上海地区风速风向联合概率密度函数的研究

Study on the Joint Probability Density Function between the Wind Velocity and Direction in Shanghai District

根据上海地区历年来详尽的风速风向实测资料，首先利用统计方法计算出本地区离散的风速风向联合概率密度函数值；然后运用曲面拟合方法，得到简洁法实用的风速风向联合概率密度函数由面的表达式．文中同时分析了风速风向在各季节的特点．这些结果可以方便地用于上海地区结构的抗风设计及风洞试验研究．对其它地区的民极年特性分析，文中的方法及结论也可被参考使用．

In this paper, discrete joint probability density function values of thewind velocity and direction in Shanghai district is acquired by statistics. Then ajoint probability density function is derived through camber fitting method. Thefunction is useful for wind- resistant research on civil structures in Shanghai andcan be used as reference in other districts.