...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Challenges to Modeling 'Cold Pool' Meteorology Associated with High Pollution Episodes
【24h】

Challenges to Modeling 'Cold Pool' Meteorology Associated with High Pollution Episodes

机译：与高污染事件相关的“冷池”气象学建模面临的挑战

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Although ozone pollution events are commonly associated with summertime conditions, wintertime ozone concentrations in southwest Wyoming are high enough that they frequently exceed the level of the 8-h ozone National Ambient Air Quality Standard (NAAQS). These wintertime ozone episodes typically occur when large amounts of pollutant emissions coincide with periods of prolonged temperature inversions and stagnant winds. These meteorological conditions, called "cold pools", are also associated with elevated PM_(2.5) (particulate matter with aerodynamic diameter <2.5 μm) concentrations that exceed the level of the 24-h PM_(2.5)NAAQS in many other parts of the western United States including Salt Lake City, central California, and the Pacific Northwest (Figure 1).~1 Cold air can be trapped in valleys and basins by the combination of terrain features and a stable vertical stratification of warm air above cold air that limits vertical ventilation. Air pollutant concentrations can build up to unhealthy levels in cold pools over multdday stagnation episodes.1,2
机译：尽管臭氧污染事件通常与夏季情况有关，但怀俄明州西南部的冬季臭氧浓度很高，以至于经常超过8小时臭氧国家环境空气质量标准（NAAQS）的水平。这些冬季臭氧事件通常发生在大量的污染物排放与长时间的温度反转和风停滞相吻合的时候。这些被称为“冷池”的气象条件还与PM_（2.5）（空气动力学直径<2.5μm的颗粒物）浓度升高有关，该浓度超过了该地区许多其他地方的24小时PM_（2.5）NAAQS水平。美国西部，包括盐湖城，加利福尼亚中部和西北太平洋地区（图1）。〜1地形特征和热空气上方的稳定垂直分层相结合，可将冷空气捕获在山谷和盆地中垂直通风。在multdday停滞期间，冷池中的空气污染物浓度可能上升到不健康的水平1,2。

著录项

  • 来源
    《Environmental Science & Technology》 |2011年第17期|p.7116-7119|共4页
  • 作者

    Kirk R. Baker; Heather Simon; James T.Kelly;

  • 作者单位

    Office of Air Quality Planning and Standards, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, United States;

    Office of Air Quality Planning and Standards, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, United States;

    Office of Air Quality Planning and Standards, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号