“冷锋”是一个气象名词,是指冷空气与暖空气的交接面,而这个交接面是被冷空气推动的(也就是冷空气势力更强大些)。冷锋过境是一种天气突变,主要表现为气温、气压、降水、风向、风速的突然变化。按气候规律,我国大陆各地冷锋过境的次数均很多,时段也很长,以冬季最为频繁。 “Cold front” is a meteorological term referring to the interface between cool air and warm air, which is driven by cool air (that is, the cold air is more powerful). Cold front transit is a sudden change in weather, mainly manifested as sudden changes in temperature, pressure, precipitation, wind direction and wind speed. According to the laws of the climate, the number of cold frontier fronts in Mainland China is many and the period of time is also long, with the most frequent in winter.