Solar and interplanetary activity since launch the secchi and impact view
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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. Currently nearing Solar Activity Minimum. Recurrent geomagnetic storms.

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Solar and interplanetary activity since launch the secchi and impact view

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



Recurrent geomagnetic storms SECCHI and IMPACT View


Geomagnetic Activity shows a secondary enhancement in the declining phases of the sunspot cycle


Geomagnetic Activity in 2006 declining phases of the sunspot cycle

as measured by the „Göttingen Solar Wind Monitor“ at L1-1.5 Mkm

(in operation since 1932)


Solar Wind Stream Sources declining phases of the sunspot cycle


Geomagnetic Activity in 2006 declining phases of the sunspot cycle

showing a 4 sector structure and a seasonal pattern

1

2

3

4

Launch


ACE Solar Wind Data in September/October 2006 declining phases of the sunspot cycle

2

3

4

1


Solar Wind Stream Sources declining phases of the sunspot cycle

2

3

4

1


Secchi first light observations euvi a and b
SECCHI First Light Observations declining phases of the sunspot cycleEUVI A and B

December 4 December 12


No major proton events in 2006 until December declining phases of the sunspot cycle


Geomagnetic Activity in 2006 declining phases of the sunspot cycle

One major (Kp ge. 8-) storm in December 2006


December 2006 Event declining phases of the sunspot cycle


December 2006 Event declining phases of the sunspot cycle


December 2006 Event – IMPACT Observations declining phases of the sunspot cycle


ACE Solar Wind data for the December 2006 event declining phases of the sunspot cycle


Geomagnetic Storms / year g.e. 8- declining phases of the sunspot cycle


Geomagnetic Activity in 2007 declining phases of the sunspot cycle


Minimum Expected Mid to End of this Year declining phases of the sunspot cycle

STEREO Launch


Solar activity and major geomagnetic storms
Solar Activity and major geomagnetic storms declining phases of the sunspot cycle

The most intense storms since 1940



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