| 重庆地区近地面层湍流谱特征分析 |
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| 引用本文： | 王蓓蕾,曹文俊.重庆地区近地面层湍流谱特征分析[J].南京气象学院学报,1997,20(2):237-242. |
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| 作者姓名： | 王蓓蕾 曹文俊 |
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| 作者单位： | 南京气象学院大气物理学系 |
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| 基金项目： | 中国科学院大气边界层物理和大气化学国家重点实验室（LAPC）资助 |
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| 摘 要： | 利用１９８９年１２月－１９９０年１月重庆地区的观测资料，计算了一般天气条件下和雾中的湍流谱。结果表明，重庆地区中性和不稳定的条件下，湍谱的峰值频率比平坦地形大，峰值区较窄。在夜间静力稳定条件下，湍谱的低频部分能量突然增大。也揭示了雾中湍流说的一些特性。
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| 关 键 词： | 大气边界层 大气湍流 湍流谱 近地面层 重庆地区 |
SPECTRAL ENERGY CHARACTERISTICS OF NEAR SURFACE LAYER TURBULENCE OVER CHONGQING AREA |
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| Wang Beilei,Cao Wenjun.SPECTRAL ENERGY CHARACTERISTICS OF NEAR SURFACE LAYER TURBULENCE OVER CHONGQING AREA[J].Journal of Nanjing Institute of Meteorology,1997,20(2):237-242. |
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| Authors: | Wang Beilei Cao Wenjun |
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| Abstract: | Turbulence spectra are investigaed that result in the presence of fog and otherwise using Chongqing wind record from December 1989 to January 1990. Results show that under neutral and unstable stratification the frequency of peaks is higher in this hilly area as compared to the plains, with a narrower domain of the peaks; under nighttime hydrostatic stability, the energy increases sharply in the low frequency portion. Besides, case studies exhibit significant features of such spectra on a foggy day. |
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| Keywords: | atmospheric boundary layer turbulence turbulence spectrum |
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