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Low-dimensional chaos of high-latitude solar activity

机译：高纬度太阳活动的低维混沌

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The chaos of high-latitude solar activity has been investigated by determining the behavior of the monthly averaged polar facula counts obtained from the National Astronomical Observatory of Japan (NAOJ) on the basis of nonlinear dynamics theories and methods. It is found that the high-latitude solar activity is also governed by a low-dimensional chaotic attractor in both the northern and southern solar hemispheres, which is the same as that of the low-latitude solar activity. However, their maximal Lyapunov exponents are different, showing different strength of chaos. The maximal Lyapunov exponent (MLE) of polar faculae in the southern solar hemisphere is about 0.0211 +/- 0.0003 (month(-1)), which is nearly consistent with the low-latitude Wolf sunspot numbers, while the MLE in the northern one is approximately 0.0944 +/- 0.0066 (month(-1)), which is obviously greater than the above two.
机译：根据非线性动力学理论和方法，通过确定从日本国立天文台（NAOJ）获得的月平均极光斑数的行为，对高纬度太阳活动的混乱进行了研究。发现在北半球和南半球，高纬度太阳活动也受到低维混沌吸引子的控制，这与低纬度太阳活动相同。但是，它们的最大Lyapunov指数不同，表现出不同的混沌强度。南半球南极极小部分的最大Lyapunov指数（MLE）约为0.0211 +/- 0.0003（month（-1）），与低纬度Wolf黑子数几乎一致，而北半球的MLE最高。大约是0.0944 +/- 0.0066（month（-1）），明显大于上述两个。

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