The influence of terrain and inversion layer on pollutant transfer over Lanzhou City. 地形和逆温层对兰州市污染物输送的影响。
The thick and steady inversion layer in the mid tropospheric and low-layer cold layer were the direct cause of large-scale frozen rain. 深厚而稳定的对流层中层逆温层和低层冷层的存在是大范围冻雨出现的直接原因。