地球科学进展 ›› 2009, Vol. 24 ›› Issue (4): 411 -419. doi: 10.11867/j.issn.1001-8166.2009.04.0411

研究论文 上一篇    下一篇

城市陆面过程与边界层结构研究
蒋维楣 1,王咏薇 1,2,张宁 1   
  1. 1.南京大学大气科学学院,江苏 南京 210093; 2.南京信息工程大学大气物理学院,江苏 南京 210044
  • 收稿日期:2008-11-21 修回日期:2009-02-07 出版日期:2009-04-10
  • 通讯作者: 蒋维楣 E-mail:wmjiang06@jsmail.com.cn
  • 基金资助:

    国家自然科学基金重点项目“城市边界层三维结构研究”(编号:40333027)资助.

Research on Urban Land-Surface Process and Boundary Layer Structure

Jiang Weimei 1, Wang Yongwei 1,2, Zhang Ning 1   

  1. 1.Atmospheric Sciences School, Nanjing University, Nanjing 210093, China;
    2.Atmospheric Physics School,Nanjing University of Information Science & Technology, Nanjing 210044,China
  • Received:2008-11-21 Revised:2009-02-07 Online:2009-04-10 Published:2009-04-10

     通过城市边界层观测、卫星遥感以及城市边界层数值模拟等途径,获取对城市陆面过程特性的认识,研究建立精细城市边界层模式,引入合理城市区陆面过程参数化方案,并进行城市边界层结构影响研究。研究结果表明:①城市下垫面能量平衡过程迥异于自然地表,引入合理的参数化方案是改善数值模拟性能的关键。②高分辨卫星观测信息是认识城市地表参数状况及其变化的有效途径。 ③人为热排放参数化方案的合理引入是准确描述地表能量平衡过程的又一重要课题。需根据实际情况确定人为热排放的引入方案及量值变化。④应从合理描述城市建筑物下垫面对热力输送及大气动力场的影响出发,研究建立了多层城市冠层模式。⑤应建立更完善的多尺度城市边界层模式系统并引入更新的城市效应参数化方案和数据同化处理,以增强并完善城市边界层数值模拟能力。

       Research progresses of the author and their team on urban land-surface process and boundary layer structure was summarized in this paper. With the data analysis on urban boundary layer and satellite remote sensing, and the numerical study, the characteristics of the urban land-surface have been known, and the mechanism of urban boundary layer research was further carried out by building the fine urban boundary layer model system with the reasonable urban effect parameterization. The research results showed that: (1) The urban surface energy balance is very different from it on nature surface. (2) The satellite data with high resolution is an important approach to investigate the characteristics of urban surface parameter. (3) It is very important to introduce the anthropogenic heat parameterization into the model for accurately describing the urban surface energy balance. (4) The multi-layer urban canopy model has been developed for considering the buildings effect on the dynamical and thermal field of atmospheric motion. (5) The development of multi-scale urban boundary layer model system and the perfection of the urban effect parameterization in it made the simulation on local characteristic of urban boundary layer to be more reasonable. At present, with the speedup of the urbanization on various effects of the urban area expansion and layout on the change of weather/climate are very necessary.

中图分类号: 

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[1] 蒋维楣,苗世光,张宁,刘红年,胡非,李磊,王咏薇,王成刚. 城市气象环境与边界层数值模拟研究[J]. 地球科学进展, 2010, 25(5): 463-473.
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