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Remote Sensing for Land & Resources    2018, Vol. 30 Issue (4) : 182-186     DOI: 10.6046/gtzyyg.2018.04.27
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Thermal discharge monitoring of nuclear power plant with aerial remote sensing technology using a UAV platform: Take Hongyanhe Nuclear Power Plant,Liaoning Province,as example
Xiang WANG1, Xinxin WANG1, Xiu SU1(), Qinghui MENG1, Dejun ZOU2, Xiaodong YI3, Lin WANG1, Shiyong WEN1, Jianhua ZHAO1
1. Key Laboratory for Ecological Environment in Coastal Areas (SOA), National Marine Environmental Monitoring Center , Dalian 116023, China
2. Dalian Aerospace Beidou Technology Co., Ltd., Dalian 116023, China
3. Research Institute of Surveying and Spatial Information Technology, School of Civil and Engineering, Dalian University of Technology, Dalian 116023, China
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Abstract  

Existing monitoring approaches are not effective in dealing with routine thermal discharge monitoring requirements of nuclear power plants. This paper describes a monitoring methodology using an aerial remote sensing monitoring system based on an unmanned aerial vehicle (UAV) platform by taking the monitoring of the thermal discharge of the Hongyanhe Nuclear Power Plant, Liaoning Province as an example, and conducts a study of remote sensing extraction of thermal diffusion information of the thermal discharge. In this study, quartic polynomial fitting and real data correction are used to correct the wide-angle distortion and acquire the water body surface temperature information, respectively. Synchronized measured data validation of independent samples indicates that the system can acquire diffusion information of the thermal discharge accurately, and the retrieval error of the surface water temperature is within 0.4 °C. Results analysis shows that this efficient and convenient aerial remote sensing monitoring system based on a UAV platform can effectively make up inadequacies of existing monitoring technical measures and offers high precision. This system is expected to be further adopted and applied for post-assessment of the environmental impact of nuclear power plant thermal discharge and service monitoring.

Keywords unmanned aerial vehicle (UAV) platform      aerial remote sensing      thermal discharge      wide-angle imaging distortion     
:  X57X87  
Corresponding Authors: Xiu SU     E-mail: xsu@nmemc.org.cn
Issue Date: 07 December 2018
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Xiang WANG
Xinxin WANG
Xiu SU
Qinghui MENG
Dejun ZOU
Xiaodong YI
Lin WANG
Shiyong WEN
Jianhua ZHAO
Cite this article:   
Xiang WANG,Xinxin WANG,Xiu SU, et al. Thermal discharge monitoring of nuclear power plant with aerial remote sensing technology using a UAV platform: Take Hongyanhe Nuclear Power Plant,Liaoning Province,as example[J]. Remote Sensing for Land & Resources, 2018, 30(4): 182-186.
URL:  
https://www.gtzyyg.com/EN/10.6046/gtzyyg.2018.04.27     OR     https://www.gtzyyg.com/EN/Y2018/V30/I4/182
Fig.1  Path of aerial flight and synchronous measurements
Fig.2  Image with wide-angle distortion
Fig.3  Concentric correction model
Fig.4  Distortion correction with concentric model
样点编号 拟合结果偏差
一次回归拟合 四次多项式拟合
1 -0.017 0
2 -0.022 -0.001
3 -0.019 0
4 -0.017 0
5 -0.011 0.001
6 -0.008 -0.003
7 -0.012 -0.003
8 -0.008 0.001
9 -0.013 -0.003
Tab.1  Comparison of distortion correction
Fig.5  Temperature calibration for aerial data
Fig.6  Thematic map of thermal diffusion
Fig.7  Validation of UAV retrieved data
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