THE EXCHANGE OF AIR BETWEEN STRATOSPHERE AND TROPOSPHERE
THE EXCHANGE OF AIR BETWEEN STRATOSPHERE AND TROPOSPHERE
复制标题
平流层与对流层之间的空气交换
DOI：
--
复制
发表时间：
1960
期刊：
影响因子：
--
通讯作者：
P. Storebø
中科院分区：
文献类型：
--
作者：
P. Storebø
摘要 平流层空气稳定分层，但臭氧和核弹碎片的测量表明存在垂直混合。示踪剂测量表明，空气通过平均净环流进入热带地区的平流层，向极地输送，并在高纬度地区离开平流层。航空运输似乎足以在两年内完全替代平流层空气。热带对流层顶被认为是上升的冷空气与来自高纬度地区的暖空气混合的结果。极地对流层顶被认为是向下流动的平流层空气上部流与发生对流的下部区域之间的混合层。春季臭氧增加被认为是由于平流层极地涡旋破裂引起的下沉，从高水平开始。
Abstract Stratospheric air is stably stratified, but vertical mixing is indicated by measurements of ozone and nuclear bomb debris. Tracer measurements suggest a mean net circulation by which air enters the stratosphere in the tropics, is transported polewards and leaves the stratosphere at higher latitudes. The air transport seems to be sufficient for full replacement of stratospheric air within two years. The tropical tropopause is regarded as the result of ascending cold air being mixed with warmer air from higher latitudes. The polar tropopause is regarded as the mixing layer between an upper current of stratospheric air going downwards and a lower region where convective currents occur. Springtime increase of ozone is thought to be due to subsidence associated with the breakdown of the stratospheric polar vortex, beginning at a high level.