Further improvements to the inversion of elevation-scan backscatter sounding data

Details Further improvements to the inversion of elevation-scan backscatter sounding data Further improvements to the inversion of elevation-scan backscatter sounding data

Jan 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997jastp..59..125l&link_type=abstract

Journal of Atmospheric and Terrestrial Physics, v. 59, p. 125-138.

Physics

2

Scientific paper

Based upon a multi-frequency sounding scheme, an algorithm to improve the inversion of HF elevation-scan backscatter sounding data is described. The efficiency of the algorithm is evaluated by computing the mean and the standard deviation of the differences between inverted parameter values and `true' values obtained from vertical incidence sounding. The influence of the use of an estimator weighted over frequencies by the a posteriori probability density and the influence of a model of the lower ionosphere on the quality of the results are both considered. From both daytime and night-time data, it is found that vertical incidence parameter values are recovered from the inversion of mid-latitude oblique sounding backscatter data with a mean error of less than 4% for foF2 and 11% for hmF2 and with a standard deviation less than 11% for both parameters. The usefulness of the algorithm to aid coordinate registration for over-the-horizon (OTH) radar is discussed and demonstrated.

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