【央视新闻】叩开北极冰封之海 和“奋斗者”号一起向深而行

Core Insights - The "Fighter" manned submersible has embarked on an international mission under the United Nations Decade of Ocean Science for Sustainable Development, focusing on deep-sea exploration [2] - In 2025, China's three manned submersibles completed a total of 321 dives, with the "Fighter" achieving the highest number at 118 dives, marking a significant advancement in China's deep-sea exploration capabilities [2][5] - The mission included a historic journey to the Arctic, where the "Fighter" successfully conducted dives in areas with over 80% ice coverage, making China the only country capable of continuous manned deep-sea dives in such conditions [2][3] Submersible Operations - The "Fighter" submersible reached a depth of 5,277 meters in the Arctic, collecting valuable rock, biological samples, and observational data crucial for studying climate change and geological processes [5] - The mission faced unprecedented challenges during the recovery of the submersible, requiring innovative strategies to adapt to the harsh conditions of the Arctic ice [3][4] - The team successfully adjusted their approach from "ship finding submersible" to "submersible finding ship," utilizing domestic ice-breaking radar and acoustic communication systems to ensure safe recovery [3][4] Technological Advancements - The "Fighter" has undergone significant technological upgrades, including a secondary release device that allows it to hover at a depth of 300 meters before safely ascending, enhancing its operational capabilities in extreme environments [5] - The advancements in China's manned submersible technology have positioned the country at the forefront of global deep-sea exploration, transitioning from deep-sea to all ocean types within just five years [5] Research Contributions - The exploration of the Gakkel Ridge, characterized by its slow expansion rate, provides critical insights into Earth's deep mantle and evolutionary history, with the "Fighter" being the first manned submersible to conduct research in this area [3][4] - The mission's success is expected to yield a wealth of samples that will be valuable for both domestic and international scientific communities, highlighting China's growing capabilities in deep-sea research [5][6]