On the usefulness of topside HF noise measurements in determining foF2

Details On the usefulness of topside HF noise measurements in determining foF2 On the usefulness of topside HF noise measurements in determining foF2

Sep 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978jatp...40.1073r&link_type=abstract

Journal of Atmospheric and Terrestrial Physics, vol. 40, Sept. 1978, p. 1073-1079.

Computer Science

Sound

Critical Frequencies, F 2 Region, High Frequencies, Noise Measurement, Ionospheric Sounding, Night Sky, Radio Probing

Scientific paper

A study was undertaken to assess the operational usefulness of employing topside HF noise measurements to determine the F region critical frequency, foF2. Detailed comparisons have been made between observed values of foF2, foF2 inferred from topside noise measurements and predicted values of foF2. It was found that during daylight hours foF2 inferred from noise measurements yields values that are on the average comparable to those determined from predictions. During nighttime hours, however, it is found that foF2 values determined from noise measurements are a significant improvement compared to predicted values, and that noise measurements can under certain conditions provide a means of usefully estimating foF2 for operational purposes.

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