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| Titel |
Longitudinal effects of ionospheric responses to substorms at middle and lower latitudes: a case study |
| VerfasserIn |
X. Pi, M. Mendillo, P. Spalla, D. N. Anderson |
| 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 ; 13, no. 8 ; Nr. 13, no. 8, S.863-870 |
| Datensatznummer |
250011960
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| Publikation (Nr.) |
 copernicus.org/angeo-13-863-1995.pdf |
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| Zusammenfassung |
| An ionospheric model is used to simulate
total electron content (TEC) disturbance events observed at middle and lower
latitude sites near 75°W and 7°E longitudes. Within this longitudinal range,
daytime TEC disturbances show patterns that are correlated with substrom
activity seen in both auroral electrojet and ring current behavior. In modeling
studies of the observed ionospheric effects, both electric field and neutral
wind perturbations are examined as possible mechanisms. The morphological
features of the required electric field perturbations near drawn and dusk are
compared with those at other times to examine the local time characteristics of
magnetospheric influence. Large-scale traveling atmospheric disturbances (TADs),
an alternative candidate for the disturbance source, are also characterized and
compared with known thermospheric behavior. |
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