大气短波辐射传输之辐射函数的改进

IMPROVEMENT OF RADIATIVE FUNCTION IN ATMOSPHERIC SHORT WAVE RADIATION TRANSFER

改进了大气短波辐射传输之辐射函数的定义，将大气散射相函数与大气单次散射反照率之积随高度的变化包括在内．对改进型辐射函数（ＩＲＦ）的性质进行了较深入的研究，其中包括：各次散射光强与ＩＲＦ的关系，ＩＲＦ的解析递推公式，高价ＩＲＦ与零阶ＩＲＦ的解析关系，以及ＩＲＦ关于光学厚度的幂级数等．

The definition of radiative function in atmospheric short wave radiation transfer was improved to include the variation of the product of atmospheric scattering phase function and atmospheric single scattering albedo with height.The properties of the improved radiative function (IRF) were studied, which include the relationship between multiple scattering light and IRF, the analytical recurrence formula of IRF, the analytical relationship betweem high order IRF and zero order IRF and the power series of IRF about optical depth.