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Mass wasting in Tibet’s Sedongpu Gully
September 2 , 2024
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- The high frequency of mass wasting events in the Sedongpu Gully of the Tibetan Plateau since 2017 and the rapid warming of the area could affect India.
- This area rarely experienced temperatures beyond 0º C before 2012.
- But, the nearby weather stations at Bomi and Linzhi revealed that the annual temperature in this area increased at rates of 0.34º to 0.36º C during 1981-2018
- The Sedongpu Gully, in the catchment of the Sedongpu glacier and its valley, is 11 km long and covers 66.8 sq. km.
- It drains into the Yarlung Zangbo, or the Tsangpo River, near where it takes a sharp turn — called the Great Bend.
- While flowing around Mt. Namcha Barwa (altitude 7,782 metres) and Mt. Gyala Peri (7,294 metres) to create a gorge 505 km long and 6,009 metres deep.
- This is one of the deepest gorges on the earth.
- Mass wasting is the gravity-influenced movement of rock and soil down a slope.
- A gully is a landform created by erosion from running water, mass movement or both.
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