Geomagnetic Field Variation during Winter Storm at Localized Southern and Northern High Latitude

Journal of astrophysics and astronomy

Rajni Devi²  Smita Dubey²  S. K. Vijay¹  Ajay Dhar³  Babita Devi²  Rashmi Wahi²  Shailendra Saini²  A. K. Gwal² 

[1] Government Geetanjali College, Bhopal, India.$$;Space Science Laboratory, Department of Physics, Barkatullah University, Bhopal 462 026, India.$$;Indian Institute of Geomagnetism, New Panvel, Mumbai, India.$$

关键词: Dst;    vertical component of interplanetary magnetic field and geomagnetic field components.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

This paper presents the effect of geomagnetic storm on geomagnetic field components at Southern (Maitri) and Northern (Kiruna) Hemispheres. The Indian Antarctic Station Maitri is located at geom. long. 66.03° S; 53.21° E whereas Kiruna is located at geom. long. 67.52° N; 23.38° E. We have studied all the geomagnetic storms that occurred during winter season of the year 2004–2005. We observed that at Southern Hemisphere the variation is large as compared to the Northern Hemisphere. Geomagnetic field components vary when the interplanetary magnetic field is oriented in southward direction. Geomagnetic field components vary in the main phase of the ring current. Due to southward orientation of vertical component of IMF reconnection takes place all across the dayside that transports plasma and magnetic flux which create the geomagnetic field variation.

【 授权许可】

Unknown