Document Type

Article

Publication Date

1985

Abstract

The densities and vibrational distributions of N2+ in the X²Σg+, A²Πu, and B²Σu+ states in the daytime terrestrial ionosphere are computed for both low and high solar activity. Altitude profiles of the relative populations of the vibrational levels of N2+X²Σg+ are presented. The fraction of vibrationally excited N2+ varies from 5% at 100 km to 50% at 450 km. Several models are examined in which loss of N2+(v) is enhanced for v > 0 and in which various assumptions are made about the vibrational distributions produced in charge transfer reactions. The N2+ densities are significantly reduced if N2+(v) reacts with O at rates which are near gas-kinetic. Vibrational distributions of the A²Πu and B²Σu+ states are also presented, as well as volume emission rates and integrated overhead intensities of the major bands of the Meinel and first negative systems.

Comments

Copyright © 1985 by the American Geophysical Union.

The following article appeared in the Journal of Geophysical Research: Space Physics 90(A8), and may be found at http://onlinelibrary.wiley.com/doi/10.1029/JA090iA08p07557/full

Permission to Deposit an Article in an Institutional Repository:

Adopted by Council 13 December 2009.

AGU allows authors to deposit their journal articles if the version is the final published citable version of record, the AGU copyright statement is clearly visible on the posting, and the posting is made 6 months after official publication by the AGU.

DOI

10.1029/JA090iA08p07557

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