三种常用大气扩散模型比较

COMPARISON OF THREE KINDS OF THE COMMONLY USED ATMOSPHERIC DIFFUSION MODEL

针对各模型在气象资料使用、风向持续累积影响、地形对烟云阻挡影响、零浓度、上风向浓度和日夜浓度比较等问题,采用实例和设定情景,比较分析了3个常用大气扩散模型ADMS、AERMOD和CALPUFF的计算结果,对模型正常情景下浓度计算、地形对烟云的阻挡、气象资料、地理经度等方面进行了比较分析,有助于客观认识各模型的特点、准确性和局限性。

Aiming at the problems of the use of meteorological data,the effect of wind direction on the accumulation of concentration,the influence of terrain on the smoke,the concentration singularity,the upwind concentration and comparison of the concentration of day and night,the paper compared three commonly used atmospheric diffusion models（ADMS,AERMOD and CALPUFF）. Some aspects such as： calculating the concentration under some normal circumstances,terrain effects on plune,ignoring the geographical data and meteorological data were analyzed. These comparative results helped to objectively understand the characteristics,limitations and accuracy of each model.