The transport of resonance radiation in a nonisothermal medium—the effect of a varying Doppler width
Article first published online: 20 SEP 2012
Copyright © 1979 by the American Geophysical Union.
Journal of Geophysical Research: Space Physics (1978–2012)
Volume 84, Issue A10, pages 5890–5896, 1 October 1979
How to Cite
1979), The transport of resonance radiation in a nonisothermal medium—the effect of a varying Doppler width, J. Geophys. Res., 84(A10), 5890–5896, doi:10.1029/JA084iA10p05890.(
- Issue published online: 20 SEP 2012
- Article first published online: 20 SEP 2012
- Manuscript Accepted: 7 MAY 1979
- Manuscript Received: 16 MAR 1979
A method is presented for treating the transport of resonance radiation under the influence of a varying Doppler width resulting from temperature changes. The method is applied to transport of resonance photons in the earth's thermosphere for media of modest and large optical depths. The drop in temperature below the exosphere can lead to almost a factor of two reduction in the nadir viewing intensity observed, e.g., from satellites. The effect is weaker, however, for zenith viewing intensities, especially in the isothermal region.