Journal of Geodesy and Geoinformation Science ›› 2021, Vol. 4 ›› Issue (1): 38-48.doi: 10.11947/j.JGGS.2021.0105

• Special Issue • Previous Articles     Next Articles

Observation of Offshore Wind Farm Wakes by Spaceborne Synthetic Aperture Radar

Xiaoming LI1,2(),Susanne LEHNER1   

  1. 1. Key Laboratory of Digital Earth Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China
    2. Hainan Key Laboratory of Earth Observation, Sanya 572029, China
  • Received:2020-10-10 Accepted:2020-12-25 Online:2021-03-20 Published:2021-04-06
  • About author:Xiaoming LI (1979-), male, full research professor, research focusing on SAR oceanography. E-mail: lixm@radi.ac.cn
  • Supported by:
    Natural Science Foundation of Hainan Province(420RC675);National Natural Science Foundation of China(41471309)

Abstract:

In this paper, studies on offshore wind farm wakes observed by spaceborne synthetic aperture radar (SAR) are reviewed mainly based on our previous research. Particularly, we focus on investigating wind wakes and tidal current wakes observed by spaceborne SAR of TerraSAR-X, Gaofen-3 and Radarsat-2 in high spatial resolution, in two offshores wind farms, i.e., the Alpha Ventus in the North Sea and the one near Donghai bridge in the East China Sea. Representing examples of wind wakes and tidal current wakes observed by SAR in the two farms are presented and compared. A preliminary statistical analysis on morphology of wind feature downstream Alpha Ventus is presented as well. Besides these studies on wind wakes generated by a single offshore wind farm, we show an example of wakes downstream multiple wind farms in the North Sea to demonstrate “cluster” effect of multiple offshore wind farms on sea wind.

Key words: offshore wind farm wakes; synthetic aperture radar