DIAS effective sunspot number as an indicator of the ionospheric activity level over Europe

• Autorzy: Tsaqouri I. , Zolesi B. , Cander L.R. , Belehaki A.
• Języki publikacji: EN

Abstrakty

EN

DIAS (European Digital Upper Atmosphere Server) effective sunspot number - R12eff was recently introduced as a proxy of the ionospheric conditions over Europe for regional ionospheric mapping purposes. Although a pre-processing step for the real-time update of the Simplified Ionospheric Regional Model (SIRM) to real-time conditions, R12eff is available in real time by DIAS system (http://dias.space.noa.gr) for independent operational use. In this paper we discuss the efficiency of R12eff to specify ionospheric conditions over Europe. For this purpose, the diurnal R12eff's reference pattern was determined on monthly basis and for different solar cycle phases. The deviation of the real-time R12eff estimates from the reference values, R12eff was found to be highly correlated with the foF2 storm-time disturbances, especially during large scale effects indicating that DIAS-R12eff can provide a reliable estimator of the ionospheric activity level over a substantial part of Europe and a powerful tool for ionospheric specification applications.

Słowa kluczowe

EN

effective sunspot number; mid-latitude ionosphere; ionospheric disturbances

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2010
• Tom: Vol. 58, no. 3
• Strony: 491--512
• Opis fizyczny: Bibliogr. 21 poz.

Twórcy

autor

Tsaqouri I.

autor

Zolesi B.

autor

Cander L.R.

autor

Belehaki A.

• National Observatory of Athens, Institute for Space Applications and Remote Sensing,

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