Abstract
Atomic emissions, especially from metastable atmospheric species, dominate the mid-day auroral optical spectrum. In addition to [0I]5577A and 6300 A lines, the [OII] lines at 3727-29A and 7320-30A as well as [NI] lines at 3466A and 5199-5201A are prominent. Unlike the night-time auroras, the cusp auroras are almost devoid of N +2 IP and N +2 2P bands. N +2 ING bands in mid-day auroras are probably enhanced through resonant scattering of sunlight by N +2 ions formed, in almost equal amounts, by particle impact on N2 and charge exchange of [OII] (2D) with N2.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Broadfoot, A. L., 1967. Planet. Space Sci. 15, 1801.
Deehr, C. S., Sivjee, G. G., Egeland, A. Henriksen, K., Sanholt, P.E., Smith, R., Sweeney, P., Duncan., and Gilner, W. J., J. Geophys. Res., 85, 2185.
Sivjee, G. G., Henriksen, K., and Deehr, C. S., 1980. J. Geophys. Res., (in press).
Wallace, L., 1959. J. Atmos. Terr. Phys.,17,, 46.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1980 D. Reidel Publishing Company
About this paper
Cite this paper
Sivjee, G.G., Deehr, C.S. (1980). Difference in Polar Atmospheric Optical Emissions Between Mid-Day and Night-Time Auroras. In: Deehr, C.S., Holtet, J.A. (eds) Exploration of the Polar Upper Atmosphere. NATO Advanced Study Institutes Series, vol 64. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-8417-2_16
Download citation
DOI: https://doi.org/10.1007/978-94-009-8417-2_16
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-009-8419-6
Online ISBN: 978-94-009-8417-2
eBook Packages: Springer Book Archive