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本文以浙江省嵊泗县马迹山观测站1993年11月~1994年10月的实测风资料为依据,并利用嵊泗气象站同期风的观测资料及多年统计资料,对该海区的风况特征进行统计分析。结果表明,马迹山观测站所呈现的风的变化规律和本区长期站——嵊泗气象站的风的变化规律颇为一致。但由于受各自地形的影响,两站间的风速存在着局地性的差异。该海区常风向为偏NNW向和偏SE向;强风向为偏SSE向和偏NW向。风向具有明显的季风特征,冬半年盛行偏N风,夏半年盛行偏S风。冬半年的平均风速略大于夏半年。造成该海区大风的主要天气系统为冷空气和气旋(热带气旋和温带气旋)。
Based on the measured wind data from November 1993 to October 1994 in Majishan Observatory of Shengsi County, Zhejiang Province, and based on the observation data and multi-year statistical data of Shengsi meteorological station in the same period, the wind characteristics in this area Statistical Analysis. The results show that the variation pattern of the wind presented by the observatory in Mount Jishan is quite consistent with that of the long-term station-Shengsi Weather Station. However, due to the influence of their own terrain, there is a local difference in the wind speed between the two stations. The normal wind direction in the sea area is NNW-trending and SE-trending; strong winds are SSE-trending and NW-trending. Wind direction has obvious monsoon characteristics, winter prevalence of partial N wind in mid-summer, summer prevalence of partial S wind. The average wind speed in winter is slightly larger than summer half year. The main weather systems causing the strong winds in the area are cold air and cyclones (tropical cyclones and temperate cyclones).