CLAES observations of ClONO2 and HNO3 in the Antarctic stratosphere, between June 15 and September 17, 1992
The Cryogenic Array Etalon Spectrometer (CLAES) on the NASA Upper Atmosphere Research Satellite (UARS) began viewing the stratosphere in October 1991. This paper presents preliminary retrievals of ClONO2 and HNO3 from the CLAES measurements for selected days in June, July, August, and September of 1...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19930062157 2023-05-15T14:04:19+02:00 CLAES observations of ClONO2 and HNO3 in the Antarctic stratosphere, between June 15 and September 17, 1992 Roche, A. E. Kumer, J. B. Mergenthaler, J. L. Unclassified, Unlimited, Publicly available June 18, 1993 http://ntrs.nasa.gov/search.jsp?R=19930062157 unknown http://ntrs.nasa.gov/search.jsp?R=19930062157 Accession ID: 93A46154 Copyright Other Sources 45 Geophysical Research Letters; 20; 12; p. 1223-1226. 1993 ftnasantrs 2012-02-15T20:11:42Z The Cryogenic Array Etalon Spectrometer (CLAES) on the NASA Upper Atmosphere Research Satellite (UARS) began viewing the stratosphere in October 1991. This paper presents preliminary retrievals of ClONO2 and HNO3 from the CLAES measurements for selected days in June, July, August, and September of 1992 for the Southern Hemisphere. The data shows that by July 10, lower stratospheric ClONO2 and HNO3 have developed high 'collar' regions surrounding the polar vortex, and low values inside the vortex. This general structure is sustained through September 17, although the ClONO2 values inside the vortex increase significantly by this date. The data suggests that substantial sequestration of gaseous HNO3 in polar stratospheric clouds occurs in the early winter Antarctic stratosphere, accompanied by the conversion of ClONO2 to reactive chlorine through heterogeneous processes on the PSCs. Other/Unknown Material Antarc* Antarctic NASA Technical Reports Server (NTRS) Antarctic The Antarctic |
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NASA Technical Reports Server (NTRS) |
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45 |
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45 Roche, A. E. Kumer, J. B. Mergenthaler, J. L. CLAES observations of ClONO2 and HNO3 in the Antarctic stratosphere, between June 15 and September 17, 1992 |
topic_facet |
45 |
description |
The Cryogenic Array Etalon Spectrometer (CLAES) on the NASA Upper Atmosphere Research Satellite (UARS) began viewing the stratosphere in October 1991. This paper presents preliminary retrievals of ClONO2 and HNO3 from the CLAES measurements for selected days in June, July, August, and September of 1992 for the Southern Hemisphere. The data shows that by July 10, lower stratospheric ClONO2 and HNO3 have developed high 'collar' regions surrounding the polar vortex, and low values inside the vortex. This general structure is sustained through September 17, although the ClONO2 values inside the vortex increase significantly by this date. The data suggests that substantial sequestration of gaseous HNO3 in polar stratospheric clouds occurs in the early winter Antarctic stratosphere, accompanied by the conversion of ClONO2 to reactive chlorine through heterogeneous processes on the PSCs. |
format |
Other/Unknown Material |
author |
Roche, A. E. Kumer, J. B. Mergenthaler, J. L. |
author_facet |
Roche, A. E. Kumer, J. B. Mergenthaler, J. L. |
author_sort |
Roche, A. E. |
title |
CLAES observations of ClONO2 and HNO3 in the Antarctic stratosphere, between June 15 and September 17, 1992 |
title_short |
CLAES observations of ClONO2 and HNO3 in the Antarctic stratosphere, between June 15 and September 17, 1992 |
title_full |
CLAES observations of ClONO2 and HNO3 in the Antarctic stratosphere, between June 15 and September 17, 1992 |
title_fullStr |
CLAES observations of ClONO2 and HNO3 in the Antarctic stratosphere, between June 15 and September 17, 1992 |
title_full_unstemmed |
CLAES observations of ClONO2 and HNO3 in the Antarctic stratosphere, between June 15 and September 17, 1992 |
title_sort |
claes observations of clono2 and hno3 in the antarctic stratosphere, between june 15 and september 17, 1992 |
publishDate |
1993 |
url |
http://ntrs.nasa.gov/search.jsp?R=19930062157 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19930062157 Accession ID: 93A46154 |
op_rights |
Copyright |
_version_ |
1766275361192017920 |