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Relationship between interplanetary (IP) parameters and geomagnetic indices during IP shock events of 2005

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Title Relationship between interplanetary (IP) parameters and geomagnetic indices during IP shock events of 2005
 
Creator RATHOD, J
RAJARAM, G
ALYANA, R
REDDY, AC
MISRA, DS
PATIL, CG
PRASAD, MYS
ANANTH, AG
 
Subject magnetic clouds
solar-wind
field
ip parameters
ip shocks
solar-terrestrial relationship
 
Description In the present study, we investigate the possible relationship of IP parameters of solar wind and interplanetary magnetic field with ground-based geomagnetic indices. To carry out the study, we take all the IP shock events listed by Proton Monitor onboard Solar and Heliospheric Observatory (SOHO) during 2005, and plot the time variations of all the IP parameters and geomagnetic parameters (+/-5 days), centered at the shock arrival time. Next, we obtain scatter plots of absolute values of solar wind parameters such as Vsw, Nsw and Interplanetary Magnetic Field (IMF) components Bx, By, Bz and total B with the values of geomagnetic parameters such as Dst, Kp indices, dayside Magnetopause (MP) distance and Cosmic-Ray Neutron Monitor count (CRNM). The scatter plots show that before the IP shock, the pattern is random with no clear relationship. Following the shock, a clear pattern emerges with a type of relationship being seen - clear for SHARP shocks and less clear for DIFFUSE shocks. A total of 10 shock events for 2005 have been studied. Typical examples of this behaviour are the shock events of January 21, 2005 and May 15, 2005. Our study suggests a definite correlation between changes in the solar wind and interplanetary magnetic field parameters and ground-based geomagnetic response. We are trying to obtain quantitative relationships between these for shock events of 2005.
 
Publisher SPRINGER
 
Date 2011-10-22T04:16:32Z
2011-12-15T09:10:42Z
2011-10-22T04:16:32Z
2011-12-15T09:10:42Z
2008
 
Type Article; Proceedings Paper
 
Identifier JOURNAL OF ASTROPHYSICS AND ASTRONOMY,29,293-302
0250-6335
http://dx.doi.org/10.1007/s12036-008-0039-5
http://dspace.library.iitb.ac.in/xmlui/handle/10054/14817
http://hdl.handle.net/100/1606
 
Source International Conference on Challenges for Solar Cycle 24,Ahmedabad, INDIA,JAN 22-25, 2007
 
Language English