Direct comparison between in situ and VHF oblique radar measurements of refractive index spectra: A new successful attempt
Direct comparison between in situ and VHF oblique radar measurements of refractive index spectra: A new successful attempt
复制标题
原位和甚高频倾斜雷达折射率光谱测量的直接比较：新的成功尝试
DOI：
10.1029/96rs02087
复制
发表时间：
1996
期刊：
影响因子：
1.6
通讯作者：
C. Sidi
中科院分区：
文献类型：
--
作者：
H. Luce;F. Dalaudier;M. Crochet;C. Sidi
Dalaudier等人[1989]对大气湍流温度谱的现场测量和雷达测量进行了直接比较。斜向重建采用了惯性子区各向同性湍流散射的普遍假设。然而，结果是“令人困惑的”，因为无论是形状，动态范围，还是功率水平都没有正确再现。因此，需要进行其他调查，以确定这些分歧的原因。使用基于相同模型和更广泛和改进的数据集的基本相同的方法进行了新的尝试。这里给出的结果对于大多数测量都非常令人满意。这一协议使我们能够理解，一些错误和技术问题是Dalaudier等人[1989]所描述的差异的根源。从新的结果可以得出结论，所使用的方法，在各向同性模型的基础上，在惯性子范围，是足够的，公平地再现大多数VHF雷达测量在15°的天顶。
A direct comparison between in situ and radar measurements of temperature spectra of atmospheric turbulence was performed by Dalaudier et al. [1989]. The widely accepted hypothesis of scattering from isotropic turbulence in the inertial subrange was used for the oblique reconstructions. However, the results were “puzzling” because neither the shape, the dynamic range, nor the power level was correctly reproduced. Other investigations were thus needed in order to determine the causes of these disagreements. A new attempt was performed using essentially the same method based on the same model and a more extensive and improved data set. The results, presented here, are now very satisfying for most of measurements. This agreement allows us to understand that some errors and technical problems were at the origin of the discrepancies described by Dalaudier et al. [1989]. From the new results it can be concluded that the method used, based on the isotropic model in the inertial subrange, is adequate to fairly reproduce most of the VHF radar measurements at 15° from the zenith.