研究简报
范绍佳,朱海明,林雪兰,马淑琴.沿海地区大气扩散参数的初步分析[J].环境科学学报,1997,17(4):506-508
沿海地区大气扩散参数的初步分析
- A PRELIMINARY ANALYSIS OF ATMOSPHERIC DIFFUSION PARAMETERS IN A COASTAL REGION OF GUANGDONG PROVINCE
- 基金项目：广东省自然科学基金
- 作者
- 单位
- 范绍佳
- 中山大学大气科学系,广州 510275
- 朱海明
- 中山大学大气科学系,广州 510275
- 林雪兰
- 中山大学大气科学系,广州 510275
- 马淑琴
- 中山大学大气科学系,广州 510275
- 摘要：大气扩散参数是估算污染物地面浓度的重要参数.
- Abstract：We analyzed the data measured by three axes propeller anemometers at 10 and 75 m level at coastal Guangdong, with the statistical turbulent theory. The atmospheric diffusion parameters were studied. The results indicate that, in the coastal region, the horizontal turbulence was controlled by large scale eddies and the vertical turbulence was controlled by relatively small scale eddies. There was an obvious change in diffusion parameters when the sea and land breezes changed their direction from sea to land or vice versa. The change in lower layer was more significant than that in the upper layer.
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