大气与环境光学学报 ›› 2011, Vol. 6 ›› Issue (1): 67-.

• 大气光学 • 上一篇    下一篇

合肥地区近地面辐射通量和二氧化碳统计分析与湍流通量的惯性耗散法估算

吴晓庆1, 林晓庆1,2, 朱行听1,2, 李多扬1, 胡顺星1   

  1. (1中国科学院安徽光学精密机械研究所中国科学院大气成分与光学重点实验室,安徽,合肥 230031; 
    2 中国科学院研究生院, 北京 100039)
  • 收稿日期:2010-11-01 出版日期:2011-01-28 发布日期:2011-03-10
  • 通讯作者: 吴晓庆(1963-),男,安徽人,研究员,博士,主要从事大气湍流测量与模式研究。 E-mail:xqwu@aiofm.ac.cn
  • 作者简介:吴晓庆(1963-),男,安徽人,研究员,博士,主要从事大气湍流测量与模式研究。
  • 基金资助:

    科技部基础性工作专项课题(073D2g1391)资助

Statistical Analysis of Radiation Flux and CO2 Surface Layer in Hefei and Estimation of Turbulent Flux Using Dissipation Methods

WU Xiao-qing1, LIN Xiao-qing1,2, ZHU Xing-ting1,2, LI Duo-Yuang1, HU Shun-xing1   

  1. (1 Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institude of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China; 
    2 Graduate School of Chinese Academy of Sciences, Beijing 100039, China)
  • Received:2010-11-01 Published:2011-01-28 Online:2011-03-10

摘要:

近地面层大气湍流通量的测量与估算是研究地气间相互作用规律的关键。统计分析了2007年1月10日至2010年10月14日合肥地区晴天少云的天气条件下辐射通量和CO2含量数据。得到了地表反照率、净辐射通量的季节变化特征和日变化特征。地表能量平衡的检验表明白天时段,大约有40%左右的能量缺口。2007~2010年CO2含量年平均的月变化表明冬季CO2含量最大为735 mg*m-3春季为714.6mg*m-3夏季中5月的CO2含量为692.6 mg*m-3。用惯性耗散法估算了湍流通量并与涡旋相关法测量的湍流通量进行了比较。

关键词: 湍流通量, 统计分析, 惯性耗散估算法

Abstract:

It is important to measure and estimate turbulent flux in surface layer for study air-land interaction. The data of radiation flux and concentration in fine weather from 10 January 2007 to 14 October 2010, in Hefei have been analysed statistically. The characteristics of season variation and diurnal of albedo and net radiation flux have been obtained. The experiment of surface energy budget shows that there are about 40% energy closure gaps in daytime. The data from 2007-2010 show that CO2 concentration in winter, spring, autumn and summer is 735 mg*m-3, 704.4 mg*m-3, 701.8 mg*m-3 and 692.6 mg*m-3 respectively. The turbulent fluxes estimated by dissipation methods and measured by eddy correlation have been compared.

Key words: turbulent flux, statistical analysis, dissipation methods

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