February 1969 | NTIA Technical Memo ERL TM ITS 156
Validity of revision factors in updating long-term F2-layer maximum usable frequency predictions,
D. H. Zacharisen; S M Ostrow; Gene C. Huang
Abstract: Based on trends of recent ionospheric and solar data, the IPR series of Semimonthly Revision Factors for ITS Ionospheric Predictions provides corrections to the monthly ITS Ionospheric Predictions for F2-layer MUF. Accuracy of the IPR revision factors was investigated by comparing them with observed data at eight typical ionosphere stations. Results indicate that use of the IPR factors tends to improve the accuracy of ionospheric predictions. Improvement of IPR factors by development of more efficient, objective methods of preparation is recommended.
Disclaimer: Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.