激光测风雷达在风场观测领域的应用及展望

Application and prospect of Dopplar lidar in the wind field observation

  • 摘要: 多普勒激光测风雷达因具有高测量精度、高时空分辨率等优势,在晴空天气的风场观测中发挥着重要作用。本文综述了激光测风雷达技术的应用价值以及国内外测风雷达技术与设备研究现状。针对激光测风雷达所存在的问题进行分析,提出其需进一步研究的方向。对激光测风雷达在风场的应用、雷达中尺度数据与CFD (Computational Fluid Dynamics)结合应用进行分析总结,重点对某沿海地区风场进行多维度分析。分析结果得出:应用激光测风雷达能提高对风场数据获取水平,为进一步获取更为精准的风场信息,可将激光测风雷达观测的数据和CFD数值模拟等进行综合分析。最后对激光测风雷达设备在技术参数等方面提出展望。

     

    Abstract: Doppler lidar plays an important role in the wind field observation in clear sky weather due to its high measurement accuracy and high spatial-temporal resolutions. This paper reviews the research status and application of the laser wind measurement radar technology at home and abroad. Based on the analyses of current problems of the laser wind measurement radar, directions for further research are proposed. This paper also analyzes and summarizes the application of laser wind measurement radar in wind fields and the integration of meso-scale radar measurements and CFD simulations. Especial attention is paid on a multi-scale analysis of wind fields in a coastal area. The results show that the laser wind measurement radar can enhance the capability of wind field data acquisition. To acquire more accurate wind field information, a comprehensive study of the radar measurements and numerical simulations is preferable. Finally, prospects for the technical parameters of laser wind measurement radars are put forward.

     

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