Mahon Rita, Moore Christopher I, Ferraro Mike S, Rabinovich William S, Frederickson Paul A
Appl Opt. 2020 Nov 20;59(33):10599-10612. doi: 10.1364/AO.405185.
In this paper, a study is made of the refractive index structure parameter 2, as derived from angle-of-arrival (AOA) measurements made on the beam after propagation along a 16 km slant path across the Chesapeake Bay. These measurements are compared with 2 estimates derived from the Navy Atmospheric Vertical Surface Layer Model (NAVSLaM), which are based upon prevailing meteorological conditions. Correlation coefficients for the reported data vary between 0.64 and 0.9. Despite the Chesapeake Bay theoretically being a difficult location for employing a Monin-Obukhov similarity theory-based model such as NAVSLaM, the agreement between the AOA 2 measurements and the NAVSLaM 2 estimates was, in many cases, good. A possible explanation of this agreement between the modeled and measured 2 values is that the large air-water temperature differences encountered provided such strong forcing for the NAVSLaM model that any potential violations of the Monin-Obukhov similarity theory assumptions had only a secondary influence on the 2 estimates.
本文对折射率结构参数2进行了研究，该参数是根据光束在切萨皮克湾上空沿16公里倾斜路径传播后进行的到达角（AOA）测量得出的。这些测量结果与基于海军大气垂直表层模型（NAVSLaM）得出的2估计值进行了比较，后者是基于当时的气象条件。报告数据的相关系数在0.64至0.9之间变化。尽管从理论上讲，切萨皮克湾对于采用基于莫宁-奥布霍夫相似性理论的模型（如NAVSLaM）来说是一个困难的地点，但在许多情况下，AOA 2测量值与NAVSLaM 2估计值之间的一致性良好。对模拟和测量的2值之间这种一致性的一种可能解释是，所遇到的较大的空气-水温度差异为NAVSLaM模型提供了如此强大的驱动力，以至于莫宁-奥布霍夫相似性理论假设的任何潜在违反情况对2估计值的影响都只是次要的。
