An optical remote sensing technique for determining nighttime F region electron density
Article first published online: 7 DEC 2012
Copyright 1997 by the American Geophysical Union.
Volume 32, Issue 5, pages 1985–1996, September-October 1997
How to Cite
1997), An optical remote sensing technique for determining nighttime F region electron density, Radio Sci., 32(5), 1985–1996, doi:10.1029/97RS01887., , , and (
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Accepted: 3 JUL 1997
- Manuscript Received: 15 OCT 1996
We present a technique for using the measured variations of ultraviolet emissions produced by radiative recombination at 911 and 1356 Å to determine the nighttime altitude distribution of F region O+ ions and electrons. The algorithm uses an iterative scheme based on discrete inverse theory to determine the best fit to the data. We present the results of simulations that demonstrate the convergence properties of the algorithm and the fidelity with which it reproduces the input ionosphere. The algorithm was tested against more realistic simulated “data” generated using the international reference ionosphere (IRI-90) [Bilitza, 1990]. The algorithm accurately retrieved the nighttime F region electron density at midlatitudes (±25°–65°N) over a wide range of solar and geomagnetic activity and local time.