边缘适应波、太阳磁活动和气候变化
Edge Adapted Wavelets, Solar Magnetic Activity, and Climate Change
摘要:
连续小波变换通过重整化和修改分析窗口的形状来考虑信号截断。将瞬时小波能量法和积分小波能量法与以往的算法进行了比较。边缘适应和重整化容许小波变换被用来估计太阳黑子记录的太阳磁活动水平。太阳活动的Oerlemans的温度重建和英格兰中部的温度记录进行了比较。在1610年至1990年之间的几年中可以看到相关性,随着最近观测到的温度升高,随后出现了强烈的偏差。
英文摘要:
The continuous wavelet transform is adapted to account for signal truncation through renormalization and by modifying the shape of the analyzing window. Comparison is made of the instant and integrated wavelet power with previous algorithms. The edge adapted and renormalized admissible wavelet transforms are used to estimate the level of solar magnetic activity from the sunspot record. The solar activity is compared to Oerlemans' temperature reconstruction and to the Central England Temperature record. A correlation is seen for years between 1610 and 1990, followed by a strong deviation as the recently observed temperature increases.
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