On 28 May 2018, scientists of Institute of Atmospheric Physics, Chinese Academy of Sciences arrived at Ny Alesund (78°55′N, 11°56′E）where the Chinese Arctic station “Yellow River” locates to start their one-year field observation. Their mission is to observe the vertical structure of atmospheric boundary layer over different underlying surfaces in key Arctic regions. (Image by IAP)

Ny Alesund Station (The red building is Yellow River Station of China) (Image by IAP)

Typical land-sea-snow-ice underlying surface. (Image by IAP)

Dr ZHOU Libo discusses set-up of radar with a colleague based in Ny Alesund. (Image by IAP)

A polar bear curiously poked around Yellow River Station of China on 30 May 2018. Warming Arctic and decreased sea ice has posed threat to the survival of polar bears. (Image by IAP)