About the relationship between auroral electrojets and ring currents
The relationship between the storm-time ring current and the auroral electrojets is investigated using IMAGE magnetometer data, <i>D<sub>St</sub></i> and H-SYM, and solar wind data. Statistical results as well as the investigation of single events show that the auroral ele...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2000-08-01
|
| Series: | Annales Geophysicae |
| Online Access: | https://www.ann-geophys.net/18/874/2000/angeo-18-874-2000.pdf |
| Summary: | The relationship between the storm-time ring
current and the auroral electrojets is investigated using IMAGE magnetometer
data, <i>D<sub>St</sub></i> and H-SYM, and solar wind data. Statistical results
as well as the investigation of single events show that the auroral electrojets
occur also during nonstorm conditions without storm-time ring current
development and even during the storm recovery phase of increasing <i>D<sub>St</sub></i>.
A close correlation between electrojet intensity and ring current intensity was
not found. Though the eastward electrojet moves equatorward during the storm
main phase there is no unequivocal relationship between the movement of the
westward electrojet and the ring current development. All these results suggest
that the auroral electrojets and the ring current develop more or less
independently of each other.<br><br><b>Key words: </b>Magnetospheric physics
(magnetosphere-ionosphere interactions; storms and substorms) |
|---|---|
| ISSN: | 0992-7689 1432-0576 |