Abstract: Aiming at terrorists attack chemical plants or chemical establishments, the model, based on the 3-D atmospheric diffusion on complex terrain, is completed. The model can be used to simulate the wind fields, concentration fields, dose fields, and make certain the danger areas and make the harm evaluation. The model can provide necessary scientific data for working-out counterplan, emergence response and emergence rescue. The model can be applied to the analogous chemical affairs in character for emergence response and emergence rescue as well as to the risk evaluation in disposed ACW (Abandoned Chemical Weapons) in performing CWC (Chemical Weapons Convention).

Key words: terrorism, chemical weapons attack, numerical simulation

摘要： 针对恐怖分子袭击化工厂及储存库等设施，建立了复杂地形上三维大气扩散模式，模拟流场、浓度场和各种剂量场，对事故目标进行危害评估，确定危害区域和危害程度，为制定反化学恐怖预案及应急救援提供技术指标。并可用于危害性质相同的化学突发事件应急救援系统和履行《禁止化学武器公约》对遗留化学武器处理的风险评估。

关键词: 恐怖主义, 化学袭击, 数值模拟