物理学报2016，Vol.65Issue(7)：074206-1-074206-6,6.DOI:10.7498/aps.65.074206
远海海面大气光学湍流实验测量∗
Exp erimental investigation of op en sea atmospheric optical turbulence
摘要
Abstract
In this article, a high-quality fiber optical turbulence sensing array is arranged on the ocean-going instrumentation ship-Yuan Wang for 37 day continuous measurement. It is the first time that the spatial multipoint simultaneous measurement of maritime atmospheric optical turbulence has been realized. According to the measurement, the essential characteristics and quantitative data of the atmospheric optical turbulence on the open sea are obtained. Then the Greenwood spatial correlation function model is used for evaluating the outer scale of optical turbulence by a nonlinear fitting algorithm. Finally, the optical turbulence spectrum is divided into two sections, and the power spectrum scaling exponent is given by a section algorithm. Results show that the intensity of maritime atmospheric optical turbulence is a little smaller than that in the near ground layer and has no obvious diurnal variation characteristic. The value of outer scale is small and in a range of 0.2–0.3 m. It is easily found that the probability that the turbulence spectrum scaling exponent conforms to −5/3 is about 25% near the surface of open sea, which is smaller than that in the near ground layer.关键词
海洋大气光学/湍流强度/空间外尺度/功率谱标度指数Key words
maritime atmospheric optics/optical turbulence intensity/spatial outer scale/power spectrum scaling exponent引用本文复制引用
王倩,梅海平,李玉剑,邵士勇,李学彬,饶瑞中..远海海面大气光学湍流实验测量∗[J].物理学报,2016,65(7):074206-1-074206-6,6.基金项目
国家自然科学基金(批准号:41205010)资助的课题 （批准号:41205010）
