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Long-term prediction of the foF2 on the rising and falling parts of the solar cycle
Authors:EM Apostolov  LF Alberca  D Pancheva
Institution:

* Observatori de l'Ebre, 43520 Roquetes, Tarragona, Spain

** Geophysical Institute, BAS, 1113, Sofia, Bulgaria

Abstract:In this paper we intend to enlarge the fof2 long-term prediction accuracy taking into account the systematic variations of the hysteresis and secular-time phenomena.
Keywords:
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