渤海北部沿海近岸雾的特征分析

分析了渤海北部沿海近岸营口站和熊岳站海雾的时间分布和地理分布等。结果表明：1954-2007年渤海北部沿海近岸两站浓雾日数呈递增趋势，两站白天递增趋势均强于夜间, 熊岳站通过0.05显著性检验；1954-2007年沿海近岸两站的轻雾日数整日、白天和夜间均呈递增趋势，并通过0.01显著性检验；渤海北部沿海近岸的浓雾逐月分布集中在11月至翌年2月；渤海北部沿岸海雾的逐时分布集中，出现频率最高的时间是06-08时。

Characteristics of sea fog along the north coast of the Bohai Sea in China

The temporal and spatial distributions of sea fog based on the data at Yingkou and Xiongyue weather stations along the north coast of the Bohai Sea in China were analyzed.The results indicated that the numbers of thick fog days from 1954 to 2007 at two weather stations are in the increasing trends,especially in nighttime,and it passes the significance test with 0.05 levels at Xiongyue weather station.The numbers of light fog days at two weather stations are in the increasing trend from 1954 to 2007,so are the numbers of light fog days in daytime and in nighttime,and they all pass the significance test with 0.01 levels.The monthly thick fog days mainly appear from November to February along the north coast of the Bohai Sea in China.The hourly sea fog concentrates in the morning,especially from 6:00 to 8:00(BST).