Denitrification of the polar winter stratosphere - Implications of SAM II cloud formation temperatures

The SAM II extinction profiles and the associated temperature profiles are used to determine the amount of denitrification of the winter polar stratospheres. Clear evidence of the denitrification process in the Antarctic data is seen. There are indications in the Arctic data that denitrification mec...

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Main Authors: Hamill, Patrick, Toon, O. B.
Format: Other/Unknown Material
Language:unknown
Published: 1990
Subjects:
Online Access:http://ntrs.nasa.gov/search.jsp?R=19900041441
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author Hamill, Patrick
Toon, O. B.
author_facet Hamill, Patrick
Toon, O. B.
author_sort Hamill, Patrick
collection NASA Technical Reports Server (NTRS)
description The SAM II extinction profiles and the associated temperature profiles are used to determine the amount of denitrification of the winter polar stratospheres. Clear evidence of the denitrification process in the Antarctic data is seen. There are indications in the Arctic data that denitrification mechanisms may be at work there also. At the latitudes observed by the SAM II satellite system, denitrification begins before the formation of extensive ice clouds and may be due to sedimentation of nitric acid particles. However, the possibility of dinitrification by type II PSCs at latitudes not observed by SAM II cannot be excluded.
format Other/Unknown Material
genre Antarc*
Antarctic
Arctic
genre_facet Antarc*
Antarctic
Arctic
geographic Antarctic
Arctic
The Antarctic
geographic_facet Antarctic
Arctic
The Antarctic
id ftnasantrs:oai:casi.ntrs.nasa.gov:19900041441
institution Open Polar
language unknown
op_collection_id ftnasantrs
op_coverage Unclassified, Unlimited, Publicly available
op_relation http://ntrs.nasa.gov/search.jsp?R=19900041441
Accession ID: 90A28496
op_rights Copyright
op_source Other Sources
publishDate 1990
record_format openpolar
spelling ftnasantrs:oai:casi.ntrs.nasa.gov:19900041441 2025-01-16T19:26:06+00:00 Denitrification of the polar winter stratosphere - Implications of SAM II cloud formation temperatures Hamill, Patrick Toon, O. B. Unclassified, Unlimited, Publicly available Mar 1, 1990 http://ntrs.nasa.gov/search.jsp?R=19900041441 unknown http://ntrs.nasa.gov/search.jsp?R=19900041441 Accession ID: 90A28496 Copyright Other Sources 46 Geophysical Research Letters, Supplement; 17; 441-444 1990 ftnasantrs 2012-02-15T18:28:08Z The SAM II extinction profiles and the associated temperature profiles are used to determine the amount of denitrification of the winter polar stratospheres. Clear evidence of the denitrification process in the Antarctic data is seen. There are indications in the Arctic data that denitrification mechanisms may be at work there also. At the latitudes observed by the SAM II satellite system, denitrification begins before the formation of extensive ice clouds and may be due to sedimentation of nitric acid particles. However, the possibility of dinitrification by type II PSCs at latitudes not observed by SAM II cannot be excluded. Other/Unknown Material Antarc* Antarctic Arctic NASA Technical Reports Server (NTRS) Antarctic Arctic The Antarctic
spellingShingle 46
Hamill, Patrick
Toon, O. B.
Denitrification of the polar winter stratosphere - Implications of SAM II cloud formation temperatures
title Denitrification of the polar winter stratosphere - Implications of SAM II cloud formation temperatures
title_full Denitrification of the polar winter stratosphere - Implications of SAM II cloud formation temperatures
title_fullStr Denitrification of the polar winter stratosphere - Implications of SAM II cloud formation temperatures
title_full_unstemmed Denitrification of the polar winter stratosphere - Implications of SAM II cloud formation temperatures
title_short Denitrification of the polar winter stratosphere - Implications of SAM II cloud formation temperatures
title_sort denitrification of the polar winter stratosphere - implications of sam ii cloud formation temperatures
topic 46
topic_facet 46
url http://ntrs.nasa.gov/search.jsp?R=19900041441