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Effect of interplanetary magnetic field and disturb storm time on H component |
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| Authors: | Rajni Devi Smita Dubey Shailendra Saini Babita Devi Ajay Dhar S K Vijay A K Gwal |
| Institution: | 1. Space Science Laboratory, Department of Physics, Barkatullah University, Bhopal, 462 026, India 3. Indian Institute of Geomagnetism, New Panvel, Mumbai, India 2. Government Geetanjali College, Bhopal, India |
| Abstract: | A fluxgate digital magnetometer is used to study the variation of magnitude of H component during geomagnetic storm events of April, July and November 2004 at southern subauroral localized region at “MAITRI” (geom. lat. 62°S, long. 52.8°E). We also study the effect of vertical component of interplanetary magnetic field (IMF) on the variation of the magnitude of H component during storm time of April, July and November 2004. Results show that before sudden storm commencement (SSC) time magnitude of H component and IMF show smooth variation but after SSC of first storm of 22 July 2004, the magnitude of the H component shows fluctuations and at 09:00 UT it increases, but during second storm of 24 July 2004, the magnitude of H component indicates large fluctuations and it increases rapidly at 04:00 UT. |
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