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本文统计分析了哈尔滨机场1986-2009年3月份的气温,得出近24 a 3月份的平均气温总体趋势为先升后降,最低气温的变化先于最高气温,其对平均温度的影响较大。气温跟降水成负相关关系,暖干、冷湿相伴,且最高温度与降水日数相关显著。低气温对应的除冰日数多,高气温则少。雪深对跑道结冰有一定的作用,如果预报日气温均≤-3℃,且雪深≥3 cm,要考虑跑道结冰;如果预报日气温均≥2℃,当有雨夹雪或雪时,考虑跑道结冰;如果预报当日气温经过0℃,只要降水发生时段的温度在±3℃,无论雨夹雪或雪的时长、强度是多少,都应该考虑结冰。
This paper statistically analyzes the air temperature in Harbin airport from March 1986 to March 2009, and draws the conclusion that in the past 24 months, the general trend of the average temperature in March increased first and then decreased. The change of the minimum temperature before the maximum air temperature has a greater impact on the average temperature . The correlation between temperature and precipitation is negative, accompanied by warm and dry, cold and wet, and the correlation between maximum temperature and precipitation days is significant. Low temperature corresponding to the deicing day number, high temperature is less. Snow depth has a certain effect on runway freezing. If the predicted daily average temperature is ≤ -3 ℃ and the snow depth is ≥3 cm, runway freezing should be considered. If the forecast daily average temperature is ≥2 ℃, Runoff icing should be considered; if the temperature is 0 ° C on the forecast day, icing should be considered irrespective of the strength of the snow or snow, as long as the precipitation occurs at a temperature of ± 3 ° C.