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Indian Journal of Radio & Space Physics (IJRSP) >
IJRSP Vol.39 [2010] >
IJRSP Vol.39(5) [October 2010] >
| Title: | Characteristic features of ICMEs associated with big storms in geomagnetic activity and large Forbush decreases in cosmic ray intensity |
| Authors: | Gupta, V
Singh, Y P
Badruddin |
| Keywords: | Coronal mass ejection
Geomagnetic storm
Cosmic ray
Forbush decrease
Interplanetary magnetic field |
| Issue Date: | Oct-2010 |
| Publisher: | NISCAIR-CSIR, India |
| PACS No.: | 96.60.ph; 96.50.Bh; 92.60.Qx |
| Abstract: | The solar
sources and features of interplanetary structures associated with big
geomagnetic storm (GS) and/or large Forbush decrease (FD) events have been
investigated. The hourly data of geomagnetic activity, cosmic ray (CR)
intensity, and solar wind plasma/field has been utilized during the passage of
ICMEs and associated structures (e.g. shock/seath, interaction region/high
speed stream). The geo-effectiveness and CR-effectiveness of ICMEs, similarities
and distinctions between them together with variations/fluctuations in
interplanetary plasma/field parameters is utilized in order to identify
distinct feature(s) of ICMEs and physical mechanism(s) playing important role
in the development of GS and FD. |
| Page(s): | 265-269 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-105X (Online); 0367-8393 (Print) |
| Source: | IJRSP Vol.39(5) [October 2010]
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