Afternoon mid-latitude current system and low-latitude geomagnetic field asymmetry during geomagnetic storms
For four geomagnetic storms of middle intensity the relationship between the low-latitude magnetic field asymmetry using ASY indices and the intensity of the auroral eastward and westward electrojet was considered. It was asked whether there exists a connection between ASY and the eastward elect...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
1997-12-01
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| Series: | Annales Geophysicae |
| Online Access: | https://www.ann-geophys.net/15/1537/1997/angeo-15-1537-1997.pdf |
| _version_ | 1818951225057476608 |
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| author | A. Grafe P. A. Bespalov V. Y. Trakhtengerts A. G. Demekhov |
| author_facet | A. Grafe P. A. Bespalov V. Y. Trakhtengerts A. G. Demekhov |
| author_sort | A. Grafe |
| collection | DOAJ |
| description | For four geomagnetic storms of middle
intensity the relationship between the low-latitude magnetic field asymmetry
using ASY indices and the intensity of the auroral eastward and westward
electrojet was considered. It was asked whether there exists a connection
between ASY and the eastward electrojet. To answer this question equivalent
current systems were estimated in mid-latitudes. It was found that the
observations obviously show no correlative relationship between the low-latitude
magnetic-field asymmetry and the eastward electrojet, whereas one exists between
ASY and the westward electrojet. To explain the generally accepted common
three-dimensional current system between the partial ring current and the
eastward electrojet, a condensor model of the three-dimensional current system
was developed. It could be shown that the short periodic variations of the
partial ring current are shielded by the condensor and cannot influence the
eastward-electrojet current. |
| first_indexed | 2024-12-20T09:31:06Z |
| format | Article |
| id | doaj.art-56b4327c7bdb40beb501c39db4371704 |
| institution | Directory Open Access Journal |
| issn | 0992-7689 1432-0576 |
| language | English |
| last_indexed | 2024-12-20T09:31:06Z |
| publishDate | 1997-12-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Annales Geophysicae |
| spelling | doaj.art-56b4327c7bdb40beb501c39db43717042022-12-21T19:45:05ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-05761997-12-01151537154710.1007/s00585-997-1537-5Afternoon mid-latitude current system and low-latitude geomagnetic field asymmetry during geomagnetic stormsA. Grafe0P. A. Bespalov1V. Y. Trakhtengerts2A. G. Demekhov3GeoForschungsZentrum, Telegrafenberg, D-14473 Potsdam, GermanyInstitute of Applied Physics, 46 Ulyanov St., 603600 Nizhny Novgorod, RussiaInstitute of Applied Physics, 46 Ulyanov St., 603600 Nizhny Novgorod, RussiaInstitute of Applied Physics, 46 Ulyanov St., 603600 Nizhny Novgorod, RussiaFor four geomagnetic storms of middle intensity the relationship between the low-latitude magnetic field asymmetry using ASY indices and the intensity of the auroral eastward and westward electrojet was considered. It was asked whether there exists a connection between ASY and the eastward electrojet. To answer this question equivalent current systems were estimated in mid-latitudes. It was found that the observations obviously show no correlative relationship between the low-latitude magnetic-field asymmetry and the eastward electrojet, whereas one exists between ASY and the westward electrojet. To explain the generally accepted common three-dimensional current system between the partial ring current and the eastward electrojet, a condensor model of the three-dimensional current system was developed. It could be shown that the short periodic variations of the partial ring current are shielded by the condensor and cannot influence the eastward-electrojet current.https://www.ann-geophys.net/15/1537/1997/angeo-15-1537-1997.pdf |
| spellingShingle | A. Grafe P. A. Bespalov V. Y. Trakhtengerts A. G. Demekhov Afternoon mid-latitude current system and low-latitude geomagnetic field asymmetry during geomagnetic storms Annales Geophysicae |
| title | Afternoon mid-latitude current system and low-latitude geomagnetic field asymmetry during geomagnetic storms |
| title_full | Afternoon mid-latitude current system and low-latitude geomagnetic field asymmetry during geomagnetic storms |
| title_fullStr | Afternoon mid-latitude current system and low-latitude geomagnetic field asymmetry during geomagnetic storms |
| title_full_unstemmed | Afternoon mid-latitude current system and low-latitude geomagnetic field asymmetry during geomagnetic storms |
| title_short | Afternoon mid-latitude current system and low-latitude geomagnetic field asymmetry during geomagnetic storms |
| title_sort | afternoon mid latitude current system and low latitude geomagnetic field asymmetry during geomagnetic storms |
| url | https://www.ann-geophys.net/15/1537/1997/angeo-15-1537-1997.pdf |
| work_keys_str_mv | AT agrafe afternoonmidlatitudecurrentsystemandlowlatitudegeomagneticfieldasymmetryduringgeomagneticstorms AT pabespalov afternoonmidlatitudecurrentsystemandlowlatitudegeomagneticfieldasymmetryduringgeomagneticstorms AT vytrakhtengerts afternoonmidlatitudecurrentsystemandlowlatitudegeomagneticfieldasymmetryduringgeomagneticstorms AT agdemekhov afternoonmidlatitudecurrentsystemandlowlatitudegeomagneticfieldasymmetryduringgeomagneticstorms |