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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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https://doi.org/10.5194/amt-2017-23
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/amt-2017-23
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

  31 Mar 2017

31 Mar 2017

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This preprint was under review for the journal AMT but the revision was not accepted.

Characterization of a wind turbine wake evolving over an intertidal zone performed with dual-lidar observations

Changzhong Feng1, Bingyi Liu1, Songhua Wu1,2, Jintao Liu1, Rongzhong Li3, and Xitao Wang3 Changzhong Feng et al.
  • 1Ocean Remote Sensing Institute, Ocean University of China, Qingdao 266100, China
  • 2Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology
  • 3Seaglet Environmental Technology, Qingdao, China

Abstract. As modern wind power industry quickly develops, it is of high priority to optimize layouts and operations of wind turbines to reduce the influences of wakes induced by upstream wind turbines. The wake behaves complicatedly with land ocean-atmosphere interactions. This complex wake could be observed by two or more synchronously operated Doppler lidars. Accordingly, we characterized a wind turbine wake evolving over an intertidal zone performed with dual-lidar observations. Dynamic process of wakes merging that occurred from approximately 1 D (rotor diameter) downstream was captured and analysed. The phenomenon that wake length increased with rising tide was analysed in details. It suggested that the increase of wake length varied with underlying surface roughness transition from mud to sea water as well as the rising sea level. Finally, wake meandering cases were analyzed in detail. Our research shows that the dual-lidar observation technology is a promising remote sensing tool for characterization of complicated wind turbine wakes.

Changzhong Feng et al.

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Changzhong Feng et al.

Changzhong Feng et al.

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Short summary
To characterize wind turbine wake over the intertidal zone, we performed a dual-lidar experiment with tilted scanning stragety. Advantage of this technology lies in its adaptation in various wind directions as well as high accuracy and high spatial and temporal resolution. Wind turbine wakes merging, the phenomenon of wake length increasing with rising tide and wake meandering were observed and analyzed in details. It is a promising remote sensing tool to charecterize wind turbine wakes.
To characterize wind turbine wake over the intertidal zone, we performed a dual-lidar experiment...
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