基于小波分析的降雨量与太阳黑子活动规律关系的研究

Selected each year from 1951 to 2003 July monthly precipitation values in Shenyang area with sunspot values for several months to do research and analysis, taking the cross-correlation with Wavelet wavelet analysis method to process data, discuss the form of the amplitude of oscillation between positive and negative, of the time and frequency do localized analysis, Fourier transform to get rid of difficult issues, a detailed analysis of the internal relations of the two data sets. Found that when doing cross-correlation with the amount of rainfall is closely related to sunspots, up 0.78 correlation and negative correlation: the emergence of the valley near the sunspot peak in rainfall, rainfall was sunspots valley near the peak value. Wavelet analysis results show that: the sunspot peak rainfall occurs 2.3 years, 4.5 years, 6.7 years, there is a correspondence between the period at 9.4 years, and four cycles of precipitation is approximately equal to a sunspot cycle, when the arrival of the peak sunspot, year rainfall for the past 10 years at least. The research results will provide the basis for future favorable rainfall forecast Shenyang region, protection of droughts and floods.