Core Insights - The 15th Arctic Scientific Expedition Team of China successfully utilized the dual-mode AUV for comprehensive observations of the seabed morphology and underwater marine environment in the high-latitude Arctic region [1][2] Group 1: Technology and Equipment - The dual-mode AUV is a submersible robot capable of both underwater cruising and crawling along the ice bottom, developed under the national key R&D program during the 14th Five-Year Plan [1] - During the expedition, the dual-mode AUV completed 12 dives and conducted various tests, collecting hydrological and ecological data including conductivity, temperature, salinity, dissolved oxygen, chlorophyll, and ice bottom video [1] Group 2: Scientific Contributions - The dual-mode AUV provided significant equipment support for multiple national scientific projects, demonstrating excellent underwater observation capabilities and enhancing the practical application level of China's Arctic underwater robot equipment [2] - This expedition, involving the vessels "Xuelong 2," "Jidi," "Shenhai Yihao," and "Tansuo Sanhao," is noted as China's largest Arctic scientific expedition to date, with "Xuelong 2" successfully conducting seabed environment detection [2]