(L-R) Scientists Yang Tao, Li Qian, Li Lanhai, Huang Farong and Liu Yang conduct a field research on snow cover in central section of Tianshan Mountains in northwest China's Xinjiang Uygur Autonomous Region, Jan. 24, 2018. The research was hosted by Xinjiang Institute of Ecology and Geopgraphy of Chinese Academy of Sciences. (Xinhua/Jin Liwang)