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Effectiveness of the IRI-2001-predicted N(h) profile updating with real-time measurements under intense geomagnetic storm conditions over Europe
Author(s)
Language
English
Status
Published
Peer review journal
Yes
Title of the book
Issue/vol(year)
37(2006)
Publisher
Elsevier
Pages (printed)
1061–1068
Issued date
2006
Keywords
Abstract
It is well known that as long as variations in the ionosphere follow regular patterns, the latest version of the International Reference
Ionosphere IRI-2001 model estimates sufficiently accurate NmF2 and other parameters relevant for the ionospheric effects on radio wave
propagation. During geomagnetic storms, it is desirable that for the IRI-2001 model to be tested against available observations. This
paper presents the comparison of the IRI-2001-generated electron density (N(h)) profiles with those updated using measured values over
European area during October and November 2003 geomagnetic super storms. Ionospheric stations involved in this study are Athens,
Chilton, Rome, Juliusruh and Tromso. These stations provide real-time ionospheric characteristics and N(h) profiles regularly within the
framework of the EU COST271 Action on ‘‘Effects of the upper atmosphere on terrestrial and earth-space communications’’. Comparative
analysis shows that significant discrepancies do exist predominantly during the storm main phase. The model not always estimates
correctly the phase and the magnitude of intense geomagnetic storm effects on the daytime F2 layer peak electron density at different
European latitudes. Results are discussed in the context of real-time N(h) profile updating capabilities and effectiveness.
2006 COSPAR. Published by Elsevier Ltd. All rights reserved.
Ionosphere IRI-2001 model estimates sufficiently accurate NmF2 and other parameters relevant for the ionospheric effects on radio wave
propagation. During geomagnetic storms, it is desirable that for the IRI-2001 model to be tested against available observations. This
paper presents the comparison of the IRI-2001-generated electron density (N(h)) profiles with those updated using measured values over
European area during October and November 2003 geomagnetic super storms. Ionospheric stations involved in this study are Athens,
Chilton, Rome, Juliusruh and Tromso. These stations provide real-time ionospheric characteristics and N(h) profiles regularly within the
framework of the EU COST271 Action on ‘‘Effects of the upper atmosphere on terrestrial and earth-space communications’’. Comparative
analysis shows that significant discrepancies do exist predominantly during the storm main phase. The model not always estimates
correctly the phase and the magnitude of intense geomagnetic storm effects on the daytime F2 layer peak electron density at different
European latitudes. Results are discussed in the context of real-time N(h) profile updating capabilities and effectiveness.
2006 COSPAR. Published by Elsevier Ltd. All rights reserved.
References
Araujo-Pradere, E.A., Fuller-Rowell, T.J. Evaluation of the storm-time
ionospheric empirical model for the Bastille Day event. Solar Phys.
2004, 317–324, 2001.
Araujo-Pradere E.A., Fuller-Rowell T.J., Codrescu, M.V., Storm: an
empirical storm-time ionospheric correction model – 1. Model
description, Radio Science, 37 (5), Art. No. 1070, 2002.
Araujo-Pradere, E.A., Fuller-Rowell, T.J. Storm: an empirical storm-time
ionospheric correction model – 2. Validation, Radio Science, 37 (5),
Art. No. 1071, 2002.
Araujo-Pradere, E.A., Fuller-Rowell, T.J. Time Empirical Ionospheric
Correction Model (STORM) response in IRI2000 and challenges for
empirical modelling in future. Radio Sci., 39, 2004.
Buresova, D., Lastovicka, J., Altadill, D., Miro, G. Daytime electron
density at the F1-region in Europe during geomagnetic storm. Ann.
Geophys. 20, 1–15, 2002.
Buresova, D., Cander, Lj.R., Vernon, A., Zolesi, B. Real-time ionospheric
N(h) profile updating over Europe using IRI-2000 model. Adv. Radio
Sci. 2, 299–303, 2004a.
Buresova, D., Altadill, D., Mosert, M., Miro, G. Predicted and measured
botomside F-region electron density and variability of the D1
parameter under quiet and disturbed conditions over Europe. Adv.
Space Res. 34, 1973–1981, 2004b.
Fuller-Rowell, T.J., Araujo-Pradere, E.A., Codrescu, M.V. An empirical
ionospheric storm-time correction model. Adv. Space Res. 25 (1), 139–
148, 2000.
Reinisch, B.W., Huang, X., Galkin, I.A., Paznukhov, V., Kozlov, A.
Recent advances in real-time analysis of ionograms and ionospheric
drift measurements with digisondes. J. Atmos. Solar-Terr. Phys. 67
(12), 1054–1062, 2005.
Zolesi, B., Cander, Lj. R. Effects of the upper atmosphere on terrestrial
and Earth-space communications, IEE Conf. Proc. No. 491, vol. 2,
565–568, 2003.
Zolesi, B., Belehaki, A., Tsagouri, I., Cander, Lj.R. Real-time updating of
the simplified ionospheric regional model for operational applications.
Radio Sci. 39, RS2011, 2004.
ionospheric empirical model for the Bastille Day event. Solar Phys.
2004, 317–324, 2001.
Araujo-Pradere E.A., Fuller-Rowell T.J., Codrescu, M.V., Storm: an
empirical storm-time ionospheric correction model – 1. Model
description, Radio Science, 37 (5), Art. No. 1070, 2002.
Araujo-Pradere, E.A., Fuller-Rowell, T.J. Storm: an empirical storm-time
ionospheric correction model – 2. Validation, Radio Science, 37 (5),
Art. No. 1071, 2002.
Araujo-Pradere, E.A., Fuller-Rowell, T.J. Time Empirical Ionospheric
Correction Model (STORM) response in IRI2000 and challenges for
empirical modelling in future. Radio Sci., 39, 2004.
Buresova, D., Lastovicka, J., Altadill, D., Miro, G. Daytime electron
density at the F1-region in Europe during geomagnetic storm. Ann.
Geophys. 20, 1–15, 2002.
Buresova, D., Cander, Lj.R., Vernon, A., Zolesi, B. Real-time ionospheric
N(h) profile updating over Europe using IRI-2000 model. Adv. Radio
Sci. 2, 299–303, 2004a.
Buresova, D., Altadill, D., Mosert, M., Miro, G. Predicted and measured
botomside F-region electron density and variability of the D1
parameter under quiet and disturbed conditions over Europe. Adv.
Space Res. 34, 1973–1981, 2004b.
Fuller-Rowell, T.J., Araujo-Pradere, E.A., Codrescu, M.V. An empirical
ionospheric storm-time correction model. Adv. Space Res. 25 (1), 139–
148, 2000.
Reinisch, B.W., Huang, X., Galkin, I.A., Paznukhov, V., Kozlov, A.
Recent advances in real-time analysis of ionograms and ionospheric
drift measurements with digisondes. J. Atmos. Solar-Terr. Phys. 67
(12), 1054–1062, 2005.
Zolesi, B., Cander, Lj. R. Effects of the upper atmosphere on terrestrial
and Earth-space communications, IEE Conf. Proc. No. 491, vol. 2,
565–568, 2003.
Zolesi, B., Belehaki, A., Tsagouri, I., Cander, Lj.R. Real-time updating of
the simplified ionospheric regional model for operational applications.
Radio Sci. 39, RS2011, 2004.
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