陆地和近海面大气光学湍流估算与测量

徐春燕; 詹国伟; 青春; 蔡俊; 吴晓庆

doi:10.11884/HPLPB201830.170296

陆地和近海面大气光学湍流估算与测量

doi: 10.11884/HPLPB201830.170296

徐春燕^{1, 2,},
詹国伟³,
青春^{1, 2},
蔡俊^{1, 2},
吴晓庆^1, ,

1.
中国科学院安徽光学精密机械研究所, 大气成分与光学重点实验室, 合肥 230031
2.
中国科学技术大学研究生院科学岛分院, 合肥 230026
3.
广东省茂名市气象局, 广东茂名 525000

基金项目:

国家自然科学基金项目 41576185

详细信息

作者简介:
徐春燕(1993—)，女，硕士研究生，从事大气光学湍流估算和测量的研究; xuchunya@mail.ustc.edu.cn

通讯作者:
吴晓庆(1963—)，男，研究员，博士生导师，主要从事大气边界层、大气湍流测量与模式、天文选址等研究; xqwu@aiofm.ac.cn

中图分类号: P183.4
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- 被引次数: 0
出版历程
- 收稿日期: 2017-07-17
- 修回日期: 2017-09-11
- 刊出日期: 2018-02-15

Estimation and measurement of optical turbulence over land and offshore

Xu Chunyan^{1, 2
,},
Zhan Guowei³,
Qing Chun^{1, 2},
Cai Jun^{1, 2},
Wu Xiaoqing^{1
, ,}

1.
Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
2.
Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China
3.
Maoming Meteorological Bureau of Guangdong Province, Maoming 525000, China

摘要

摘要: 基于Monin-Obukhov相似性理论，采用MARIAH算法，利用成都和茂名两个地区、两个高度层上的温度、湿度、风速等常规气象参数估算折射率结构常数，并对估算值与温度脉动仪测量值进行比较分析。结果显示：利用常规气象参数估算得到的成都与茂名的折射率结构常数在变化趋势及量级上基本符合温度脉动仪测量值。成都和茂名的折射率结构常数估算值与测量值的相关系数分别为0.86与0.92，平均绝对值偏差分别为0.410与0.414。因此，采用MARIAH算法估算陆地和近海面大气光学折射率结构常数是可行的；茂名中午时刻的折射率结构常数峰值比成都大一个量级。
- 大气光学 /
- 折射率结构常数 /
- 近地层 /
- 模式估算
Abstract: The refractive index structure constant is estimated and compared with measured values from micro-thermometer by using the meteorological parameters of Chengdu and Maoming, such as temperature, humidity and wind speed on two altitudes. The estimated model adopts MARIAH algorithm, which is based on the Monin-Obukhov similarity theory. The result shows that it is feasible to calculate the structure parameter by MARIAH algorithm. The trend and order of magnitude of the estimated structure constant fit well to that of the measured data. The correlation coefficients between estimated and measured values of two places are 0.86 and 0.92 while the mean absolute error values are 0.410 and 0.414 respectively. Besides, the estimated structure constant of Maoming is one order of magnitude larger than that of Chengdu.
- atmospheric optics /
- refractive index structure constant /
- surface layer /
- estimating model

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图 1 近地面测量系统

Figure 1. Schematic diagram of surface layer measurement system

下载: 全尺寸图片幻灯片

图 2 成都C_n²的温度脉动仪测量值与模式估算值的比较

Figure 2. Time series comparison of C_n² estimated by model and measured by micro-thermometer in Chengdu from May 16 to May 18, 2014

下载: 全尺寸图片幻灯片

图 3 茂名C_n²的温度脉动仪测量值与模式估算值的比较

Figure 3. Time series comparison of C_n² estimated by model and measured by micro-thermometer in Maoming from October 20 to October 22, 2012

下载: 全尺寸图片幻灯片

图 4 成都与茂名C_n²的温度脉动仪测量值与估算值的统计分析

Figure 4. Statistical analysis of model and measurement of C_n² in Chengdu and Maoming

下载: 全尺寸图片幻灯片

表 1 近地面大气参数测量系统传感器技术参数

Table 1. Technical parameters of sensors for near-surface atmospheric parameters measurement

name	model	accuracy
temperature/RH probe	HMP155	temperature: < 0.1 ℃；RH: ±1% RH(0~90%RH), ±1.7%RH(90%~100%RH)
wind monitor	05106	wind speed: ±0.3 m/s, wind direction: ±3°
micro-thermometer	MT1	system noise level corresponding to D_T of 2×10^-3 ℃

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参考文献(10)

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