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全面统计了温州机场1991—2013年期间发生的历次强降雨,包括大雨和暴雨(含大暴雨),分析了强降雨的年变化、季节变化和月变化特点,对暴雨发生的天气形势进行了统计和分型,得出,强降雨总体呈增加趋势,每10 a增加约0.7个大雨日和0.8个暴雨日;大雨各季日数从多到少依次是春夏秋冬,暴雨各季日数依次是夏春秋冬,大暴雨各季日数依次是秋夏冬春;大雨、暴雨和大暴雨各月日数分布曲线分别呈“凸”字形、“M”形和单峰双谷型;暴雨天气形势可分为热带气旋型、低压型、倒槽型和冷锋型等四种类型,其中热带气旋型暴雨出现日数明显偏多。这些结论有助于航空气象用户掌握机场强降雨的一般性特点,提高强降雨天气条件下的运行决策和效率,也有助于航空气象从业人员做好强降雨天气的预警预报和服务,更好地服务于飞行安全。
This paper comprehensively computes all previous heavy rains, including heavy rains and heavy rains (including heavy rainstorms) occurred in Wenzhou Airport during 1991-2013. The annual, seasonal and monthly variations of heavy rains are analyzed. The weather conditions of heavy rains are statistically analyzed and According to the classification, it shows that the heavy rainfall shows an overall increasing trend, increasing about 0.7 rainy days and 0.8 rainy days every 10 years; the days of rainy season are decreasing from spring to summer, the spring, summer, The autumn, winter and heavy rainy seasons are followed by autumn, winter and spring. The monthly distribution curves of heavy rain, heavy rain and heavy rain show “convex”, “M” and unimodal double valleys respectively. The heavy rainy weather can be divided into tropical Cyclone type, low pressure type, inverted trough type and cold front type. Among them, the number of days in which tropical cyclone type rainstorm appeared obviously more. These conclusions help aviation weather users grasp the general characteristics of heavy rainfall in airports and improve operational decision-making and efficiency in heavy rainy weather conditions. They also help aeronautical meteorological personnel to make early warning and prediction and services of strong rainfall weather and better serve them In flight safety.