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The AERMOD atmospheric dispersion modeling system is an integrated system that includes three modules:〔(AERMOD:Description of Model Formulation )〕〔Prater, E.T. and Midgley, C., ''A new air dispersion modeling system is helping create more accurate industrial source models'', Environmental Protection, Vol. 17, No. 3, Stevens Publishing〕〔(Brode, R.W., ''AERMOD Technical Forum'', EPA R/S/L Modelers Workshop ), San Diego, California, April 16, 2006〕 *A steady-state dispersion model designed for short-range (up to 50 kilometers) dispersion of air pollutant emissions from stationary industrial sources. * A meteorological data preprocessor (AERMET) that accepts surface meteorological data, upper air soundings, and optionally, data from on-site instrument towers. It then calculates atmospheric parameters needed by the dispersion model, such as atmospheric turbulence characteristics, mixing heights, friction velocity, Monin-Obukov length and surface heat flux. * A terrain preprocessor (AERMAP) whose main purpose is to provide a physical relationship between terrain features and the behavior of air pollution plumes. It generates location and height data for each receptor location. It also provides information that allows the dispersion model to simulate the effects of air flowing over hills or splitting to flow around hills. AERMOD also includes PRIME (Plume Rise Model Enhancements) 〔(Development and Evaluation of the PRIME Plume Rise and Building Downwash Model )〕 which is an algorithm for modeling the effects of downwash created by the pollution plume flowing over nearby buildings. ==History of the development of AERMOD== AERMOD was developed by the AERMIC (American Meteorological Society (AMS)/United States Environmental Protection Agency (EPA) Regulatory Model Improvement Committee), a collaborative working group of scientists from the AMS and the EPA.〔 The AERMIC was initially formed in 1991. The AERMIC developed AERMOD in seven steps: *Initial model formulation *Developmental evaluation *Internal peer review and beta testing *Revised model formulation *Performance evaluation and sensitivity testing *External peer review *Submission to the EPA for consideration as a regulatory model. On April 21 of 2000, the EPA proposed that AERMOD be adopted as the EPA's preferred regulatory model for both simple and complex terrain.〔(Federal Register: April 21, 2000 (Volume 65, Number 78) ) Proposed Rule〕 On November 9 of 2005, AERMOD was adopted by the EPA and promulgated as their preferred regulatory model, effective as of December 9 of 2005.〔(Federal Register: November 9, 2006 (Volume 70, Number 216) ) Final Rule〕 The entire developmental and adoption process took 14 years (from 1991 to 2005). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「AERMOD」の詳細全文を読む スポンサード リンク
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