| 合肥郊区大气边界层垂直风速的声雷达探测 |
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| 引用本文： | 徐小峰,翁宁泉,肖黎明,孙刚.合肥郊区大气边界层垂直风速的声雷达探测[J].大气与环境光学学报,2006(5). |
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| 作者姓名： | 徐小峰 翁宁泉 肖黎明 孙刚 |
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| 作者单位： | [1]中国科学院安徽光学精密机械研究所 [2]中国科学院安徽光学精密机械研究所 大气光学中心 [3]安徽 合肥 [4]大气光学中心 |
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| 摘 要： | 垂直速度的测量与分析是研究大气边界层对流和湍流的重要手段,对合肥地区用声雷达探测的垂直速度数据的分析表明,白天对流旺盛,垂直速度较大,湍流较强,夜间对流相对较弱,垂直速度较小,湍流也较弱。在白天对流比较强时,瞬时垂直速度可超过0．6 m／s,从对数据的统计分析来看,有90％的垂直风速在0．3 m／s以下。同时分析了垂直风速标准差,发现其有明显的日变化特征,并且与大气折射率结构常数有很好的相关性。
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| 关 键 词： | 大气边界层 垂直风速 声雷达 |
Detecting the Vertical Velocity in the Atmosphere Boundary Layer in Hefei Using Sodar |
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| XU Xiao-feng,WENG Ning-quan,XIAO Li-ming,SUN Gang.Detecting the Vertical Velocity in the Atmosphere Boundary Layer in Hefei Using Sodar[J].Journal of Atmospheric and Environmental Optics,2006(5). |
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| Authors: | XU Xiao-feng WENG Ning-quan XIAO Li-ming SUN Gang |
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| Abstract: | In order to probe the characters of the atmosphere boundary layer (ABL), a sodar was used to probe ABL in Hefei in November 1999. The vertical velocity data of sodar were analyzed. Result shows that the convection is strong in daytime with instantaneous vertical velocity 0.6 m/s and weak at night. Also it is found that the standard deviation of vertical velocity is relative to the refractive -index structure constant well. |
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| Keywords: | atmosphere boundary layer vertical velocity sodar |
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