Geosynchronous magnetic field response to the large and fast solar wind dynamic pressure change
Geosynchronous magnetic field response to the large and fast solar wind dynamic pressure change
- New search for: Borodkova, N.L.
- New search for: Liu, J.B.
- New search for: Huang, Z.H.
- New search for: Zastenker, G.N.
- New search for: Borodkova, N.L.
- New search for: Liu, J.B.
- New search for: Huang, Z.H.
- New search for: Zastenker, G.N.
AbstractWe present a comparison of large and sharp solar wind dynamic pressure changes, observed by several spacecraft, with fast disturbances in the magnetospheric magnetic field measured by the GOES-8, 9 and 10 geosynchronous satellites. Almost 400 solar wind pressure changes in the period 1996–2003 were selected for this study. Using the large statistics we confirmed that increases (decreases) in the dynamic pressure always results in increases (decreases) in the magnitude of geosynchronous Bz component. The amplitude of the geosynchronous Bz response strongly depends on the location of observer relative to the noon meridian, from the value of solar wind pressure before the disturbance arriving and firstly – from the amplitude of the pressure change.It is shown that 3D MHD numerical simulation of geosynchronous Bz response performed for different pressure changes inside 9–15LT range is consistent well with the experimental results.
Document information
Geosynchronous magnetic field response to the large and fast solar wind dynamic pressure change
Advances in Space Research ; 41 , 8 ; 1220-1225
2007-05-18
6 pages
Article (Journal)
Electronic Resource
English
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