China's 32nd Antarctic expedition team starts marine environmental assessment in Antarctic

A CTD rosette is lowered into water to measure the salinity, temperature, depth and concentration of particles from China's icebreaker Xuelong (Snow Dragon) in Antarctica, Dec. 29, 2015. China's 32nd Antarctic expedition team started its most expansive marine environmental assessment in waters around the Antarctic Peninsula on Tuesday. (Xinhua/Zhu Jichai)