First observations of iodine oxide from space

We present retrievals of IO total columns from the Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) satellite instrument. We analyze data for October 2005 in the polar regions to demonstrate for the first time the capability to measure IO column abundances from space...

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Published in:Geophysical Research Letters
Main Authors: Saiz-Lopez, Alfonso, Chance, Kelly, Liu, Xiong, Kurosu, Thomas P., Sander, Stanley P.
Format: Article in Journal/Newspaper
Language:English
Published: American Geophysical Union 2007
Subjects:
Southern Ocean
Antarc*
Antarctica
Sea ice
ice covered areas
Online Access:http://nrs.harvard.edu/urn-3:HUL.InstRepos:41467432
https://doi.org/10.1029/2007GL030111
id ftharvardudash:oai:dash.harvard.edu:1/41467432
record_format openpolar
spelling ftharvardudash:oai:dash.harvard.edu:1/41467432 2023-05-15T14:04:47+02:00 First observations of iodine oxide from space Saiz-Lopez, Alfonso Chance, Kelly Liu, Xiong Kurosu, Thomas P. Sander, Stanley P. 2007 application/pdf http://nrs.harvard.edu/urn-3:HUL.InstRepos:41467432 https://doi.org/10.1029/2007GL030111 en_US eng American Geophysical Union Geophysical Research Letters Saiz-Lopez, Alfonso, Kelly Chance, Xiong Liu, Thomas P. Kurosu, and Stanley P. Sander. 2007. “First Observations of Iodine Oxide from Space.” Geophysical Research Letters 34 (12). https://doi.org/10.1029/2007gl030111. 0094-8276 1944-8007 http://nrs.harvard.edu/urn-3:HUL.InstRepos:41467432 doi:10.1029/2007GL030111 Journal Article 2007 ftharvardudash https://doi.org/10.1029/2007GL030111 https://doi.org/10.1029/2007gl030111 2022-04-04T11:36:29Z We present retrievals of IO total columns from the Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) satellite instrument. We analyze data for October 2005 in the polar regions to demonstrate for the first time the capability to measure IO column abundances from space. During the period of analysis (i.e. Southern Hemisphere springtime), enhanced IO vertical columns over 3 x 10(13) molecules cm(-2) are observed around coastal Antarctica; by contrast during that time in the Artic region IO is consistently below the calculated instrumental detection limit for individual radiance spectra ( 2 - 4 x 10(12) molecules cm(-2) for slant columns). The levels reported here are in reasonably good agreement with previous ground-based measurements at coastal Antarctica. These results also demonstrate that IO is widespread over sea-ice covered areas in the Southern Ocean. The occurrence of elevated IO and its hitherto unrecognized spatial distribution suggest an efficient iodine activation mechanism at a synoptic scale over coastal Antarctica. Version of Record Article in Journal/Newspaper Antarc* Antarctica Sea ice Southern Ocean ice covered areas Harvard University: DASH - Digital Access to Scholarship at Harvard Southern Ocean Geophysical Research Letters 34 12
institution Open Polar
collection Harvard University: DASH - Digital Access to Scholarship at Harvard
op_collection_id ftharvardudash
language English
description We present retrievals of IO total columns from the Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) satellite instrument. We analyze data for October 2005 in the polar regions to demonstrate for the first time the capability to measure IO column abundances from space. During the period of analysis (i.e. Southern Hemisphere springtime), enhanced IO vertical columns over 3 x 10(13) molecules cm(-2) are observed around coastal Antarctica; by contrast during that time in the Artic region IO is consistently below the calculated instrumental detection limit for individual radiance spectra ( 2 - 4 x 10(12) molecules cm(-2) for slant columns). The levels reported here are in reasonably good agreement with previous ground-based measurements at coastal Antarctica. These results also demonstrate that IO is widespread over sea-ice covered areas in the Southern Ocean. The occurrence of elevated IO and its hitherto unrecognized spatial distribution suggest an efficient iodine activation mechanism at a synoptic scale over coastal Antarctica. Version of Record
format Article in Journal/Newspaper
author Saiz-Lopez, Alfonso
Chance, Kelly
Liu, Xiong
Kurosu, Thomas P.
Sander, Stanley P.
spellingShingle Saiz-Lopez, Alfonso
Chance, Kelly
Liu, Xiong
Kurosu, Thomas P.
Sander, Stanley P.
First observations of iodine oxide from space
author_facet Saiz-Lopez, Alfonso
Chance, Kelly
Liu, Xiong
Kurosu, Thomas P.
Sander, Stanley P.
author_sort Saiz-Lopez, Alfonso
title First observations of iodine oxide from space
title_short First observations of iodine oxide from space
title_full First observations of iodine oxide from space
title_fullStr First observations of iodine oxide from space
title_full_unstemmed First observations of iodine oxide from space
title_sort first observations of iodine oxide from space
publisher American Geophysical Union
publishDate 2007
url http://nrs.harvard.edu/urn-3:HUL.InstRepos:41467432
https://doi.org/10.1029/2007GL030111
geographic Southern Ocean
geographic_facet Southern Ocean
genre Antarc*
Antarctica
Sea ice
Southern Ocean
ice covered areas
genre_facet Antarc*
Antarctica
Sea ice
Southern Ocean
ice covered areas
op_relation Geophysical Research Letters
Saiz-Lopez, Alfonso, Kelly Chance, Xiong Liu, Thomas P. Kurosu, and Stanley P. Sander. 2007. “First Observations of Iodine Oxide from Space.” Geophysical Research Letters 34 (12). https://doi.org/10.1029/2007gl030111.
0094-8276
1944-8007
http://nrs.harvard.edu/urn-3:HUL.InstRepos:41467432
doi:10.1029/2007GL030111
op_doi https://doi.org/10.1029/2007GL030111
https://doi.org/10.1029/2007gl030111
container_title Geophysical Research Letters
container_volume 34
container_issue 12
_version_ 1766276078326775808

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