【摘要】 对4种常用的OLR数值处理方法如距平处理、涡度处理、5日滑动平均值法、小波包分解法与距平涡度综合处理进行对比研究,分析各种方法适用范围和优缺点。结果表明:距平法和涡度法能够反映区域内的总体状况,属于宏观层面;滑动平均法和小波包分解重构法都是针对某一震例,应用范围较小。单一数值处理方法在存在固有缺陷,在试用中应结合区域实际情况,结合各种方法的特性,充分挖掘数据的使用效率。更多还原

【Abstract】 We compared the four common numerical processing method of OLR ( outgoing longw ave radiation) ,such as monthly mean processing,eddy processing,5-days sliding average value method,wavelet packet decomposition w ith the comprehensive processing of monthly mean and eddy,and analyzed the applicable range and advantages and disadvantages of these methods. The results show that monthly mean and eddy methods could reflect the overall situation in the region,it belongs to macro level. The 5-days sliding average value and wavelet packet decomposition methods in small application range are applied to an earthquake case. Because of inherent defect of the single numerical method,we should combine the characteristics of various methods and improve the using efficiency of the data according to the actual situation in the area.更多还原