【新华社】我国“双模AUV”成功开展北冰洋冰底环境观测

Core Points - The 15th Arctic scientific expedition by China successfully utilized the dual-mode AUV for comprehensive observations of the Arctic Ocean's high-latitude seabed and underwater marine environment [2][3] - The dual-mode AUV, capable of underwater cruising and ice-bottom crawling, completed 12 dives and gathered hydrological-ecological data including conductivity, temperature, salinity, dissolved oxygen, chlorophyll, and ice-bottom video [2] - This expedition marks China's largest Arctic scientific investigation, involving four vessels, with the "Snow Dragon 2" successfully conducting seabed environment detection [3] Group 1 - The dual-mode AUV was developed under the national key research and development program during the 14th Five-Year Plan, focusing on the need for three-dimensional observation of Arctic sea ice and underwater marine environments [2] - The dual-mode AUV can operate at speeds of 2 to 3 knots in seawater and can crawl closely along the ice bottom, meeting diverse observational needs across various disciplines [2] - The expedition achieved China's first seabed morphology observation test in the 100% dense ice area of the Arctic Ocean, obtaining high-precision data on ice bottom morphology [2] Group 2 - The chief scientist of the expedition highlighted that the dual-mode AUV provided crucial equipment support for multiple national scientific projects, showcasing excellent underwater observation capabilities [3] - The expedition involved the "Snow Dragon 2," "Polar," "Deep Sea One," and "Explorer Three," marking a significant scale for China's Arctic scientific research [3] - The "Snow Dragon 2" departed from Shanghai on July 6 and returned on September 26, successfully conducting the seabed environment detection [3]