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空间信息技术支持下的沿海风能资源评价

DOI: 10.11820/dlkxjz.2004.06.005, PP. 41-48

Keywords: 风能,空间信息技术,评价,资源

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Abstract:

沿海地区是我国重要的风能资源区,由于近地面风场具有很强的时空变异性,给风能资源定量评价带来了很大困难。空间信息技术的发展为我们提供了新的视角和手段,近年来,利用星载合成孔径雷达(SAR)进行沿海风场信息遥感反演已从试验逐步走向成熟,它以布拉格原理为依据,建立合成孔径雷达后向散射系数与海面风场之间的关系,反演风速、风向等关键参数,并进而对研究区风能资源进行准确的定量评价。本文回顾了本领域国内外研究进展,重点阐述了风场要素反演的基本方法和校验手段,探讨了目前存在的一些问题和改进方法,并对本方法在我国的应用前景作了展望。

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