| 近地面光学湍流估算与测量 |
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| 引用本文： | 何武光,吴健,杨春平,韩勇,徐光勇.近地面光学湍流估算与测量[J].电子科技大学学报(社会科学版),2008(6). |
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| 作者姓名： | 何武光 吴健 杨春平 韩勇 徐光勇 |
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| 作者单位： | 电子科技大学光电信息学院; |
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| 基金项目： | 国家自然科学基金(10376007) |
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| 摘 要： | 根据Monin-Obkhov相似理论,建立了近地面大气估算和预测模型,并进行了数值分析。与其他基于相似理论的估算模型对比结果表明,在不稳定条件下利用气象要素和一些经验参数估算近地面平坦地形光学湍流,理论估计和实验结果符合较好,在低风速时折射率结构常数随风速增加而减小。利用Thiermann-Kohnle模型,结合地理位置和太阳辐射规律,预测了某地某时段的光学湍流,并通过实地测量气象数据估测了折射率结构常数和湍流内尺度。
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| 关 键 词： | 气象要素 光学湍流 折射率结构常数 相似理论 近地面 |
Estimation and Measurement of the Optical Turbulence over Land |
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| HE Wu-guang,WU Jian,YANG Chun-ping,HAN Yong, XU Guang-yong.Estimation and Measurement of the Optical Turbulence over Land[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2008(6). |
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| Authors: | HE Wu-guang WU Jian YANG Chun-ping HAN Yong XU Guang-yong |
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| Institution: | HE Wu-guang,WU Jian,YANG Chun-ping,HAN Yong,, XU Guang-yong (School of Optoelectronic Information,University of Electronic Science , Technology of China Chengdu 610054) |
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| Abstract: | A model for estimating and predicting the optical turbulence in the surface layer over land is presented based on Monin-Obukhov similarity theory,and some numerical analyses are carried out in comparison with other models. It is found that under unstable conditions,the optical turbulence over land with flat terrain can be well estimated by using standard meteorological parameters and some experiential data. The estimated result shows that the model is in good agreement with the measurements. When wind speed... |
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| Keywords: | meteorological data optical turbulence refractive-index structure constant similarity theory surface layer over land |
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