Airborne observations of the 1992 Arctic winter stratosphere by FTIR solar absorption spectroscopy
The JPL MkIV interferometer, a Fourier Transform Infra-Red (FTIR) spectrometer designed specifically for atmospheric remote sensing, made measurements of the composition of the Arctic stratosphere in January, February and March 1992. These measurements were made from the NASA DC-8 aircraft as part o...
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1993
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ftnasantrs:oai:casi.ntrs.nasa.gov:19930067536 2023-05-15T14:55:16+02:00 Airborne observations of the 1992 Arctic winter stratosphere by FTIR solar absorption spectroscopy Toon, G. C. Blavier, J.-F. Solario, J. N. Szeto, J. T. Unclassified, Unlimited, Publicly available 1993 http://ntrs.nasa.gov/search.jsp?R=19930067536 unknown http://ntrs.nasa.gov/search.jsp?R=19930067536 Accession ID: 93A51533 Copyright Other Sources 46 In: Optical methods in atmospheric chemistry; Proceedings of the Meeting, Berlin, Germany, June 22-24, 1992 (A93-51501 22-35); p. 457-467. 1993 ftnasantrs 2012-02-15T20:14:25Z The JPL MkIV interferometer, a Fourier Transform Infra-Red (FTIR) spectrometer designed specifically for atmospheric remote sensing, made measurements of the composition of the Arctic stratosphere in January, February and March 1992. These measurements were made from the NASA DC-8 aircraft as part of the AASE2 campaign. The data reveal that despite 5 to 6 km of subsidence inside the vortex, which more than doubled the vertically integrated column amounts (burdens) of HF and HNO3 with respect to outside the vortex, considerable losses of NO2, HCl and ClNO3 were evident by mid-January. Temporary freeze-out of HNO3 was observed only on one occasion, Jan. 19, and was accompanied by substantial reductions in HCl and ClNO3. During February and March, ClNO3 and NO2 amounts increased dramatically. HCl also recovered but at a much slower rate, so that by March ClNO3 was the major reservoir of inorganic chlorine, at times exceeding HCl by a factor 2. Other/Unknown Material Arctic NASA Technical Reports Server (NTRS) Arctic |
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46 |
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46 Toon, G. C. Blavier, J.-F. Solario, J. N. Szeto, J. T. Airborne observations of the 1992 Arctic winter stratosphere by FTIR solar absorption spectroscopy |
topic_facet |
46 |
description |
The JPL MkIV interferometer, a Fourier Transform Infra-Red (FTIR) spectrometer designed specifically for atmospheric remote sensing, made measurements of the composition of the Arctic stratosphere in January, February and March 1992. These measurements were made from the NASA DC-8 aircraft as part of the AASE2 campaign. The data reveal that despite 5 to 6 km of subsidence inside the vortex, which more than doubled the vertically integrated column amounts (burdens) of HF and HNO3 with respect to outside the vortex, considerable losses of NO2, HCl and ClNO3 were evident by mid-January. Temporary freeze-out of HNO3 was observed only on one occasion, Jan. 19, and was accompanied by substantial reductions in HCl and ClNO3. During February and March, ClNO3 and NO2 amounts increased dramatically. HCl also recovered but at a much slower rate, so that by March ClNO3 was the major reservoir of inorganic chlorine, at times exceeding HCl by a factor 2. |
format |
Other/Unknown Material |
author |
Toon, G. C. Blavier, J.-F. Solario, J. N. Szeto, J. T. |
author_facet |
Toon, G. C. Blavier, J.-F. Solario, J. N. Szeto, J. T. |
author_sort |
Toon, G. C. |
title |
Airborne observations of the 1992 Arctic winter stratosphere by FTIR solar absorption spectroscopy |
title_short |
Airborne observations of the 1992 Arctic winter stratosphere by FTIR solar absorption spectroscopy |
title_full |
Airborne observations of the 1992 Arctic winter stratosphere by FTIR solar absorption spectroscopy |
title_fullStr |
Airborne observations of the 1992 Arctic winter stratosphere by FTIR solar absorption spectroscopy |
title_full_unstemmed |
Airborne observations of the 1992 Arctic winter stratosphere by FTIR solar absorption spectroscopy |
title_sort |
airborne observations of the 1992 arctic winter stratosphere by ftir solar absorption spectroscopy |
publishDate |
1993 |
url |
http://ntrs.nasa.gov/search.jsp?R=19930067536 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19930067536 Accession ID: 93A51533 |
op_rights |
Copyright |
_version_ |
1766327053321240576 |