叩开北极冰封之海 和“奋斗者”号一起向深而行

Core Insights - The "Fendouzhe" manned submersible has embarked on an international mission under the United Nations Decade of Ocean Science for Sustainable Development, marking a significant advancement in China's deep-sea exploration capabilities [1] Group 1: Mission Achievements - In 2025, China's three manned submersibles completed a total of 321 dives, with "Fendouzhe" leading at 118 dives, achieving regular manned deep-sea operations at depths of 10,000 meters [1] - The "Fendouzhe" submersible successfully conducted 43 dives during its 98-day Arctic expedition, making China the only country capable of continuous manned deep-sea operations in areas with over 80% ice coverage [1][16] - The mission resulted in the collection of valuable geological samples, including basalt from the Gakkel Ridge, which is crucial for understanding Earth's evolutionary history [3][16] Group 2: Technological Innovations - The "Fendouzhe" submersible has undergone various technological upgrades, including a secondary release device that allows it to hover at a depth of 300 meters before safely ascending, facilitating deep-sea operations in extreme conditions [18] - The collaboration between the submersible and the icebreaker "Exploration III" established a new mobile ice diving model, enhancing operational efficiency in the Arctic [16] Group 3: Research Contributions - The mission provided critical data and samples that will support research on Arctic climate change, evolutionary mechanisms of life, and deep mantle activities [16] - The successful dives in the Gakkel Ridge area, previously unexplored by manned submersibles, have positioned China as a leader in deep-sea scientific research [13][20]