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首页> 外文会议>Conference on agricultural and forest meteorology >OZONE ATTAINMENT DEMONSTRATION FOR THE BATON ROUGE, LOUISIANA URBAN AREA: USE OF PHOTOCHEMCIAL MODELING TO DEVELOP A REAL-WORLD OZONE ATTAINMENT STRATEGY
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OZONE ATTAINMENT DEMONSTRATION FOR THE BATON ROUGE, LOUISIANA URBAN AREA: USE OF PHOTOCHEMCIAL MODELING TO DEVELOP A REAL-WORLD OZONE ATTAINMENT STRATEGY

机译：Louisiana城市地区巴吞鲁日的臭氧达到演示：使用光化学模型来开发现实世界的臭氧达到策略

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This paper summarizes the methods and results of an application of the variable-grid Urban Airshed Model (UAM-V) for the Baton Rouge ozone nonattainment area that was designed to obtain a quantitative assessment of the potential for compliance with the National Ambient Air Quality Standard (NAAQS) for (1-hour) ozone for a future year of 2005. The modeled attainment demonstration submitted as part of the 1995 SIP indicated that the changes in emissions that were expected to occur between 1990 and 1999 would result in attainment of the NAAQS by the 1999 attainment date. However the observation-based design value for this year was 126 ppb (just above the value of 124 required by the NAAQS). Under EPA's 1998 policy document" Extension of Attainment Dates for Downwind Areas," Baton Rouge was given additional time to demonstrate attainment of the 1 -hour ozone standard through modeling. Additional regional-scale modeling was conducted in support of the 1-hour ozone SIP extension. The additional modeling considered three recent, multi-day ozone episode periods (from September 1997, August 1997, and August 1999), and used state-of-the-science regional-scale meteorological and photochemical modeling tools and techniques to develop an attainment strategy for a future year of 2005. While the regiona'l-scale domain and emissions projections accounted for any reduced pollutant transport from Texas, the emphasis of the modeling analysis was to examine the effects of local emissions changes and to develop an attainment strategy based on local emissions reductions. The modeling databases for two of the simulation periods were adapted from the Gulf Coast Ozone Study (GCOS) modeling analysis while the third simulation period was selected to represent the attainment year. The UAM-V modeling domain is identical to that used for the GCOS modeling analysis and is presented in Figure 1. The modeling analysis included a comprehensive episode-selection analysis (to identify suitable periods for modeling), application of the MM5 prognostic meteorological model, application of the UAM-V photochemical modeling system for three multi-day simulation periods, evaluation of model performance, use of the modeling system to estimate ozone concentrations for a future-year of 2005, analysis of the effects of various emissions reduction scenarios on future-year ozone air quality, and evaluation of specific ozone attainment strategies to demonstrate future-year attainment.
机译：本文总结了该设计以获得潜在的定量评估，符合国家环境空气质量标准的巴吞鲁日的臭氧未达标区域的方法和可变网格城市空气流域模型（UAM-V）的应用程序的结果（NAAQS）为（1小时），臭氧2005年以后每年提交的1995年SIP的一部分，实现模拟演示表明，预计1990年和1999年之间发生的排放量的变化会导致NAAQS的实现由1999年实现的日期。然而今年的基于观察的设计值是126个PPB（略高于124由NAAQS所需的值）。根据EPA的1998年政策文件“素养日期为顺风区的扩展，”巴吞鲁日被给予额外的时间，通过模型来演示1个-Hour臭氧标准的实现。附加区域尺度的建模支持1小时的臭氧SIP分机的进行。额外的造型考虑了三个近期，多日的臭氧事件期间（从1997年9月，1997年8月和1999年8月），以及使用的状态的最科学的区域规模气象和光化学建模工具和技术来开发的达成战略对于2005年未来一年虽然regiona'l规模域和排放预测占来自得克萨斯州的任何减少污染物的传输，建模分析的重点是检查的地方排放量变化的影响，并制定基于策略实现当地减排。两个模拟阶段的建模数据库进行了调整，从墨西哥湾臭氧研究（GCOS），而选择了第三模拟期间代表达成一年的模拟分析。该UAM-V建模域是相同的用于GCOS建模分析，并在图1中呈现的建模分析包括在全面发作选择分析（以确定用于建模合适时段），则MM5预后气象模型的应用，应用UAM-V光化学建模系统的三个多天的模拟时间，模型性能评价，使用建模系统来估计臭氧浓度为2005年的未来一年，对未来各种减排情景的影响分析 - 年臭氧的空气质量，并具体实现臭氧的战略评估，以表明未来一年实现。

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