Outer scale of turbulence appropriate to modeling refractive-index structure profiles.
Outer scale of turbulence appropriate to modeling refractive-index structure profiles.
复制标题
DOI：
10.1364/ao.27.000155
复制
发表时间：
1988
期刊：
影响因子：
1.9
通讯作者：
C. Coulman;J. Vernin;Y. Coqueugniot;J. Caccia
中科院分区：
文献类型：
--
作者：
C. Coulman;J. Vernin;Y. Coqueugniot;J. Caccia
湍流的外尺度L（0）是由恒星闪烁的空间-角相关测量得到的折射率结构系数C（2）（N）值计算的。发现在法国、美国、日本等国的大范围观测中，L（0）</= 5 m，和智利，它对海拔Z的依赖性在所有这些地点都遵循相同的一般形式。结果表明，利用标准气象探空资料和L（0）（Z）曲线预报C（2）（N）（Z）廓线是可行的。一个简单的模型，基于量纲分析和一个更复杂的随机模型进行了比较，但后者似乎没有优势。
The outer scale of turbulence L (0) has been calculated from values of the refractive-index structure coefficient C(2)(N) obtained from spatio-angular correlation measurements of stellar scintillation. It is found that L(0) </= 5 m for a large range of observations in France, U.S.A., and Chile and that its dependence on altitude Z follows the same general form at all these sites. The prediction of C(2)(N)(Z) profiles is shown to be feasible utilizing standard meteorological radiosonde data and this L(0)(Z) curve. A simple model based on dimensional analysis and a more complicated stochastic model are compared, but the latter appears to have no advantage.