Because of the cold air from Mongolian anticyclone accumulating in the Junggar Basin and 5 months steady snow accumulation, the ground layer atmosphere in Urumqi City is relatively steady in winter.

• 由于蒙古反气旋的冷空气在准噶尔盆地堆积，使得乌鲁木齐冬季近地面大气稳定。