兰州市冬季SO2大气环境容量研究

通过数值模拟方法，研究了兰州市冬季SO2的大气环境容量，为大气污染的总量控制方法提供了前提和依据。本文利用RAMs三维非流体静力大气动力模式模拟的气象场驱动中尺度大气扩散模式(HYPACT)，模拟出SO2的浓度分布及每个污染单元对于地面浓度的分担率。根据SO2的国家环境空气质量标准(下称质量标准)，用线性规划的原理和方法计算了兰州市冬季典型日条件下SO2的大气环境容量。

Study on SO2 Atmospheric Environment Capacity in Lanzhou Winter

Through numerical simulation method, the atmospheric capacities of sulfur dioxide in Lanzhou winter have been studied to offer the premise and basis for the total quantity control method, which is usualy one of the atmospheric pollution control methods. First, the concentration of sulfur dioxide in Lanzhou city are simulated with the Hybrid Particle and Concentration Transport Package Model(HYPACT), which is forced the meteorological conditions produced by a three-dimension model, the Regional Atmospheric Modeling System Version 4.3(RAMS4.3). Then, concentration-shared ratio of each pollution unit in Lanzhou is computed. Finally, using the linear programming method, the atmospheric capacities of SO_(2) of representative days in Lanzhou winter are calculated according to the atmospheric state quality standard.