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Fontana, Giulio
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Fontana, Giulio
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giulio.fontana@ingv.it
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staff
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- PublicationRestrictedOblique-incidence ionospheric soundings over Central Europe and their application for testing now casting and long term prediction models(2009-06-02)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ;Pietrella, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Perrone, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Fontana, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Romano, V.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Malagnini, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Tutone, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Zolesi, B.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Cander, Lj. R.; Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, UK ;Belehaki, A.; National Observatory, Institute for Space Applications and Remote Sensing, 15236 P. Penteli, Athens, Greece ;Tsagouri, I.; National Observatory, Institute for Space Applications and Remote Sensing, 15236 P. Penteli, Athens, Greece ;Kouris, S. S.; Department of Electrical and Computer Engineering, Aristotelian University of Thessaloniki, Thessaloniki, Greece ;Vallianatos, F.; Technological Educational Institute of Crete, P.O. Box 1939 Chania, Crete, Greece ;Makris, J.; Technological Educational Institute of Crete, P.O. Box 1939 Chania, Crete, Greece ;Angling, M.; Centre for RF Propagation and Atmospheric Research, QinetiQ, Malvern Worcestershire WR14 3PS, UK; ; ; ; ; ; ; ; ; ; ; ; ; After a first oblique-incidence ionospheric sounding campaign over Central Europe performed during the period 2003–2004 over the radio links between Inskip (UK, 53.5°N, 2.5°W) and Rome (Italy, 41.8°N, 12.5°E) and between Inskip and Chania (Crete, 35.7°N, 24.0°E), new and more extensive analysis of systematic MUF measurements from January 2005 to December 2006 have been performed. MUF measurements collected during moderately disturbed days (17 ≤ Ap ≤ 32), disturbed days (32 < Ap ≤ 50) and very disturbed days (Ap > 50), have been used to test the long term prediction models (ASAPS, ICEPAC and SIRM&LKW), and the now casting models (SIRMUP&LKW and ISWIRM&LKW). The performances of the different prediction methods in terms of r.m.s are shown for selected range of geomagnetic activity and for each season.635 36 - PublicationRestrictedA new campaign for oblique-incidence ionospheric sounding over Europe and its data application(2008)
; ; ; ; ; ; ; ; ; ; ; ; ;Zolesi, B.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Fontana, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Perrone, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Pietrella, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Romano, V.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Tutone, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Belehaki, A.; National Observatory of Athens, Institute for Space Applications and Remote Sensing, Greece ;Tsagouri, I.; National Observatory of Athens, Institute for Space Applications and Remote Sensing, Greece ;Kouris, S. S.; Aristotle University of Thessaloniki, Greece ;Vallianatos, F.; Technological Educational Institute of Crete, Greece ;Makris, J. P.; Technological Educational Institute of Crete, Greece ;Angling, M. J.; Centre for RF Propagation and Atmospheric Research, QinetiQ, UK; ; ; ; ; ; ; ; ; ; ; New systematic oblique ionospheric radio sounding measurements over Central Europe, concerning the radio links between Inskip (UK, 53.51N, 2.51W) and Rome (Italy, 41.81N, 12.51E) and between Inskip and Chania (Greece, 35.71N, 24.01E), have been performed since November 2003. Different long-term (i.e. monthly median) ionospheric predictions and nowcasting techniques have been applied and compared with the oblique-incidence radio sounding measurements. The MUF (basic maximum usable frequency) measurements observed during the early part of the experiment have been used to compare the performances of different methods. The preliminary analysis has shown good performances for the long-term prediction models, in particular in winter months for ICEPAC (ionospheric communications enhanced profile analysis and circuit) and in equinox/summer months for ASAPS (advanced stand-alone prediction system) and SIRM&LKW (simplified ionospheric regional model & lockwood). The nowcasting methods SIRMUP&LKW (SIRM updating method & lockwood) and ISWIRM (instantaneous space weighted ionospheric regional model) reveal good results for moderate and disturbed geomagnetic conditions when compared with the long-term prediction methods.423 33