央视网消息：2月18日，"蛟龙"号载人潜水器在西太平洋进行了2026马年第一潜。此次西太平洋科学考 察航次，由"深海一号"船搭载"蛟龙"号载人潜水器和无人遥控潜水器联合作业，标志着"一船双潜器"模 式进入业务化阶段。 ...

北京时间除夕，"蛟龙"号开展了其第419次下潜，也是本航次的第8次下潜，深度超过4000米。本航次是"蛟龙"号载人潜水器和无人遥控潜 水器常态化联合作业，标志着"一船双潜器"的模式进入业务化阶段。 央视网消息：自上世纪70年代我国开展大洋科学考察起，浩瀚无垠的大洋和奔腾汹涌的海浪就见证着中国在大洋科考领域取得的丰硕成 果。 新春佳节，在遥远的大洋上，依然有四支中国科考队在开展大洋考察。他们都取得了哪些新进展？一起去看一看。 在西太平洋，搭载"蛟龙"号载人潜水器的"深海一号"船正在执行西太平洋科学考察航次，将充分发挥"蛟龙"号的原位高精度探测优势，完 成热液区生态调查，并开展海洋地质、海洋化学、海洋生物、海洋物理等调查。 在西北太平洋，中国大洋91航次正在我国北京先驱公司多金属结核合同区开展资源环境调查，目前，已获取了合同区资源分布特征、合同 区冬季环境参数，为未来采矿装备试验环境影响评估工作提供支撑。 在西北印度洋，中国大洋94航次正在开展水体调查，重点关注人类活动和气候变化双重影响下海洋环境变化和缺氧现象驱动机制、生物多 样性演变和适应机制等科学问题，为该区域生物多样性养护提供有效的科学支撑。 目前，中国大 ...

Core Insights - The article highlights the advancements in China's aerospace and marine exploration capabilities, showcasing the successful flight of the J-20 stealth fighter and the collaborative underwater operations of the "Jiaolong" manned submersible and an unmanned submersible [1][5]. Aerospace Industry - The J-20, China's first fifth-generation stealth fighter, has high stealth, situational awareness, and maneuverability, significantly enhancing strike success rates and enabling integrated operations with other aerial platforms [1][5]. - The J-20's maiden flight occurred on January 11, 2011, marking a milestone in China's aviation history, reflecting two decades of development in the aerospace industry [3][5]. - The successful development of the J-20 positions China among a select group of nations capable of independently developing stealth fighter jets, representing a historic leap in its aviation capabilities [5]. Marine Exploration Industry - The 15th Arctic Ocean scientific expedition marked China's largest Arctic research mission to date, involving the "Xuelong 2," "Jidali," "Shenhai Yihao," and "Tansuo Sanhao" vessels [5][10]. - The "Jiaolong" manned submersible and an unmanned submersible conducted the world's first underwater collaborative operations in polar regions, enhancing data comparability and operational efficiency [6][8]. - The expedition collected a significant number of biological samples, totaling 183 items across 12 categories, and filled gaps in high-latitude oceanographic surveys [10][12]. - The research improved understanding of the formation mechanisms of "marine snow" in the Arctic, contributing to ecological studies related to sea ice retreat [14].

Core Insights - The 15th Arctic scientific expedition by China has successfully completed its mission, marking the first underwater collaboration between manned and unmanned submersibles in polar regions [1][2] Group 1: Manned and Unmanned Submersible Collaboration - The "Jiaolong" manned submersible and an unmanned remotely operated vehicle (ROV) conducted the world's first underwater collaborative operation in the Arctic during the 15th Arctic scientific expedition [2][4] - The collaboration aimed to enhance the operational capabilities of the "Jiaolong" submersible, which traditionally operated in a single-point mode, by addressing challenges in communication and positioning [4][6] - The first joint dive on August 14 tested underwater positioning and communication functions, while the second dive on August 15 involved collaborative operations, including video documentation of sampling activities [6][8] Group 2: Innovative Research Techniques - The expedition introduced a novel investigation model combining AI recognition and environmental DNA detection for precise surveys of seabed organisms [9][10] - Thousands of deep-sea biological images collected by the research team supported AI biological recognition, which was further validated by environmental DNA analysis [10][12] - The AI recognition technology revealed significant variations in benthic organism density, biodiversity, and individual morphology across extensive spatial ranges [12] Group 3: Comprehensive Data Collection - The 15th Arctic expedition, involving four vessels, is noted as the largest Arctic scientific investigation conducted by China to date, reaching as far north as latitude 77.5° [13][15] - The "Jiaolong" submersible collected a substantial number of rock, sediment, and seawater samples, including 183 biological samples across 12 categories [15][17] - The expedition also deployed multiple underwater imaging observation systems at different depths and time scales, yielding multi-faceted data on the ice edge zone [17][19]

Core Insights - The article highlights China's successful completion of its 15th Arctic scientific expedition, marking the largest scale of such an endeavor to date [1][19] - A significant achievement during this expedition was the first manned deep-sea dive in the Arctic ice zone using the "Jiaolong" submersible, indicating a new phase in China's deep-sea exploration capabilities [3][5][7] Group 1: Expedition Overview - The expedition involved four vessels: "Snow Dragon 2," "Polar," "Deep Sea One," and "Exploration Three," showcasing China's commitment to Arctic research [1][19] - The expedition reached a record latitude of 77.5° North, filling a gap in high-latitude oceanic research for China [21] Group 2: Technological Innovations - The "Jiaolong" submersible's successful dive represents a breakthrough in China's deep-sea exploration, transitioning from "full ocean depth" to "full ocean area" operations [7] - The expedition featured the world's first underwater collaborative operation between manned and unmanned submersibles in the Arctic region, enhancing operational capabilities [8][10] Group 3: Scientific Discoveries - The expedition collected a diverse range of biological samples, including 183 specimens across 12 categories, contributing valuable data to marine biology [21] - AI technology was utilized for real-time biological identification during the expedition, combined with environmental DNA analysis to enhance accuracy [14][16] - The study revealed significant variations in benthic organism density and biodiversity across different spatial scales in the Arctic [18] Group 4: Environmental Insights - The expedition improved understanding of the formation mechanisms of "marine snow," a phenomenon observed in deep-sea environments, which is crucial for studying the Arctic ecosystem's response to climate change [23]