Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 41405011 |
| 多种下垫面湍流扩散特征的对比研究 | |
| 全利红 | |
| 主持机构 | 中国气象科学研究院 |
| 开始日期 | 2015 |
| 结束日期 | 2017 |
| 资助经费 | 250000(CNY) |
| 项目类别 | 青年科学基金项目 |
| 资助机构 | CN-NSFC（国家自然科学基金） |
| 语种 | 中文 |
| 国家 | 中国 |
| 英文简介 | Atmospheric pollution becomes a significant problem in recent years. For pollution control, we should firstly make sure of the dispersion ability of atmosphere. In surface layer, pollutants are dispersed and transported primarily though turbulence. Turbulence in surface layer is greatly affected by underlying surfaces, which makes the difference of turbulent dispersion between on various underlying surfaces. However, the theories and models of turbulent dispersion are mostly established according to the experiments on homogeneous underlying surface, which can not be often used on complex terrains. Turbulent dispersion on complex terrains has been studied by experiments and simulations, but it is not understood why turbulent dispersion is different between various underlying surfaces. Therefore, it is necessary to compare the characteristics of turbulent dispersion between on various underlying surfaces and find out of the rule of turbulent dispersion on complex terrains, which will be carried out in this project with the data collected from experiments on atmospheric dispersion on various terrains, including city, costal, desert, plain, hill. We will apply footprint method into calculation of dispersion parameters, and deeply study the dispersion parameters in order to characterize turbulent dispersion on various underlying surfaces. The difference of dispersion parameters on various underlying surfaces and the reason of the difference are our focus. The result of this project can be a reference for the improvement of models and the modification of relevant guidelines of atmospheric environment impact assessment. |
| 来源机构 | 中国气象科学研究院 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/346739 |
| 推荐引用方式 GB/T 7714 | 全利红.多种下垫面湍流扩散特征的对比研究.2015. |
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