Statistical Correlations Between Solar Wind Parameters And Those Of The Magnetotail Plasma Sheet
Abstract
In the present work we studied the effect of the solar wind dynamic pressure on the correlation between solar wind parameters and the corresponding parameters of the magnetotail plasma sheet. Data of different solar wind dynamic pressure are collected and studied to investigate the solar wind effect on the magnetotail. The corrections for the solar wind arrival times from WIND to GEOTAIL satellites are carried out for the studied events. It was found that the correlation coefficient (Rcorr) between solar wind density and magnetotail plasma sheet density is very poor (0.06 and 0.12) in the case of low solar dynamic pressure (1 nPa and 0.85 nPa) . While in the case of high dynamic pressure (4 nPa and 6 nPa) the values of Rcorr increase to 0.7 and 0.83 , respectively. Our study shows also that the magnetic field of the magnetotail plasma sheet enhances if the Bz component of the interplanetary magnetic field is southward. This has been confirmed by the study of many events in the current solar cycle.
- Publication:
-
35th COSPAR Scientific Assembly
- Pub Date:
- 2004
- Bibcode:
- 2004cosp...35.1909M