【摘要】 针对布里吉斯公式不能同时准确计算烟云抬升高度和烟云扩散率的缺陷，通过分析布里吉斯公式的基础假设及其推导过程，提出一个修正初始半径，并用它对布里吉斯公式的初始条件进行修正．修正后的布里吉斯公式可以同时准确计算烟云抬升路径和烟云扩散率，从而提高了布里吉斯公式的通用性．更多还原

【Abstract】 One of the drawbacks of the Briggs equation is that it can not calculate accurately both the plume trajectory and dilution rate simultaneously. After analyzing fundamental assumptions and the derivation process of the equation, a modified initial radius is proposed to modify the initial conditions of the Briggs equation, and it is found that the simultaneous predictions of plume trajectory and dilution growth rate obtained are more in line with experimental data.更多还原