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使用最小二乘曲线拟合法、相关分析和互相关分析法,对中山大学珠海校区滨海水循环综合试验基地监测的2006年8月~2009年6月溪流水温、水位及气温数据进行分析,发现小规模溪流水温-气温可以用线性模型和logistic模型较好拟合,水温波动相对气温存在2.0h位相延迟,水温-气温相关程度与水位值呈负相关关系;使用Morlet小波滤波、功率谱分析及小波方差计算等方法对水温与气温的日周期、半日周期及季节性周期成分进行研究,探讨其周期大小以及周期成分能量等问题。
Using least squares curve fitting method, correlation analysis and cross correlation analysis method, we analyzed the data of water temperature, water level and air temperature in August 2006 ~ June 2009 monitored by the comprehensive test base of coastal sea water cycle in Zhuhai Campus of Sun Yat-sen University and found that small- The temperature and temperature of the stream can be fitted well by the linear model and the logistic model. There is a 2.0h phase delay in the temperature relative to the water temperature. The correlation between the water temperature and the temperature is negatively correlated with the water level. Morlet wavelet filter, power spectrum analysis and wavelet variance Calculation and other methods of water temperature and temperature of the day cycle, half-cycle and seasonal cycle components to study the cycle size and cycle components such as energy issues.