【摘要】 沿海地区大气扩散参数的初步分析范绍佳朱海明林雪兰马淑琴（中山大学大气科学系，广州５１０２７５）关键词沿海地区；大气扩散参数．大气扩散参数是估算污染物地面浓度的重要参数．我国有关标准与导则规定平原、丘陵山区、城市和工业区扩散参数可采用Ｐａｓｑｕｉｌ?..更多还原

【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.更多还原