近60年昆明降水量特征分析

Characteristics Analysis on Kunming Rainfall Nearly 60 Years

针对1951-2010年共60年昆明月降水量进行描述性分析、相关分析、回归分析和函数型箱图分析,得出:(1)昆明地区11月至次年4月共6个月中至少有4个月几乎无雨(月降水量<10mm)的概率高达0.2,即平均5年出现1次;(2)年降水量可以认为服从正态分布,1999、1986、2009年的降水量属于不正常年,1999和1986年全年降水量明显偏多,2009年则偏少,其它年份降水量属于正常范围.

This paper investigates monthly rainfall in Kunming from 1951 to 2010, total 60 years, by descriptive analysis, correlation analysis, regression analysis, Functional Boxplot analy- sis. it is concluded that the probability at least 4 months almost no raining （monthly rainfall 〈 10 mm） in Kunming area from November to April last year total 6 months is up to 0.2, that is about one time might appear in each five years; The annual precipitation data are showed yield to normal distribution, year precipitation in 1999, 1986 precipitation is too much in 1999 and 1986 and too belongs to the normal range. and 2009 belongs to irregular, where annual little in 2009, and other years precipitation