Physics – Plasma Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsa42a..02h&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #SA42A-02
Physics
Plasma Physics
[7803] Space Plasma Physics / Active Perturbation Experiments, [7845] Space Plasma Physics / Particle Acceleration, [7894] Space Plasma Physics / Instruments And Techniques
Scientific paper
The electron energy distribution during an F region ionospheric modification experiment is inferred from spectrographic airglow emission data. Emission lines at 630.0, 557.7, and 844.6 nm are considered along with the absence of detectable emissions at 427.8 nm. Estimating the electron energy distribution function from the airglow data is a problem in classical linear inverse theory. We describe an augmented version of the method of Backus and Gilbert which we use to invert the data. The method optimizes the model resolution, the precision of the mapping between the actual electron energy distribution and its estimate. Here, the method has also been augmented so as to limit the model prediction error. Our methodology predicts a heater-induced electron energy spectrum with a peak near 5 eV that decreases by almost three orders of magnitude between 5--30 eV.
Hysell Dave L.
Vlasov M.
Watkins Brenton J.
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