The practical application results show that the m ean error reduces from 3.15 3% to 2 .95 4% com pared with conventional similar day method.

• 给出了几种方法的实际应用结果 ；并进行了比较 ；统计表明新方法的平均均方根误差较普通相似日方法从 3.；1 5 3%25降低到 2