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乌东德是金沙江的一段峡谷。这里,两岸连山,河谷深切,分水岭高程在3000米左右,江面海拔800多米,属于西南地区典型的干热河谷。由于地处横断山区,印度洋的暖湿气流沿喜马拉雅南坡爬升,先是翻越喜马拉雅山脉进入雅鲁藏布河谷,然后继续沿河谷向北往藏南山地浸漫;而另一股气流则向东连续翻越冈底斯山、高黎贡山、怒山、云岭、点苍山、玉龙雪山、沙鲁里山,以及南边的无量山、哀牢山。春夏时节,气温上升,印度洋水汽加速蒸发,并源源不断向北和东
Wudong is a gorge of the Jinsha River. Here, both sides of the mountains, deep valleys, watershed elevation of 3000 meters, the river surface elevation of 800 meters, belonging to the typical dry hot valley in the southwest. Due to its location in the Hengduan Mountains, warm and humid currents of the Indian Ocean climb along the southern slope of the Himalayas, first over the Himalayas into the Brahmaputra valley, then continue northward along the valley to the southern Tibetan mountains; while the other flows to the east Continuously over the Gangdise Hill, Gaoligongshan, Nu Mountain, Yunling, Dian Cangshan, Jade Dragon Snow Mountain, Shaluli Hill, and the southern Wuliangshan, Ailao Mountain. Spring and summer season, the temperature rises, the Indian Ocean vapor to evaporate rapidly, and a steady stream of north and east