下沉风 即"冰川风"。它往往出现在冰川上,这种风不受昼夜变化的影响,因为冰川的表面温度总是低于其上面的空气温度,所以它总是沿着下坡刮起。但在冰川向斜坡延伸的末端处,也会出现上坡风,这种风的强度往往受冰川范围大小的控制。
海里大约90%的塑料由风或水从陆地带来,它们分解或下沉需要几十年的时间。
About 90% of the plastic in the sea has been carried there by wind or water from land. It takes decades to decompose or sink.
这种温度差异使绿洲风环流产生,并且使绿洲区产生下沉运动、沙漠区产生上升运动。
The temperature difference between oasis and surrounding desert drives an oasis breeze circulation, in which there is the downdraft over the oasis and the updraft over the desert.
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