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Title: Determination of nitric oxide concentrations from sunrise E-region electron density measurements

Abstract

Midlatitude sunrise electron density profiles have been analyzed in order to determine nitric oxide concentrations in the range 100-160 km. In general, the determinations are restricted to heights for which the ionization of nitric oxide by direct solar Lyman-$alpha$ radiation is the main contribution to the growth of the E region. The concentrations obtained are larger, by factors of approximately 3 to 4, than those obtained from the midlatitude airglow measurements of other workers. Concentrations have been obtained from one sunset measurement and these are significantly lower than the sunrise values. The results also give a clear indication of increasing nitric oxide concentrations above 120 km with increasing solar activity. (auth)

Authors:
;
Publication Date:
Research Org.:
Univ. of Illinois, Urbana
OSTI Identifier:
4188040
NSA Number:
NSA-33-001761
Resource Type:
Journal Article
Journal Name:
Radio Sci., v. 10, no. 3, pp. 317-323
Additional Journal Information:
Other Information: Orig. Receipt Date: 30-JUN-76
Country of Publication:
United States
Language:
English
Subject:
N58100* -Physics (Atmospheric)-Auroral & Ionospheric Phenomena; 640201* -Physics Research-Atmospheric Physics-Auroral & Ionospheric Phenomena; *E REGION- IONIC COMPOSITION; AIRGLOW; LATITUDE EFFECT; LYMAN LINES; NITROGEN; NITROGEN IONS; NITROGEN OXIDES; OXYGEN; OXYGEN IONS; SOLAR ACTIVITY; SOLAR RADIATION

Citation Formats

Monro, P E, and Smith, L G. Determination of nitric oxide concentrations from sunrise E-region electron density measurements. United States: N. p., 1975. Web.
Monro, P E, & Smith, L G. Determination of nitric oxide concentrations from sunrise E-region electron density measurements. United States.
Monro, P E, and Smith, L G. Sat . "Determination of nitric oxide concentrations from sunrise E-region electron density measurements". United States.
@article{osti_4188040,
title = {Determination of nitric oxide concentrations from sunrise E-region electron density measurements},
author = {Monro, P E and Smith, L G},
abstractNote = {Midlatitude sunrise electron density profiles have been analyzed in order to determine nitric oxide concentrations in the range 100-160 km. In general, the determinations are restricted to heights for which the ionization of nitric oxide by direct solar Lyman-$alpha$ radiation is the main contribution to the growth of the E region. The concentrations obtained are larger, by factors of approximately 3 to 4, than those obtained from the midlatitude airglow measurements of other workers. Concentrations have been obtained from one sunset measurement and these are significantly lower than the sunrise values. The results also give a clear indication of increasing nitric oxide concentrations above 120 km with increasing solar activity. (auth)},
doi = {},
journal = {Radio Sci., v. 10, no. 3, pp. 317-323},
number = ,
volume = ,
place = {United States},
year = {1975},
month = {3}
}