The global distribution of thermospheric odd nitrogen for solstice conditions during solar cycle minimum
A two-dimensional model of odd nitrogen in the thermosphere and upper mesosphere is described. The global distributions of nitric oxide and atomic nitrogen are calculated for the solstice period for quiet and moderate magnetic activity during the solar minimum period. The effect of thermospheric tra...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19840043387 2023-05-15T18:02:15+02:00 The global distribution of thermospheric odd nitrogen for solstice conditions during solar cycle minimum Gerard, J.-C. Roble, R. G. Rusch, D. W. Stewart, A. I. Unclassified, Unlimited, Publicly available Mar 1, 1984 http://ntrs.nasa.gov/search.jsp?R=19840043387 unknown http://ntrs.nasa.gov/search.jsp?R=19840043387 Accession ID: 84A26174 Copyright Other Sources 46 Journal of Geophysical Research; 89; 1725-173 1984 ftnasantrs 2012-02-15T15:51:24Z A two-dimensional model of odd nitrogen in the thermosphere and upper mesosphere is described. The global distributions of nitric oxide and atomic nitrogen are calculated for the solstice period for quiet and moderate magnetic activity during the solar minimum period. The effect of thermospheric transport by winds is investigated along with the importance of particle-induced ionization in the auroral zones. The results are compared with rocket and satellite measurements, and the sensitivity of the model to eddy diffusion and neutral winds is investigated. Downward fluxes of NO into the mesosphere are given, and their importance for stratospheric ozone is discussed. The results show that the summer-to-winter pole meridional circulation transports both NO and N(S-4) across the solar terminator into the polar night region where there is a downward vertical transport toward the mesosphere. The model shows that odd nitrogen densities at high winter latitudes are entirely controlled by particle precipitation and transport processes. Other/Unknown Material polar night NASA Technical Reports Server (NTRS) |
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NASA Technical Reports Server (NTRS) |
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46 Gerard, J.-C. Roble, R. G. Rusch, D. W. Stewart, A. I. The global distribution of thermospheric odd nitrogen for solstice conditions during solar cycle minimum |
topic_facet |
46 |
description |
A two-dimensional model of odd nitrogen in the thermosphere and upper mesosphere is described. The global distributions of nitric oxide and atomic nitrogen are calculated for the solstice period for quiet and moderate magnetic activity during the solar minimum period. The effect of thermospheric transport by winds is investigated along with the importance of particle-induced ionization in the auroral zones. The results are compared with rocket and satellite measurements, and the sensitivity of the model to eddy diffusion and neutral winds is investigated. Downward fluxes of NO into the mesosphere are given, and their importance for stratospheric ozone is discussed. The results show that the summer-to-winter pole meridional circulation transports both NO and N(S-4) across the solar terminator into the polar night region where there is a downward vertical transport toward the mesosphere. The model shows that odd nitrogen densities at high winter latitudes are entirely controlled by particle precipitation and transport processes. |
format |
Other/Unknown Material |
author |
Gerard, J.-C. Roble, R. G. Rusch, D. W. Stewart, A. I. |
author_facet |
Gerard, J.-C. Roble, R. G. Rusch, D. W. Stewart, A. I. |
author_sort |
Gerard, J.-C. |
title |
The global distribution of thermospheric odd nitrogen for solstice conditions during solar cycle minimum |
title_short |
The global distribution of thermospheric odd nitrogen for solstice conditions during solar cycle minimum |
title_full |
The global distribution of thermospheric odd nitrogen for solstice conditions during solar cycle minimum |
title_fullStr |
The global distribution of thermospheric odd nitrogen for solstice conditions during solar cycle minimum |
title_full_unstemmed |
The global distribution of thermospheric odd nitrogen for solstice conditions during solar cycle minimum |
title_sort |
global distribution of thermospheric odd nitrogen for solstice conditions during solar cycle minimum |
publishDate |
1984 |
url |
http://ntrs.nasa.gov/search.jsp?R=19840043387 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
polar night |
genre_facet |
polar night |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19840043387 Accession ID: 84A26174 |
op_rights |
Copyright |
_version_ |
1766172038587744256 |