weller, R. orcid:0000-0003-4880-5572 and Platt, U. (2009) Iodine monoxide in the Antarctic snowpack , Atmospheric Chemistry and Physics, 102456, 2439 . doi:10.5194/acp-10-2439-2010 <https://doi.org/10.5194/acp-10-2439-2010> , hdl:10013/epic.34458 |
op_doi |
https://doi.org/10.5194/acp-10-2439-2010 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
10 |
container_issue |
5 |
container_start_page |
2439 |
op_container_end_page |
2456 |
_version_ |
1810494455222894592 |