Space Climate
Open Access

Fig. 9.


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Three-rotation averages of the solar wind speed in all-solar-wind and in corotating streams and CME-associated flows during 1963–2011 are shown in the bottom three panels. The top panels show the monthly sunspot number and three-rotation averages of the αα geomagnetic index. Arrows indicate local minima in the solar wind speed and geomagnetic activity near solar maximum.

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