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将光纤湍流测量系统搭载于我国的远望号航天测量船, 首次实现了远海海面大气光学湍流的空间多点同步测量, 初步获得了远海海面大气光学湍流的基本特征和定量数据. 测量共进行了37天, 测量数据处理包括大气光学湍流强度的统计分析、采用Greenwood湍流空间相关函数模型对实测的光学湍流空间相关函数进行非线性拟合从而获得湍流的空间外尺度, 以及采用分段拟合算法获取光学湍流的功率谱标度指数. 结果表明: 海面大气光学湍流强度中等偏弱, 且无明显规律性的日变化趋势; 空间外尺度较小, 约为0.2-0.3 m; 湍流谱标度指数符合-5/3次方的概率均为25%左右, 低于相应的近地面概率.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.
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Keywords:
- maritime atmospheric optics /
- optical turbulence intensity /
- spatial outer scale /
- power spectrum scaling exponent
[1] Arkadi Z, Ephim G, Norman S K 2010 Opt. Commun. 283 1229
[2] Zhu W Y, Ma X S, Rao R Z 2006 Infr. Laser Eng. 35 354 (in Chinese) [朱文越, 马晓珊, 饶瑞中 2006 红外与激光工程 35 354]
[3] Hutt D L 1999 Opt. Eng. 38 1288
[4] Wu X Q, Fang Q, Rao R Z 2006 High Power Laser and Particle Beams 18 1605 (in Chinese) [吴晓庆, 方强, 饶瑞中 2006 强激光与粒子束 18 1605]
[5] Wu X J, Wang H X, Li B F, Liu C H 2015 Acta Opt. Sin. 35 0401002 (in Chinese) [吴晓军, 王红星, 李笔锋, 刘传辉 2015 光学学报 35 0401002]
[6] Vetelino F S, Grayshan K, Young C Y 2007 J. Opt. Soc. Am. A 24 3198
[7] Friehe C A 1977 Appl. Opt. 16 334
[8] Dai F S, Li Y K 2007 Acta Opt. Sin. 27 191 (in Chinese) [戴福山, 李有宽 2007 光学学报 27 191]
[9] Webster P J, Lukas R 1992 Bull. Ame Meteorol. Soc. 73 1377
[10] Wang J, Duan Z Q, Yao X H, Gao H W 2013 J. Trop. Oceanogr. 32 3 (in Chinese) [王洁, 段自强, 姚小红, 高会旺 2013 热带海洋学报 32 3]
[11] Gao H W, Gu M, Wang R L, Xue Y H 2009 Periodical of Ocean University of China 39 563 (in Chinese) [高会旺, 顾明, 王仁磊, 薛宇欢 2009 中国海洋大学学报 39 563]
[12] Mei H P 2007 Ph. D. Dissertation (Hefei: Hefei Institutes of Physical Science, the Chinese Academy of Sciences) (in Chinese) [梅海平 2007 博士学位论文(合肥: 中国科学院合肥物质科学研究院)]
[13] Xiao S M 2014 Ph. D. Dissertation (Hefei: Hefei Institutes of Physical Science, the Chinese Academy of Sciences) (in Chinese) [肖树妹 2014 博士学位论文(合肥: 中国科学院合肥物质科学研究院)]
[14] Rao R Z 2012 Modern Atmospheric Optics (Beijing: Science Press) p156 (in Chinese) [饶瑞中 2012 现代大气光学(北京: 科学出版社)第156页]
[15] Wu J, Le S X 1988 The Light Propagation Theory in Random Medium (Chengdu: Institute of Radio Engineering Press) pp142-144 (in Chinese) [吴健, 乐时晓 1988 随机介质中的光传播理论(成都: 成都电讯工程学院出版社)第142-144页]
[16] Lukin V P 2005 Proceedings of SPIE Bellingham, WA, September 21-22, 2005 p598101
[17] Greenwood D P, Tarazano D O 2008 J. Opt. Soc. Am. A 25 1349
[18] Consortini A, Ronchi L 1972 Appl. Opt. 11 1205
[19] Voitsekhovich V V 1995 J. Opt. Soc. Am. A 12 1346
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[1] Arkadi Z, Ephim G, Norman S K 2010 Opt. Commun. 283 1229
[2] Zhu W Y, Ma X S, Rao R Z 2006 Infr. Laser Eng. 35 354 (in Chinese) [朱文越, 马晓珊, 饶瑞中 2006 红外与激光工程 35 354]
[3] Hutt D L 1999 Opt. Eng. 38 1288
[4] Wu X Q, Fang Q, Rao R Z 2006 High Power Laser and Particle Beams 18 1605 (in Chinese) [吴晓庆, 方强, 饶瑞中 2006 强激光与粒子束 18 1605]
[5] Wu X J, Wang H X, Li B F, Liu C H 2015 Acta Opt. Sin. 35 0401002 (in Chinese) [吴晓军, 王红星, 李笔锋, 刘传辉 2015 光学学报 35 0401002]
[6] Vetelino F S, Grayshan K, Young C Y 2007 J. Opt. Soc. Am. A 24 3198
[7] Friehe C A 1977 Appl. Opt. 16 334
[8] Dai F S, Li Y K 2007 Acta Opt. Sin. 27 191 (in Chinese) [戴福山, 李有宽 2007 光学学报 27 191]
[9] Webster P J, Lukas R 1992 Bull. Ame Meteorol. Soc. 73 1377
[10] Wang J, Duan Z Q, Yao X H, Gao H W 2013 J. Trop. Oceanogr. 32 3 (in Chinese) [王洁, 段自强, 姚小红, 高会旺 2013 热带海洋学报 32 3]
[11] Gao H W, Gu M, Wang R L, Xue Y H 2009 Periodical of Ocean University of China 39 563 (in Chinese) [高会旺, 顾明, 王仁磊, 薛宇欢 2009 中国海洋大学学报 39 563]
[12] Mei H P 2007 Ph. D. Dissertation (Hefei: Hefei Institutes of Physical Science, the Chinese Academy of Sciences) (in Chinese) [梅海平 2007 博士学位论文(合肥: 中国科学院合肥物质科学研究院)]
[13] Xiao S M 2014 Ph. D. Dissertation (Hefei: Hefei Institutes of Physical Science, the Chinese Academy of Sciences) (in Chinese) [肖树妹 2014 博士学位论文(合肥: 中国科学院合肥物质科学研究院)]
[14] Rao R Z 2012 Modern Atmospheric Optics (Beijing: Science Press) p156 (in Chinese) [饶瑞中 2012 现代大气光学(北京: 科学出版社)第156页]
[15] Wu J, Le S X 1988 The Light Propagation Theory in Random Medium (Chengdu: Institute of Radio Engineering Press) pp142-144 (in Chinese) [吴健, 乐时晓 1988 随机介质中的光传播理论(成都: 成都电讯工程学院出版社)第142-144页]
[16] Lukin V P 2005 Proceedings of SPIE Bellingham, WA, September 21-22, 2005 p598101
[17] Greenwood D P, Tarazano D O 2008 J. Opt. Soc. Am. A 25 1349
[18] Consortini A, Ronchi L 1972 Appl. Opt. 11 1205
[19] Voitsekhovich V V 1995 J. Opt. Soc. Am. A 12 1346
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