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This presentation by Volker Bothmer from the Institute for Astrophysics, University of Göttingen covers solar and interplanetary activities since the launch of SECCHI and IMPACT. It highlights geomagnetic activity trends during the declining phase of the sunspot cycle, notably in 2006, while documenting solar wind stream sources and their impacts. The talk discusses the occurrence and characteristics of geomagnetic storms, including a significant event in December 2006. Current predictions indicate a minimum in solar activity expected mid to late 2007, raising awareness of future storm possibilities.
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Solar and Interplanetary Activity since Launch – The SECCHI and IMPACT View Volker Bothmer Institut für Astrophysik der Universität Göttingen (IAG) 5th SECCHI Consortium Meeting, 5-9 March 2007
Geomagnetic Activity shows a secondary enhancement in the declining phases of the sunspot cycle
Geomagnetic Activity in 2006 as measured by the „Göttingen Solar Wind Monitor“ at L1-1.5 Mkm (in operation since 1932)
Geomagnetic Activity in 2006 showing a 4 sector structure and a seasonal pattern 1 2 3 4 Launch
Solar Wind Stream Sources 2 3 4 1
SECCHI First Light Observations EUVI A and B December 4 December 12
Geomagnetic Activity in 2006 One major (Kp ge. 8-) storm in December 2006
Minimum Expected Mid to End of this Year STEREO Launch
Solar Activity and major geomagnetic storms The most intense storms since 1940
Since Individual Major Storms can occur at any given time – Stay tuned