The power spectrum of water optical turbulence is shown to vary with its average temperature $\langle T \rangle$ and average salinity concentration $\langle S \rangle$, as well as with light wavelength $\lambda$. This study explores such variations for $\langle T \rangle \in [{0{^ \circ}{\rm C},30{^ \circ}{\rm C}}]$, $\langle S \rangle \in [{0\;{\rm ppt},40\;{\rm ppt}}]$ covering most of the possible natural water conditions within the Earth’s boundary layer and for visible electromagnetic spectrum, $\lambda \in [{400\;{\rm nm},700\;{\rm nm}}]$. For illustration of the effects of these parameters on propagating light, we apply the developed power spectrum model for estimation of the scintillation index of a plane wave (the Rytov variance) and the threshold between weak and strong turbulence regimes.

中文翻译：

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任意平均温度，盐浓度和光波长下的天然水湍流的空间功率谱

水光学湍流的功率谱被示出具有其平均温度，以改变$ \ langleŤ\ rangle $和平均盐度浓度$ \ langle小号\ rangle $，以及与光波长$ \拉姆达$。这项研究探索了$ \ langle T \ rangle \ in [{0 {^ \ circ} {\ rm C}，30 {^ \ circ} {\ rm C}}] $，$ \ langle S \ rangle \ [{0 \; {\ rm ppt}，40 \; {\ rm ppt}}] $涵盖了地球边界层内的大多数可能的自然水状况，并且对于可见的电磁频谱，$ \ lambda \ in [{400 \; {\ rm nm}，700 \; {\ rm nm}}] $。为了说明这些参数对传播光的影响，我们使用发达的功率谱模型来估计平面波的闪烁指数（Rytov方差）以及弱湍流和强湍流范围之间的阈值。