A new ionospheric index MF2

Details A new ionospheric index MF2 A new ionospheric index MF2

Feb 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995adspr..15...93m&link_type=abstract

Advances in Space Research (ISSN 0273-1177), vol. 15, no. 2, p. 93-97

Computer Science

Sound

5

Accuracy, Annual Variations, F 2 Region, Indexes (Ratios), Prediction Analysis Techniques, Reference Atmospheres, Regression Analysis, Solar Activity, Solar Cycles, Solar Terrestrial Interactions, Ionosondes, Ionospheric Sounding, Solar Flux, Zenith

Scientific paper

A new ionospheric index MF2 to improve monthly median foF2 regression and prediction accuracy is proposed. The interhemispheric magnetic conjunction of the F2-region was used to derive this index for the northern hemisphere. Since the monthly MF2 index varies in regular way with the season and in the course of solar cycle this allows an easy long-term prediction. Using MF2 instead of direct solar R12 index considerably improves the quality of the foF2 versus solar activity level regression (by 30% for middle, and by 10% for high latitudes.) For the rising phase of solar cycle 22, MF2 yields much better foF2 prediction accuracy than Consultative Committee on International Radiopropagation (CCIR) numerical maps can achieve.

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