• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Tenth International Conference on Modelling, Monitoring and Management of Air Pollution Jul, 2002 City of Segovia >Sensitivity tests of MM5 modelling system over a coastal region in Portugal
【24h】

Sensitivity tests of MM5 modelling system over a coastal region in Portugal

机译：葡萄牙沿海地区MM5建模系统的敏感性测试

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

The west coast of Iberian Peninsula, surrounded by the Atlantic Ocean, is characterized by complex topography and some favourable synoptical situations, which imply the occurrence of mesoscale circulations, namely sea/land breezes and anabatic and katabatic flows. Air quality standards are strongly influenced by these patterns leading to the enhancement of photochemical pollutants levels. In order to evaluate air quality levels in Aveiro study region, a field campaign was carried out from 24th June to 2nd July of 2001, which covered the highest ozone (O_3) episode noticed in the region during the year of 2001. To correctly assess air quality over Aveiro region not only measurements are required but also the application of an integrated system of meteorological and photochemical models. Aiming to achieve more satisfactory air quality results both models must be evaluated over the interested region. Accordingly, meteorological model evaluation should be performed firstly. In this scope, the Pennsylvania State University/National Center for Atmospheric Research Mesoscale Meteorology Model (MM5) was applied using its nesting capabilities. Sensitivity analyses were also done in order to better understand how grid size influences model results and its behaviour under distinct meteorological situations. MM5 modelling system was applied to two 48 hours periods during summer 2001, in the North part of Portugal. MM5 application to this region presented a good skill when simulating anticyclone conditions. This study should be considered as pilot, because other periods have to be simulated in order to achieve consistent results for the study region.
机译：伊比利亚半岛的西海岸，被大西洋所包围，具有复杂的地形和一些有利的天气条件，这意味着中尺度环流的发生，即海/陆风和绝热和方差流。空气质量标准受这些模式的强烈影响，导致光化学污染物水平的提高。为了评估阿威罗研究区的空气质量水平，从2001年6月24日至7月2日进行了一次野外运动，该运动涵盖了2001年该地区发现的最高臭氧（O_3）事件。为了正确评估空气阿威罗地区的质量不仅需要测量，而且还需要应用气象和光化学模型的集成系统。为了获得更令人满意的空气质量结果，必须在感兴趣的区域评估两个模型。因此，应首先进行气象模型评估。在此范围内，宾夕法尼亚州立大学/国家大气研究中尺度气象学模型（MM5）使用了其嵌套功能。为了更好地了解网格大小如何影响模型结果及其在不同气象情况下的行为，还进行了敏感性分析。 MM5建模系统于2001年夏季在葡萄牙北部应用于两个48小时的时段。在模拟反气旋条件时，MM5在该区域的应用表现出很好的技能。这项研究应被视为试验性的，因为必须模拟其他时期才能获得研究区域的一致结果。

著录项

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