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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American Geophysical Union
2007
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ftcaltechauth:oai:authors.library.caltech.edu:91263 2023-05-15T14:01:44+02:00 First observations of iodine oxide from space Saiz-Lopez, Alfonso Chance, Kelly Liu, Xiong Kurosu, Thomas P. Sander, Stanley P. 2007-06 application/pdf https://authors.library.caltech.edu/91263/ https://authors.library.caltech.edu/91263/1/Saiz-Lopez_et_al-2007-Geophysical_Research_Letters.pdf https://resolver.caltech.edu/CaltechAUTHORS:20181127-160004088 en eng American Geophysical Union https://authors.library.caltech.edu/91263/1/Saiz-Lopez_et_al-2007-Geophysical_Research_Letters.pdf Saiz-Lopez, Alfonso and Chance, Kelly and Liu, Xiong and Kurosu, Thomas P. and Sander, Stanley P. (2007) First observations of iodine oxide from space. Geophysical Research Letters, 34 (12). Art. No. L12812. ISSN 0094-8276. doi:10.1029/2007gl030111. https://resolver.caltech.edu/CaltechAUTHORS:20181127-160004088 <https://resolver.caltech.edu/CaltechAUTHORS:20181127-160004088> other Article PeerReviewed 2007 ftcaltechauth https://doi.org/10.1029/2007gl030111 2021-11-18T18:48:35Z 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 × 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 × 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. Article in Journal/Newspaper Antarc* Antarctica Sea ice Southern Ocean ice covered areas Caltech Authors (California Institute of Technology) Southern Ocean Geophysical Research Letters 34 12 |
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Caltech Authors (California Institute of Technology) |
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ftcaltechauth |
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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 × 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 × 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. |
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 |
https://authors.library.caltech.edu/91263/ https://authors.library.caltech.edu/91263/1/Saiz-Lopez_et_al-2007-Geophysical_Research_Letters.pdf https://resolver.caltech.edu/CaltechAUTHORS:20181127-160004088 |
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 |
https://authors.library.caltech.edu/91263/1/Saiz-Lopez_et_al-2007-Geophysical_Research_Letters.pdf Saiz-Lopez, Alfonso and Chance, Kelly and Liu, Xiong and Kurosu, Thomas P. and Sander, Stanley P. (2007) First observations of iodine oxide from space. Geophysical Research Letters, 34 (12). Art. No. L12812. ISSN 0094-8276. doi:10.1029/2007gl030111. https://resolver.caltech.edu/CaltechAUTHORS:20181127-160004088 <https://resolver.caltech.edu/CaltechAUTHORS:20181127-160004088> |
op_rights |
other |
op_doi |
https://doi.org/10.1029/2007gl030111 |
container_title |
Geophysical Research Letters |
container_volume |
34 |
container_issue |
12 |
_version_ |
1766271778917711872 |