强激光与粒子束, 2002, 14 (2): 233, 网络出版: 2006-05-15
大气温度起伏谱的测量
Measurements of the spectrum of atmospheric temperature fluctuations
摘要
用直径1μm和10μm金属丝分别测量了大气温度起伏功率谱,提出了测量湍流外尺度的方法.实测结果表明:在复杂的光传输路径上至少有50%的温度谱不符合Kolmogorov的-5/3定律;用直径1μm丝进行单点测量的C2n和直径10μm丝进行双点测量的C2n较为一致;80%的外尺度不超过7m.
Abstract
The spectrum of temperature fluctuations have been measured by 1μm and 10μm diameter wires.A method for measuring outer scale is presented.The results of measurement show that at least 50% temperature spectra deviate from kolmogorov's "-5/3 low" over complex terrain. The results measured by a single sensor and a couple of sensors respectively agree well with each other. 80% of the outer scales are less than 7 meters.
吴晓庆, 王英俭, 曾宗泳, 龚知本. 大气温度起伏谱的测量[J]. 强激光与粒子束, 2002, 14(2): 233. 吴晓庆, 王英俭, 曾宗泳, 龚知本. Measurements of the spectrum of atmospheric temperature fluctuations[J]. High Power Laser and Particle Beams, 2002, 14(2): 233.
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