Xuelong 2 embarks on nation's 39th Antarctic expedition

The scientific venture will include research on the polar region's air composition, its water environment and deposits and ecosystem to address major scientific issues such as world climate change.

The expedition will also engage in environmental monitoring and astronomical observation along the areas of China's Zhongshan, Taishan and Kunlun stations.

The replenishing of supplies and staff rotation at China's Zhongshan Station and Great Wall Station will also be completed by this expedition.