IMF effect on the polar cap contraction and expansion during a period of substorms

• Published in: Annales Geophysicae
• Main Authors: A. T. Aikio, T. Pitkänen, I. Honkonen, M. Palmroth, O. Amm
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2013
• Subjects: Science; Q; Physics; QC1-999; Geophysics. Cosmic physics; QC801-809; Omni; EISCAT
• Online Access: https://doi.org/10.5194/angeo-31-1021-2013; https://doaj.org/article/6d4764bf3c8c4154b688ebe01944295c

The polar cap boundary (PCB) location and motion in the nightside ionosphere has been studied by using measurements from the EISCAT radars and the MIRACLE magnetometers during a period of four substorms on 18 February 2004. The OMNI database has been used for observations of the solar wind and the G...