Interplanetary-magnetosphere coupling during intense geomagnetic storms at solar maximum
During the interval of August 16. 1978 - December 28. 1979,90% of the intense geomagnetic storms CDst < -l00nD were preceded by the arrival of interplanetary fast forward shocks at 1AU. as identified with magnetic field and plasma data collected by the ISEE-3 spacecraft. For these events we d...
| Autores: | , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1992 |
| País: | México |
| Recursos: | UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO |
| Repositorio: | Geofísica Internacional |
| Idioma: | inglés |
| OAI Identifier: | oai:revistagi.geofisica.unam.mx:article/1208 |
| Acesso em linha: | http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1208 |
| Access Level: | acceso abierto |
| Palavra-chave: | Tormentas geomagnéticas Reconexión magnética Geomagnetic storms Magnetic reconnection |
| Resumo: | During the interval of August 16. 1978 - December 28. 1979,90% of the intense geomagnetic storms CDst < -l00nD were preceded by the arrival of interplanetary fast forward shocks at 1AU. as identified with magnetic field and plasma data collected by the ISEE-3 spacecraft. For these events we discuss the interplanetary structures that are associated with the -large-amplitude and long-duration negative Bz fields that are thought to be the main cause of the intense storms. We also present a summary of the interplanetary-magnetosphere coupling functions, based on the magnetopause reconnection process. We end by an overview of the long-term evolution of intense geomagnetic storms such as those associated to the seasonal and solar cycle distributions. |
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