Infrared measurements of atmospheric CH_3CN
For the first time CH_3CN has been measured in the Earth's atmosphere by means of infrared remote sensing. Vertical profiles of volume mixing ratio were retrieved from 12 solar occultation measurements by the balloon-borne JPL MkIV interferometer between 1993 and 2004. Profile retrieval is poss...
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ftcaltechauth:oai:authors.library.caltech.edu:46620 |
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openpolar |
institution |
Open Polar |
collection |
Caltech Authors (California Institute of Technology) |
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ftcaltechauth |
language |
English |
description |
For the first time CH_3CN has been measured in the Earth's atmosphere by means of infrared remote sensing. Vertical profiles of volume mixing ratio were retrieved from 12 solar occultation measurements by the balloon-borne JPL MkIV interferometer between 1993 and 2004. Profile retrieval is possible in an altitude range between 12 and 30 km with a precision of ∼20 ppt in the Arctic and ∼30 ppt at mid-latitudes. The retrieved CH_3CN profiles show mixing ratios of 100–150 ppt a few kilometers above the tropopause that decrease to values below 40 ppt at altitudes between 22 and 30 km. The CH_3CN mixing ratios show a reasonably compact correlation with the stratospheric tracers CH_3Cl and CH_4. The CH_3CN altitude profiles and tracer correlations are well reproduced by a 2-dimensional model, suggesting that CH_3CN is long-lived in the lower stratosphere and that previously-proposed ion-molecule reactions do not play a major role as loss processes of CH_3CN. |
format |
Article in Journal/Newspaper |
author |
Kleinböhl, Armin Toon, Geoffrey C. Sen, Bhaswar Blavier, Jean-François L. Weisenstein, Debra K. Wennberg, Paul O. |
spellingShingle |
Kleinböhl, Armin Toon, Geoffrey C. Sen, Bhaswar Blavier, Jean-François L. Weisenstein, Debra K. Wennberg, Paul O. Infrared measurements of atmospheric CH_3CN |
author_facet |
Kleinböhl, Armin Toon, Geoffrey C. Sen, Bhaswar Blavier, Jean-François L. Weisenstein, Debra K. Wennberg, Paul O. |
author_sort |
Kleinböhl, Armin |
title |
Infrared measurements of atmospheric CH_3CN |
title_short |
Infrared measurements of atmospheric CH_3CN |
title_full |
Infrared measurements of atmospheric CH_3CN |
title_fullStr |
Infrared measurements of atmospheric CH_3CN |
title_full_unstemmed |
Infrared measurements of atmospheric CH_3CN |
title_sort |
infrared measurements of atmospheric ch_3cn |
publisher |
American Geophysical Union |
publishDate |
2005 |
url |
https://authors.library.caltech.edu/46620/ https://authors.library.caltech.edu/46620/1/grl20563.pdf https://authors.library.caltech.edu/46620/7/grl20563-sup-0001-README.txt https://authors.library.caltech.edu/46620/8/grl20563-sup-0002-text01.txt https://authors.library.caltech.edu/46620/9/grl20563-sup-0003-ts01.txt https://authors.library.caltech.edu/46620/10/grl20563-sup-0004-ts02.txt https://authors.library.caltech.edu/46620/15/grl20563-sup-0005-fs01.eps https://authors.library.caltech.edu/46620/16/grl20563-sup-0006-fs02.eps https://authors.library.caltech.edu/46620/17/grl20563-sup-0007-text02.txt https://authors.library.caltech.edu/46620/18/grl20563-sup-0008-ts03.txt https://authors.library.caltech.edu/46620/19/grl20563-sup-0009-ts04.txt https://authors.library.caltech.edu/46620/23/grl20563-sup-0010-text03.txt https://authors.library.caltech.edu/46620/25/grl20563-sup-0011-text01.txt https://authors.library.caltech.edu/46620/26/grl20563-sup-0012-ts01.txt https://authors.library.caltech.edu/46620/27/grl20563-sup-0013-ts02.txt https://authors.library.caltech.edu/46620/31/grl20563-sup-0014-fs01.eps https://authors.library.caltech.edu/46620/32/grl20563-sup-0015-fs02.eps https://authors.library.caltech.edu/46620/33/grl20563-sup-0016-text02.txt https://authors.library.caltech.edu/46620/34/grl20563-sup-0017-ts03.txt https://authors.library.caltech.edu/46620/37/grl20563-sup-0018-ts04.txt https://authors.library.caltech.edu/46620/38/grl20563-sup-0019-text03.txt https://resolver.caltech.edu/CaltechAUTHORS:20140702-090327628 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
https://authors.library.caltech.edu/46620/1/grl20563.pdf https://authors.library.caltech.edu/46620/7/grl20563-sup-0001-README.txt https://authors.library.caltech.edu/46620/8/grl20563-sup-0002-text01.txt https://authors.library.caltech.edu/46620/9/grl20563-sup-0003-ts01.txt https://authors.library.caltech.edu/46620/10/grl20563-sup-0004-ts02.txt https://authors.library.caltech.edu/46620/15/grl20563-sup-0005-fs01.eps https://authors.library.caltech.edu/46620/16/grl20563-sup-0006-fs02.eps https://authors.library.caltech.edu/46620/17/grl20563-sup-0007-text02.txt https://authors.library.caltech.edu/46620/18/grl20563-sup-0008-ts03.txt https://authors.library.caltech.edu/46620/19/grl20563-sup-0009-ts04.txt https://authors.library.caltech.edu/46620/23/grl20563-sup-0010-text03.txt https://authors.library.caltech.edu/46620/25/grl20563-sup-0011-text01.txt https://authors.library.caltech.edu/46620/26/grl20563-sup-0012-ts01.txt https://authors.library.caltech.edu/46620/27/grl20563-sup-0013-ts02.txt https://authors.library.caltech.edu/46620/31/grl20563-sup-0014-fs01.eps https://authors.library.caltech.edu/46620/32/grl20563-sup-0015-fs02.eps https://authors.library.caltech.edu/46620/33/grl20563-sup-0016-text02.txt https://authors.library.caltech.edu/46620/34/grl20563-sup-0017-ts03.txt https://authors.library.caltech.edu/46620/37/grl20563-sup-0018-ts04.txt https://authors.library.caltech.edu/46620/38/grl20563-sup-0019-text03.txt Kleinböhl, Armin and Toon, Geoffrey C. and Sen, Bhaswar and Blavier, Jean-François L. and Weisenstein, Debra K. and Wennberg, Paul O. (2005) Infrared measurements of atmospheric CH_3CN. Geophysical Research Letters, 32 (23). Art. No. L23807. ISSN 0094-8276. doi:10.1029/2005GL024283. https://resolver.caltech.edu/CaltechAUTHORS:20140702-090327628 <https://resolver.caltech.edu/CaltechAUTHORS:20140702-090327628> |
op_rights |
other |
op_doi |
https://doi.org/10.1029/2005GL024283 |
container_title |
Geophysical Research Letters |
container_volume |
32 |
container_issue |
23 |
_version_ |
1766335317282914304 |
spelling |
ftcaltechauth:oai:authors.library.caltech.edu:46620 2023-05-15T15:03:28+02:00 Infrared measurements of atmospheric CH_3CN Kleinböhl, Armin Toon, Geoffrey C. Sen, Bhaswar Blavier, Jean-François L. Weisenstein, Debra K. Wennberg, Paul O. 2005-12 application/pdf text/plain application/postscript https://authors.library.caltech.edu/46620/ https://authors.library.caltech.edu/46620/1/grl20563.pdf https://authors.library.caltech.edu/46620/7/grl20563-sup-0001-README.txt https://authors.library.caltech.edu/46620/8/grl20563-sup-0002-text01.txt https://authors.library.caltech.edu/46620/9/grl20563-sup-0003-ts01.txt https://authors.library.caltech.edu/46620/10/grl20563-sup-0004-ts02.txt https://authors.library.caltech.edu/46620/15/grl20563-sup-0005-fs01.eps https://authors.library.caltech.edu/46620/16/grl20563-sup-0006-fs02.eps https://authors.library.caltech.edu/46620/17/grl20563-sup-0007-text02.txt https://authors.library.caltech.edu/46620/18/grl20563-sup-0008-ts03.txt https://authors.library.caltech.edu/46620/19/grl20563-sup-0009-ts04.txt https://authors.library.caltech.edu/46620/23/grl20563-sup-0010-text03.txt https://authors.library.caltech.edu/46620/25/grl20563-sup-0011-text01.txt https://authors.library.caltech.edu/46620/26/grl20563-sup-0012-ts01.txt https://authors.library.caltech.edu/46620/27/grl20563-sup-0013-ts02.txt https://authors.library.caltech.edu/46620/31/grl20563-sup-0014-fs01.eps https://authors.library.caltech.edu/46620/32/grl20563-sup-0015-fs02.eps https://authors.library.caltech.edu/46620/33/grl20563-sup-0016-text02.txt https://authors.library.caltech.edu/46620/34/grl20563-sup-0017-ts03.txt https://authors.library.caltech.edu/46620/37/grl20563-sup-0018-ts04.txt https://authors.library.caltech.edu/46620/38/grl20563-sup-0019-text03.txt https://resolver.caltech.edu/CaltechAUTHORS:20140702-090327628 en eng American Geophysical Union https://authors.library.caltech.edu/46620/1/grl20563.pdf https://authors.library.caltech.edu/46620/7/grl20563-sup-0001-README.txt https://authors.library.caltech.edu/46620/8/grl20563-sup-0002-text01.txt https://authors.library.caltech.edu/46620/9/grl20563-sup-0003-ts01.txt https://authors.library.caltech.edu/46620/10/grl20563-sup-0004-ts02.txt https://authors.library.caltech.edu/46620/15/grl20563-sup-0005-fs01.eps https://authors.library.caltech.edu/46620/16/grl20563-sup-0006-fs02.eps https://authors.library.caltech.edu/46620/17/grl20563-sup-0007-text02.txt https://authors.library.caltech.edu/46620/18/grl20563-sup-0008-ts03.txt https://authors.library.caltech.edu/46620/19/grl20563-sup-0009-ts04.txt https://authors.library.caltech.edu/46620/23/grl20563-sup-0010-text03.txt https://authors.library.caltech.edu/46620/25/grl20563-sup-0011-text01.txt https://authors.library.caltech.edu/46620/26/grl20563-sup-0012-ts01.txt https://authors.library.caltech.edu/46620/27/grl20563-sup-0013-ts02.txt https://authors.library.caltech.edu/46620/31/grl20563-sup-0014-fs01.eps https://authors.library.caltech.edu/46620/32/grl20563-sup-0015-fs02.eps https://authors.library.caltech.edu/46620/33/grl20563-sup-0016-text02.txt https://authors.library.caltech.edu/46620/34/grl20563-sup-0017-ts03.txt https://authors.library.caltech.edu/46620/37/grl20563-sup-0018-ts04.txt https://authors.library.caltech.edu/46620/38/grl20563-sup-0019-text03.txt Kleinböhl, Armin and Toon, Geoffrey C. and Sen, Bhaswar and Blavier, Jean-François L. and Weisenstein, Debra K. and Wennberg, Paul O. (2005) Infrared measurements of atmospheric CH_3CN. Geophysical Research Letters, 32 (23). Art. No. L23807. ISSN 0094-8276. doi:10.1029/2005GL024283. https://resolver.caltech.edu/CaltechAUTHORS:20140702-090327628 <https://resolver.caltech.edu/CaltechAUTHORS:20140702-090327628> other Article PeerReviewed 2005 ftcaltechauth https://doi.org/10.1029/2005GL024283 2021-11-11T18:58:23Z For the first time CH_3CN has been measured in the Earth's atmosphere by means of infrared remote sensing. Vertical profiles of volume mixing ratio were retrieved from 12 solar occultation measurements by the balloon-borne JPL MkIV interferometer between 1993 and 2004. Profile retrieval is possible in an altitude range between 12 and 30 km with a precision of ∼20 ppt in the Arctic and ∼30 ppt at mid-latitudes. The retrieved CH_3CN profiles show mixing ratios of 100–150 ppt a few kilometers above the tropopause that decrease to values below 40 ppt at altitudes between 22 and 30 km. The CH_3CN mixing ratios show a reasonably compact correlation with the stratospheric tracers CH_3Cl and CH_4. The CH_3CN altitude profiles and tracer correlations are well reproduced by a 2-dimensional model, suggesting that CH_3CN is long-lived in the lower stratosphere and that previously-proposed ion-molecule reactions do not play a major role as loss processes of CH_3CN. Article in Journal/Newspaper Arctic Caltech Authors (California Institute of Technology) Arctic Geophysical Research Letters 32 23 |