Other
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmsa14a..04c&link_type=abstract
American Geophysical Union, Fall Meeting 2005, abstract #SA14A-04
Other
2415 Equatorial Ionosphere, 2437 Ionospheric Dynamics, 2443 Midlatitude Ionosphere, 2447 Modeling And Forecasting, 2494 Instruments And Techniques
Scientific paper
We present electron density profiles derived by inversion of ultraviolet limb radiances and comparisons of this data with other ionospheric sensor and models. The O+ density profile, which is approximately equal to the electron density profile in the F-region ionosphere, was determined by inverting the limb radiance profile of O I 1356 Å emission of atomic oxygen; the 1356Å emission is produced purely by radiative recombination of O+ ions and electrons at night and has been shown to be a viable means of globally sensing the ionospheric state. Dymond et al. [Geophys. Res. Lett., Vol. 28, No. 5, 927-930, 2001] showed a preliminary validation of this technique covering a single day of observations. We have performed a more extended validation of the retrieved peak electron density, peak height, total electron content, and topside scale height by comparisons with nearly coincident ionosonde and TOPEX measurements. In particular, we investigate the effects of low latitude ionospheric gradients on the comparisons.
Coker Clayton
Dymond Ken F.
Thonnard Stefan E.
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