A comparison of the RCM and ISC3 dispersion models against the Alaska data set  

作　　者：陈刚才 杨多兴 王中琼 

机构地区：[1]Chongqing Academy Of Environmental Science, Chongqing 400020, China [2]Appraisal Center for Environment & Engineering, State Environmental Protection Administration, No.8 Dayangfang, Anwai, Beijing 100012, China [3]State Intellectual Property Office, No.19 Xitucheng, Anwai, Beijing 100088, China

出　　处：《Chinese Journal Of Geochemistry》2006年第3期255-257,共3页中国地球化学学报

基　　金：ThisresearchwassupportedbyCSTC(No.2005AC7097).

摘　　要：The USEPA (U.S. Environmental Protection Agency) approved ISC3 for short-range dispersion modeling. The regulatory model of China is a traditional Gaussian plume model similar to ISC. This paper demonstrates the advantages of ISC3 over the regulatory model of China by comparing their predicted ground level concentrations (GLC) along downwind distance to the Alaska tracer field data. The field experiment features buoyant release of effluent at elevated height over a flat terrain and local flows influenced by building downwash. ISC3 shows much better space-time correlation and probability distribution than the China regulatory model, which frequently underestimates the GLC for effluent released with significant plume rise under stable atmospheric conditions. The performance of ISC3 is greatly enhanced by incorporating the state-of-the-art knowledge of boundary layer meteorology. In particular, ISC3 employs the PRIME model for building downwash.The USEPA （U. S. Environmental Protection Agency） approved ISC3 for short-range dispersion modeling. The regulatory model of China is a traditional Gaussian plume model similar to ISC. This paper demonstrates the advantages of ISC3 over the regulatory model of China by comparing their predicted ground level concentrations （GLC） along downwind distance to the Alaska tracer field data. The field experiment features buoyant release of effluent at elevated height over a flat terrain and local flows influenced by building downwash. ISC3 shows much better space-time correlation and probability distribution than the China regulatory model, which frequently underestimates the GLC for effluent released with significant plume rise under stable atmospheric conditions. The performance of ISC3 is greatly enhanced by incorporating the state-of-the-art knowledge of boundary layer meteorology. In particular, ISC3 employs the PRIME model for building downwash.

关 键 词：阿拉斯加州 色散 ISC3 RCM 空气 

分 类 号：X820[环境科学与工程—环境工程]