具有辐射误差修正功能的自动气象站
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江苏省大气环境与装备技术协同创新中心,南京 210044;南京信息工程大学 电子与信息工程学院,南京 210044;江苏省气象探测与信息处理重点实验室,南京 210044,江苏省大气环境与装备技术协同创新中心,南京 210044;南京信息工程大学 电子与信息工程学院,南京 210044;江苏省气象探测与信息处理重点实验室,南京 210044,中国气象局 气溶胶与云降水重点开放实验室,南京 210044;南京信息工程大学 大气物理学院,南京 210044

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TP212.9

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国家自然科学基金项目(面上项目,重点项目,重大项目),国家公益性行业(气象)科研专项,江苏高校优势学科建设工程


An Automatic Weather Station with Radiation Error Correction Functionality
Author:
Affiliation:

Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment Technology, Nanjing 210044, China; School of Electronic and Information Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China; Jiangsu Key Laboratory of Meteorological Observation and Signal Processing, Nanjing 210044, China,Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing 210044, China; School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing 210044, China

Fund Project:

The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan),National public service sectors (WMO) Research projects,The Priority Academic Program Development of Jiangsu Higher Education Institutions

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    摘要:

    太阳辐射引起的气象站温度测量误差可达0.8K以上,制约了气候变化监测和天气预报精度的提高。设计了一种具有辐射误差修正功能的自动气象站,主要由高反射率温度传感器探头、辐射传感器、风速风向传感器、高精度信号调理电路以及嵌入式处理系统等部分组成。用该气象站和强制通风温度传感器搭建了试验平台。以强制通风温度传感器作为参考,测量不同风速、不同辐射强度下的辐射误差值,利用Levenberg-Marquardt(L-M)算法拟合出用辐射强度和风速计算辐射误差的修正方程,可实现辐射误差的实时修正。实验结果表明,在一定的辐射强度和风速范围内,辐射误差平均值降低到0.021 K,显著提高了气象站气温测量精度。

    Abstract:

    Temperature measurement errors induced by the solar radiation can be greater than 0.8 K, which has become a bottleneck for the improvement of the precision of climate change monitoring and weather forecast. An automatic weather station with radiation errors correction functionality has been designed. It mainly consists of a high reflectivity temperature sensor probe, radiation sensor, wind speed and direction sensor, high precision signal conditioning circuits, embedded processing system, etc. The weather station and a forced ventilation temperature sensor are utilized to build a test platform. The forced ventilation temperature sensor is used as a reference. The radiation error measured in various wind speeds and radiation intensities are utilized to fit out the radiation errors correction equation, in which Levenberg-Marquardt(L-M) algorithm are implemented. The real-time radiation error correction can be achieved via this equation. Experimental results show that, in a certain range of radiation intensities and wind speeds, the radiation error is reduced to 0.021 K. Compared to conventional technologies, the temperature measurement accuracy of the weather station is considerably improved.

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引用本文

罗远鹏,刘清惓,杨杰. 具有辐射误差修正功能的自动气象站[J]. 科学技术与工程, 2016, 16(12): .
Luo Yuan-Peng, Liu Qing-Quan, Yang Jie. An Automatic Weather Station with Radiation Error Correction Functionality[J]. Science Technology and Engineering,2016,16(12).

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  • 收稿日期:2016-01-08
  • 最后修改日期:2016-01-08
  • 录用日期:2016-02-17
  • 在线发布日期: 2016-05-04
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