地基微波辐射计和太阳光度计反演大气水汽总量的对比研究

大气与环境光学学报 ›› 2013, Vol. 8 ›› Issue (2): 146-152.

地基微波辐射计和太阳光度计反演大气水汽总量的对比研究

戴聪明1,2，魏合理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 中国科学院大学，北京 100049)

收稿日期:2012-10-08 修回日期:2012-11-16 发布日期:2013-03-07
通讯作者: 戴聪明（1987-），江西崇仁人，博士研究生，目前从事大气红外辐射传输特性研究。 E-mail:hlwei@aiofm.ac.cn
作者简介:戴聪明（1987-），江西崇仁人，博士研究生，目前从事大气红外辐射传输特性研究。
基金资助:
国家自然科学基金（61077081）资助

Comparison of Atmospheric Precipitable Water Vapor Measured by Ground-Based Microwave Radiometer and Sun-Photometer

DAI Cong-ming1,2, WEI He-li1*

(1 Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Anhui Hefei 230031；
2 University Chinese Academy of Sciences, Beijing, 100049)

Received:2012-10-08 Revised:2012-11-16 Online:2013-03-07

摘要/Abstract

摘要：

水汽是地球大气的重要成分，对大气中传输的红外辐射造成严重的衰减，影响光电设备的探测性能。利用改进的Langley法对太阳光度计940nm探测通道进行定标，根据水汽吸收透过率与水汽总量的关系，应用太阳辐射计的观测资料反演出合肥和新疆两地的大气水汽总量，并与同时期地基微波辐射计在以上两地区的探测值相比较。结果表明：地基微波辐射计观测的水汽总量日变化趋势和太阳光度计具有较好的一致性，二者观测的日均水汽总量变化趋势非常吻合，相对偏差小于5.1%。

关键词: 水汽总量, 微波辐射计, 太阳光度计

Abstract:

Water vapor is an important component of terrestrial atmosphere, which attenuates infrared radiance in the atmosphere and affects optical-electron engineering capability. The 940 nm channel of sun-photometer was calibrated by modified Langley method. According to the relationship between atmospheric transmittance and water vapor amount, the precipitable water vapor(PWV) was measured with ground-based microwave radiometer in Hefei, Anhui and Kashi, Xinjiang regions. The results showed that the PWV retrieved by these methods agrees with each other, the relative percent difference in the retrievals is less than 5.1%. The daily PWV retrievaled by microwave radiometer agreed well with the sun-photometer.

Key words: precipitable water vapor, microwave radiometer, sun-photometer

中图分类号:

P412

戴聪明魏合理. 地基微波辐射计和太阳光度计反演大气水汽总量的对比研究[J]. 大气与环境光学学报, 2013, 8(2): 146-152.

DAI Cong-Ming, WEI He-Li. Comparison of Atmospheric Precipitable Water Vapor Measured by Ground-Based Microwave Radiometer and Sun-Photometer[J]. Journal of Atmospheric and Environmental Optics, 2013, 8(2): 146-152.

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