【摘要】 亚洲东南部西南季风区和太平洋信风区环流特点有显著的不同。在季风区有南部下沉、北部高原地区上升的垂直季风环流,高层有东风急流,下层有达400毫巴高度的深厚的西南气流。在信风区、低纬度则存在着典型的Hadley环流,高层有夏季太平洋中部副热带西风急流,下部有东北信风,东风随高度减弱。 季风垂直环流的存在,进一步说明了季风形成的因子。更多还原

【Abstract】 The existence of the monsoon vertical circulation cell, as shown in fig. 8, which consists of an ascending current near and over the Tibetan plateau and a descending current on the south, is directly proved by calculations from the actual wind data in July 1958. In the same period, the meridional circulation is a typical Hadley cell in the Pacific trade wind area (fig. 9). In S-W monsoon area, there exists the easterly jet in the upper troposphere and the south westerlies in the lower, but in the Pacific trade wind area, there is a westerly jet near 200mb level and the easterlies in the lower troposphere. The factors which cause the monsoon circulation are discussed.更多还原