Stratospheric NO2 over Antarctica as measured by the Solar Mesosphere Explorer during austral spring, 1986
This paper presents the results of polar NO2 measurements carried out by the SME satellite during the fall and spring of 1985 and 1986 and compares the results with observations at the north pole and the results of model calculations. During the austral spring, a polar low was observed in stratosphe...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19890026973 2023-05-15T13:41:01+02:00 Stratospheric NO2 over Antarctica as measured by the Solar Mesosphere Explorer during austral spring, 1986 Thomas, Ronald J. Rosenlof, Karen H. Clancy, R. Todd Zawodny, Joseph M. Unclassified, Unlimited, Publicly available Oct 20, 1988 http://ntrs.nasa.gov/search.jsp?R=19890026973 unknown http://ntrs.nasa.gov/search.jsp?R=19890026973 Accession ID: 89A14344 Copyright Other Sources 46 Journal of Geophysical Research; 93; 12561-12 1988 ftnasantrs 2012-02-15T17:55:58Z This paper presents the results of polar NO2 measurements carried out by the SME satellite during the fall and spring of 1985 and 1986 and compares the results with observations at the north pole and the results of model calculations. During the austral spring, a polar low was observed in stratospheric NO2 densities measured between 24 and 40 km, consistent with the predictions of standard photochemical theory. The geographic extent of the area of low NO2 densities was found to decrease as the hours of sunlight increased, in marked contrast to the behavior of the Antarctic ozone hole during the same period. A comparison of measurements with model calculations for NO2 imply that much of the odd nitrogen is converted to HNO3 during the polar night. Data also suggest no evidence that changes in high-altitude odd nitrogen are influencing the ozone below, or that the 'ozone hole' penetrates above 24 km to affect odd nitrogen there. Other/Unknown Material Antarc* Antarctic Antarctica North Pole polar night NASA Technical Reports Server (NTRS) Antarctic The Antarctic Austral North Pole |
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NASA Technical Reports Server (NTRS) |
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46 Thomas, Ronald J. Rosenlof, Karen H. Clancy, R. Todd Zawodny, Joseph M. Stratospheric NO2 over Antarctica as measured by the Solar Mesosphere Explorer during austral spring, 1986 |
topic_facet |
46 |
description |
This paper presents the results of polar NO2 measurements carried out by the SME satellite during the fall and spring of 1985 and 1986 and compares the results with observations at the north pole and the results of model calculations. During the austral spring, a polar low was observed in stratospheric NO2 densities measured between 24 and 40 km, consistent with the predictions of standard photochemical theory. The geographic extent of the area of low NO2 densities was found to decrease as the hours of sunlight increased, in marked contrast to the behavior of the Antarctic ozone hole during the same period. A comparison of measurements with model calculations for NO2 imply that much of the odd nitrogen is converted to HNO3 during the polar night. Data also suggest no evidence that changes in high-altitude odd nitrogen are influencing the ozone below, or that the 'ozone hole' penetrates above 24 km to affect odd nitrogen there. |
format |
Other/Unknown Material |
author |
Thomas, Ronald J. Rosenlof, Karen H. Clancy, R. Todd Zawodny, Joseph M. |
author_facet |
Thomas, Ronald J. Rosenlof, Karen H. Clancy, R. Todd Zawodny, Joseph M. |
author_sort |
Thomas, Ronald J. |
title |
Stratospheric NO2 over Antarctica as measured by the Solar Mesosphere Explorer during austral spring, 1986 |
title_short |
Stratospheric NO2 over Antarctica as measured by the Solar Mesosphere Explorer during austral spring, 1986 |
title_full |
Stratospheric NO2 over Antarctica as measured by the Solar Mesosphere Explorer during austral spring, 1986 |
title_fullStr |
Stratospheric NO2 over Antarctica as measured by the Solar Mesosphere Explorer during austral spring, 1986 |
title_full_unstemmed |
Stratospheric NO2 over Antarctica as measured by the Solar Mesosphere Explorer during austral spring, 1986 |
title_sort |
stratospheric no2 over antarctica as measured by the solar mesosphere explorer during austral spring, 1986 |
publishDate |
1988 |
url |
http://ntrs.nasa.gov/search.jsp?R=19890026973 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Antarctic The Antarctic Austral North Pole |
geographic_facet |
Antarctic The Antarctic Austral North Pole |
genre |
Antarc* Antarctic Antarctica North Pole polar night |
genre_facet |
Antarc* Antarctic Antarctica North Pole polar night |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19890026973 Accession ID: 89A14344 |
op_rights |
Copyright |
_version_ |
1766144477497393152 |