Estimation of atomic oxygen concentrations from measured intensities of infrared nitric oxide radiation

The vibrational distribution of nitric oxide in the polar ionosphere computed according to the one-dimensional non-steady model of chemical and vibrational kinetics of the upper atmosphere has been compared with experimental data from rocket measurement. Some input parameters of the model have b...

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Main Authors: A. S. Kirillov, G. A. Aladjev
Format: Article
Language:English
Published: Copernicus Publications 1998-07-01
Series:Annales Geophysicae
Online Access:https://www.ann-geophys.net/16/847/1998/angeo-16-847-1998.pdf
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author A. S. Kirillov
G. A. Aladjev
author_facet A. S. Kirillov
G. A. Aladjev
author_sort A. S. Kirillov
collection DOAJ
description The vibrational distribution of nitric oxide in the polar ionosphere computed according to the one-dimensional non-steady model of chemical and vibrational kinetics of the upper atmosphere has been compared with experimental data from rocket measurement. Some input parameters of the model have been varied to obtain the least-averaged deviation of the calculated population from experimental one. It is shown that the least deviation of our calculations from experimental measurements depends sufficiently on both the surprisal parameter of the production reaction of metastable atomic nitrogen with molecular oxygen and the profile of atomic oxygen concentration. The best agreement with the MSIS-83 profile was obtained for the value of surprisal parameter corresponding to recent laboratory estimations. The measured depression of level <i>v</i>=2 is obtained in the calculation that uses sufficiently increased concentrations of atomic oxygen. It is pointed out that similar measurements of infrared radiation intensities could be used to estimate the atomic oxygen concentrations during auroral disturbances of the upper atmosphere.<br><br><b>Keywords.</b> Atmospheric composition and structure (airglow and aurora); Ionosphere (auroral ionosphere; ion chemistry and composition).
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spelling doaj.art-fbd7f29f9be940e9ab669df9dd4fdc552022-12-22T02:11:24ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-05761998-07-011684785210.1007/s00585-998-0847-6Estimation of atomic oxygen concentrations from measured intensities of infrared nitric oxide radiationA. S. Kirillov0G. A. Aladjev1Polar Geophysical Institute, Fersman str., 14, Apatity, Murmansk region, 184200, RussiaPolar Geophysical Institute, Fersman str., 14, Apatity, Murmansk region, 184200, RussiaThe vibrational distribution of nitric oxide in the polar ionosphere computed according to the one-dimensional non-steady model of chemical and vibrational kinetics of the upper atmosphere has been compared with experimental data from rocket measurement. Some input parameters of the model have been varied to obtain the least-averaged deviation of the calculated population from experimental one. It is shown that the least deviation of our calculations from experimental measurements depends sufficiently on both the surprisal parameter of the production reaction of metastable atomic nitrogen with molecular oxygen and the profile of atomic oxygen concentration. The best agreement with the MSIS-83 profile was obtained for the value of surprisal parameter corresponding to recent laboratory estimations. The measured depression of level <i>v</i>=2 is obtained in the calculation that uses sufficiently increased concentrations of atomic oxygen. It is pointed out that similar measurements of infrared radiation intensities could be used to estimate the atomic oxygen concentrations during auroral disturbances of the upper atmosphere.<br><br><b>Keywords.</b> Atmospheric composition and structure (airglow and aurora); Ionosphere (auroral ionosphere; ion chemistry and composition).https://www.ann-geophys.net/16/847/1998/angeo-16-847-1998.pdf
spellingShingle A. S. Kirillov
G. A. Aladjev
Estimation of atomic oxygen concentrations from measured intensities of infrared nitric oxide radiation
Annales Geophysicae
title Estimation of atomic oxygen concentrations from measured intensities of infrared nitric oxide radiation
title_full Estimation of atomic oxygen concentrations from measured intensities of infrared nitric oxide radiation
title_fullStr Estimation of atomic oxygen concentrations from measured intensities of infrared nitric oxide radiation
title_full_unstemmed Estimation of atomic oxygen concentrations from measured intensities of infrared nitric oxide radiation
title_short Estimation of atomic oxygen concentrations from measured intensities of infrared nitric oxide radiation
title_sort estimation of atomic oxygen concentrations from measured intensities of infrared nitric oxide radiation
url https://www.ann-geophys.net/16/847/1998/angeo-16-847-1998.pdf
work_keys_str_mv AT askirillov estimationofatomicoxygenconcentrationsfrommeasuredintensitiesofinfrarednitricoxideradiation
AT gaaladjev estimationofatomicoxygenconcentrationsfrommeasuredintensitiesofinfrarednitricoxideradiation