Overview of the UAV—Based Eddy Covariance Fluxes Measurements Technique

doi:10.11867/j.issn.1001-8166.2019.08.0842

Advances in Earth Science ›› 2019, Vol. 34 ›› Issue (8): 842-854. doi: 10.11867/j.issn.1001-8166.2019.08.0842

Overview of the UAV—Based Eddy Covariance Fluxes Measurements Technique

Yibo Sun ^1, ²( ),De Su ^1, ²( ),Zhanjun Quan ¹,Haolü Shang ³,Bing Geng ⁴,Xingwen Lin ⁵,Pingping Jing ⁶,Yang Bao ^1, ²,Yanhua Zhao ^1, ²,Wei Yang ^1, ²

1. Institute of Environmental Ecology, State Key Laboratory of Environmental Criteria and Risk Assessment, State Environment Protection Key Laboratory of Regional Eco-Process and Function Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100021, China
2. Integrated Ecological Observation and Research Station of Jinggangshan, Jinggangshan Jiangxi 343699, China
3. Key Laboratory of Digital Earth Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China
4. Institute for Urban and Environment Studies, Chinese Academy of Social Sciences, Beijing 100028, China
5. College of Geography and Environment Science, Zhejiang Normal University, Jinhua Zhejiang 321004, China
6. National Ocean Technology Center, Tianjin 300112, China

Received:2019-04-21 Revised:2019-06-26 Online:2019-08-10 Published:2019-10-11
Contact: De Su E-mail:sunyb68@163.com;sude@craes.org.cn;sunyb68@163.com
About author:Sun Yibo (1988-), male, Ordos City, Inner Mongolia Autonomous Region, Postdoctor. Research areas include observation and modeling of land-surface process. E-mail: sunyb68@163.com |Sun Yibo (1988-), male, Ordos City, Inner Mongolia Autonomous Region, Postdoctor. Research areas include observation and modeling of land-surface process. E-mail: sunyb68@163.com
Supported by:
the National Key Research and Development Program of China "Ecological security assessment;risk prediction and early warning technology for the Yangtze Delta Urban Agglomeration"(2016YFC0502702);The Ecology and Environment Protection and Supervision Project of the Ministry of Ecology and Environment;China "The biodiversity survey and assessment"(2019HJ2096001006)

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Yibo Sun,De Su,Zhanjun Quan,Haolü Shang,Bing Geng,Xingwen Lin,Pingping Jing,Yang Bao,Yanhua Zhao,Wei Yang. Overview of the UAV—Based Eddy Covariance Fluxes Measurements Technique[J]. Advances in Earth Science, 2019, 34(8): 842-854.

Airborne Eddy Covariance (EC) method is one of the most effective ways to measure the turbulent fluxes over regional scale directly. The turbulent fluxes from airborne EC method have the same spatial scale with the pixel scale of remote sensing image and the grid scale of land-surface models, which is very important for the simulation of regional or global land-surface fluxes. UAV-based eddy covariance method could achieve the observation of turbulent fluxes in a multi-period and multi-sorties way, and the observation result is reliable and the application is inexpensive. It is an important development direction for airborne flux observation technique. After the introduction of the main technical characteristics of the airborne EC method, this paper reviewed the worldwide progress in UAV-based fluxes measurements system from these aspects of the specifications of the UAVs, the integrated instruments, and the analysis of the application cases. Then, the main sources of uncertainty affecting the UAV-based fluxes measurements were discussed. At last, the shortcomings of the current UAV-based flux observation system were summarized. A brief outlook about UAV-based fluxes measurements technique was also given.

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