重庆市鱼洞第二小学杨彬彬同学提问:重庆的雾为什么特别多?大博士回答重庆在长江和它的支流嘉陵江的汇合口,空气比较湿润,而周围又有高山阻挡,地面崎岖不平,风力不强,空气中的水蒸气不易被吹散。每当天气晴朗、微风吹拂的夜晚,地面散发出来的热量急剧冷却,靠近地面的潮湿空气由于温度迅速下降,空气中的一部分水蒸气就会凝结成无数细小的水滴,漂浮在贴近地面的低空, Chongqing Yudong Primary School Yang Binbin classmate questions: Why Chongqing fog is particularly large? Dr. Daoxi answer Chongqing in the junction of the Yangtze River and its tributaries Jialing River, the air is humid, but there are mountains around the block, rugged ground, the wind is not Strong, the water vapor in the air is not easy to be blown away. Whenever the weather is fine and the breeze is blowing, the heat radiated from the ground cools down sharply. As the temperature of the moist air near the ground drops rapidly, part of the water vapor condenses into numerous tiny water droplets floating in the low ground close to the ground,