Shannan connects Lhasa to the north, Nyingchi to the east, India to the south, the Kingdom of Bhutan to the southwest and Shigatse Prefecture to the northwest. it is one of the popular places for Tibet group tours.
It covers 73.5 thousand square kilometers’ area, takes up one fifteenth of the total area of Tibet.
It belongs to typical South Tibetan valley floor. The terrain reduces from the west to east with an average altitude of 3700 meters above the sea level. Yarlung Zangbo River is the “mother river” for Tibetan people. It flows though 7 towns from the west to the east, such as Nangarze County, Gongga, Zalang County, Nedong County, Sangri County, Ceftriaxone and Gaca. The flowing passage is 424 kilometers.
Snow, Glacier and Rivers in Shannan
There are many Snow Mountains and glaciers in Shannan prefecture, of which more than 10 are of an altitude of over 6000 meters. 5 of them are open to the outside, locates in Cuona, Lho-brag, Nangarze. The average altitude of the three is about 7000 meters high; the highest is 7554 meters. In addition, glaciers of Yalla Snow Mountain and Wardegong Snow Mountain do not melt throughout the years, like huge palace and silver sword. They are good places for climbing, exploring, scientific researching and sight-seeing. The largest river in Shannan is the midstream of Yarlung Zangbo River. It flows though 7 towns from the west to the east, such as Nangarze County, Gongga, Zalang County, Nedong County, Sangri County, Ceftriaxone and Gaca. It covers 302 square kilometers in Shannan, the widest point reaches 7 kilometers. The total number of rivers is 41 and there are more than 10 lakes.
The weather in Shannan belongs to semi-arid and sub-humid plateau monsoon climate of temperate zone, where four seasons are not distinct. The winter is long and the summer is very short. The air is thin and dry and the relative air humidity is small. It gets a lot of sunlight and short-time frostless season. Annual precipitation is unevenly distributed and annual mean velocity of wind is 2.7 meters per second the temperature between day and night is small. Drought, snowstorm, hailstorm and windstorm are frequently happened natural calamities.