贺园园, 程雪玲, 朱蓉. 适用于平坦草原的近地层以上风廓线推算方法[J]. 太阳能学报, 2024, 45(6): 451-460. DOI: 10.19912/j.0254-0096.tynxb.2023-0169
引用本文: 贺园园, 程雪玲, 朱蓉. 适用于平坦草原的近地层以上风廓线推算方法[J]. 太阳能学报, 2024, 45(6): 451-460. DOI: 10.19912/j.0254-0096.tynxb.2023-0169
He Yuanyuan, Cheng Xueling, Zhu Rong. METHOD OF WIND SPEED PROFILE EXTRAPOLATING FROM SURFACE OBSERVATIONS OVER FLAT GRASSLAND[J]. Acta Energiae Solaris Sinica, 2024, 45(6): 451-460. DOI: 10.19912/j.0254-0096.tynxb.2023-0169
Citation: He Yuanyuan, Cheng Xueling, Zhu Rong. METHOD OF WIND SPEED PROFILE EXTRAPOLATING FROM SURFACE OBSERVATIONS OVER FLAT GRASSLAND[J]. Acta Energiae Solaris Sinica, 2024, 45(6): 451-460. DOI: 10.19912/j.0254-0096.tynxb.2023-0169

适用于平坦草原的近地层以上风廓线推算方法

METHOD OF WIND SPEED PROFILE EXTRAPOLATING FROM SURFACE OBSERVATIONS OVER FLAT GRASSLAND

  • 摘要: 为得到从地面观测数据推测高层风廓线的表达式,基于锡林浩特国家气候观象台1年的观测,确定粗糙度、边界层高度和地转风计算方法,将不同稳定度的平均风廓线与建立的边界层风廓线模型计算结果进行比较。研究发现:基于再分析资料得到的地转阻力参数预测的地转风与实际地转风接近,对数风廓线在中性和不稳定情况下计算准确,且计算方法简单;Deaves-Harris模型适用于强风情况;改进混合长的Gryning模型和考虑Ekman层科氏力的两层风廓线模型在不同的稳定度情况下模拟结果均比较准确,但计算方法复杂;改进的Gryning模型适用于夜间残留层的风廓线模拟。

     

    Abstract: To establish expressions for determining high-level wind profiles using ground-based observations, this research validated various methods to determine the roughness, boundary layer height, and geostrophic wind speed, based on 1-year of observations from the Xilinhot National Climatological Observatory. On this basis, the average wind profiles under different stability conditions were compared with the caculation results of established boundary layer wind profile models. The results demonstrated that the predicted geostrophic wind speeds based on geostrophic resistance drag parameters obtained from reanalysis data are close to the actual wind speeds. The logarithmic wind profile model can provide accuracy and simple cauculation under neutral and unstable conditions. The Deaves–Harris(DH) model was suitable for strong winds. The modified mixing-length Gryning model and the two-layer wind profile model that considers the Ekman layer Coriolis force can obtain relative accurate simulations under different stability conditions, albeit with the disadvantage of requiring complex computational procedures. The improved Gryning model is suitable for simulating wind profiles for the nocturnal residual layer.

     

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