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| Titel |
Global modelling study (GSM TIP) of the ionospheric effects of excited N2, convection and heat fluxes by comparison with EISCAT and satellite data for 31 July 1990 |
| VerfasserIn |
Yu. N. Korenkov, V. V. Klimenko, M. Forster, V. A. Surotkin, J. Smilauer |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 14, no. 12 ; Nr. 14, no. 12, S.1362-1374 |
| Datensatznummer |
250012502
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| Publikation (Nr.) |
 copernicus.org/angeo-14-1362-1996.pdf |
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| Zusammenfassung |
| Near-earth plasma parameters were calculated
using a global numerical self-consistent and time-dependent model of the
thermosphere, ionosphere and protonosphere (GSM TIP). The model results are
compared with experimental data of different origin, mainly EISCAT measurements
and simultaneous satellite data (Ne and ion composition).
Model runs with varying inputs of auroral FAC distributions, temperature of
vibrationally excited nitrogen and photoelectron energy escape fluxes are used
to make adjustments to the observations. The satellite data are obtained onboard
Active and its subsatellite Magion-2 when they passed nearby the EISCAT station
around 0325 and 1540 UT on 31 July 1990 at a height of about 2000 and 2200 km,
respectively. A strong geomagnetic disturbance was observed two days before the
period under study. Numerical calculations were performed with consideration of
vibrationally excited nitrogen molecules for high solar-activity conditions. The
results show good agreement between the incoherent-scatter radar measurements (Ne,
Te, Ti) and model calculations, taking into
account the excited molecular nitrogen reaction rates. The comparison of model
results of the thermospheric neutral wind shows finally a good agreement with
the HWM93 empirical wind model. |
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