Core Viewpoint - The "Jiaolong" manned submersible successfully completed over 10 manned deep dives in the Arctic, marking China's first manned deep dive in Arctic ice areas, showcasing the enhancement of China's deep-sea entry and exploration capabilities [1][3]. Group 1 - The "Jiaolong" submersible has undergone domestic upgrades and has officially entered polar operations after sea trials in the South China Sea [3]. - The expedition, part of the China Ocean 92 voyage, was conducted from July 15 to September 8, 2025, with the support of the icebreaker "Snow Dragon 2" [3]. - The operation included manned dives, ROV investigations, and CTD water sampling in the Arctic sea area [3]. Group 2 - Valuable scientific insights were gained, including significant differences in benthic organism density, biodiversity, and individual size across tens to hundreds of kilometers, likely related to seabed topography and water depth [5]. - The discovery of suspected pockmarks, dissolution holes, and carbonate rocks suggests historical cold seep eruptions, providing key information for studying methane migration pathways in the Arctic region [5]. - The detailed investigations by the manned submersible enhanced understanding of the distribution patterns of Arctic deep-sea biodiversity and the adaptive mechanisms of ecosystems [5].

在国家重点研发计划项目支持下，"蛟龙"号开展升级改造。本航次是"蛟龙"号完成国产化升级改造、继南海海试之后正式进入极区作业，创新 实现冰区双船（"雪龙2"号和"深海一号"）协同作业，实现了我国首次北极冰区载人深潜、首次有人/无人潜水器极区水下协同作业，显示我国 深海进入和深海探测能力持续增强，充分体现深海科技自立自强。 "蛟龙"号在极区高纬度冰区，验证了锂电池、视像系统、捷联惯导等国产化设备在极区复杂环境中的下潜作业能力，提升了潜水器在极区作业 的自主性和安全性，为我国开展极地环境调查与前沿科学研究提供了坚实的技术支撑。 复杂环境下开展精细综合调查 记者："蛟龙"号继在太平洋、印度洋和大西洋深潜之后首次在北冰洋下潜。北冰洋纬度高、气候寒冷和多冰，下潜有哪些特殊之处？ 许学伟：在北极，"蛟龙"号面临风、浪、流、冰、雾、寒等诸多复杂作业环境，很多时候是多重环境因素叠加，尤其是在海冰密集度高的冰区 作业，要选择合适的下潜作业点，综合考虑浮冰漂浮情况，定点上浮至水面，这些都与非极地海区深潜不同。 "蛟龙"号针对极地特殊环境开展了极区适应性改造，比如加装了多波束以探测极地海面浮冰，加装了二次抛载装置以控制潜水器上浮速度 ...

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]

原标题：中国成功实现首次载人深潜北极冰区下潜 在科学认知方面，一是通过对调查海域高清影像资料的AI识别，初步研究发现，北极部分海域底 栖生物密度、生物多样性、个体体型在几十至上百公里空间范围内显著差异，可能与海底地形地貌及水 深有关，获得的数据和资料为绘制极区海域的生物多样性谱图和开展生物多样性保护提供强有力支撑。 二是发现了疑似麻坑、溶蚀孔洞、碳酸盐岩、多个相近的大规模条带状贝类遗迹，表明调查区可能存在 历史性的冷泉喷发，为北极地区在地质历史时期的甲烷运移通道研究提供关键信息。三是通过载人潜水 器精细调查，将有效提升人类对北极深海生物多样性分布规律、生态系统适应性机制等方面的科学认 知。（记者 阮煜琳） 记者从自然资源部获悉，2025年7月15日，"深海一号"船携"蛟龙"号从青岛启航，执行中国大洋92 航次第一航段，于9月8日返回青岛。该航次期间，在"雪龙2"号船破冰保障下于北极海域完成了10余 次"蛟龙"号载人深潜、ROV调查和CTD采水等作业。 本航次是"蛟龙"号完成国产化升级改造，继南海海试之后正式进入极区作业，成功实现了中国首次 载人深潜北极冰区下潜、首次有人/无人双潜器极区水下协同作业，深海进入和 ...

Core Insights - The "Jiaolong" manned submersible successfully conducted China's first manned deep dive in the Arctic ice zone during the 92nd ocean expedition, marking a significant advancement in deep-sea exploration capabilities [1][2] - The expedition demonstrated the effectiveness of domestic upgrades to the "Jiaolong" submersible, enhancing its operational autonomy and safety in extreme polar conditions [2][3] Group 1: Mission Overview - The "Jiaolong" submersible, along with the "Shenhai Yihao," completed over 10 manned deep dives in the Arctic Ocean during the expedition, which lasted from July 15 to September 8 [2] - This mission was supported by national key research and development projects, showcasing China's growing capabilities in deep-sea exploration and technology independence [2][3] Group 2: Technical Enhancements - The "Jiaolong" underwent significant upgrades, including the installation of lithium batteries and advanced imaging systems, which were tested successfully in the Arctic's complex environment [2][3] - Modifications included the addition of multi-beam sonar for detecting ice and a secondary release device to control ascent speed, improving navigation and positioning accuracy [3] Group 3: Collaborative Operations - The mission marked the first instance of underwater collaborative operations between the "Jiaolong" and an ROV (remotely operated vehicle), enhancing sampling capabilities and operational efficiency [3] - The synergy between manned and unmanned systems is expected to improve future underwater operations and expand the scope of deep-sea research [3] Group 4: Scientific Discoveries - The expedition yielded high-quality biological samples, which are crucial for subsequent morphological identification and scientific research [4] - AI analysis of high-definition imagery revealed significant variations in benthic biodiversity and individual sizes across the surveyed Arctic regions, contributing to understanding the impacts of climate change on deep-sea ecosystems [5] - The discovery of potential historical cold spring eruptions and methane migration pathways provides valuable geological insights into the Arctic region [5]

Core Insights - The "Jiaolong" manned submersible has successfully completed China's first manned deep dive in the Arctic ice zone, marking a significant milestone in the country's deep-sea exploration capabilities [1][3] Group 1: Mission Overview - The mission was part of the China Ocean 92 voyage, which began on July 15, 2025, and returned to Qingdao on September 8, 2025 [3] - The "Jiaolong" submersible underwent domestic upgrades and has officially entered polar operations after trials in the South China Sea [3] - The mission involved underwater collaboration between the "Jiaolong" manned submersible and an ROV (remotely operated vehicle) in the Arctic waters [3] Group 2: Scientific Findings - High-resolution imagery analysis revealed significant differences in benthic organism density, biodiversity, and individual size across tens to hundreds of kilometers, likely related to seabed topography and water depth [5] - The discovery of suspected gas vents, dissolution holes, and carbonate rocks indicates potential historical cold seep activity, providing key information for studying methane migration pathways in the Arctic region [5] - Detailed investigations using the manned submersible enhanced understanding of the distribution patterns of Arctic deep-sea biodiversity and the adaptive mechanisms of ecosystems [5]

Core Insights - The article highlights China's successful completion of its 15th Arctic scientific expedition, marking the largest scale Arctic scientific investigation to date, featuring the first manned deep-sea dive in the Arctic ice region [1][3][15] Group 1: Expedition Overview - The expedition involved four vessels: "Snow Dragon 2," "Polar," "Deep Sea One," and "Explorer Three," and was characterized by the successful manned deep dive in the Arctic [1][3] - The "Deep Sea One" vessel, supported by "Snow Dragon 2," achieved China's first manned deep dive in the Arctic ice zone, indicating a new phase in China's deep-sea exploration capabilities [3][13] Group 2: Technical Challenges and Innovations - The expedition faced complex environmental challenges such as wind, waves, currents, ice, fog, and extreme cold, necessitating careful selection of dive points [5] - The "Deep Sea One" and "Snow Dragon 2" vessels operated in coordination, collecting critical data on oceanography, water chemistry, and ice conditions, significantly enhancing data comparability [17] - Innovations included real-time monitoring and the deployment of various unmanned observation devices, allowing for continuous data collection [21] Group 3: Equipment Modifications - The "Deep Sea One" and "Dragon" submersible underwent significant modifications to withstand the harsh Arctic conditions, including upgrades to hydraulic systems and communication equipment [22][24][26] - Specific adaptations were made to enhance cold resistance and ensure stable operation of critical components in extreme temperatures [24][27] - The communication and navigation systems were upgraded to maintain stable contact even in challenging conditions, improving recovery efficiency by over 30% [26]

Core Insights - The recent completion of China's 15th Arctic scientific expedition marks the largest Arctic scientific investigation to date, involving four vessels: "Xuelong 2," "Jidi," "Shenhai Yihao," and "Tansuo Sanhao" [1] - The expedition achieved a significant milestone with the successful manned deep-sea dive in the Arctic, indicating a new phase in China's deep-sea and polar exploration capabilities [1][3] Group 1 - The expedition not only achieved the "yes or no" breakthrough in manned deep-sea diving but also demonstrated strong capabilities in terms of quality and innovation, establishing a new model for the integration of polar and deep-sea exploration [3] - The collaboration between the two vessels for synchronized observation was a standout feature, enhancing data comparability and filling critical observational gaps in the Arctic's high-latitude regions [3] - The deployment of various unmanned observation devices in the high-latitude ice zone allowed for 24/7 monitoring, significantly increasing the expedition's analytical capabilities [3] Group 2 - The deep-sea equipment underwent modifications to withstand the extreme Arctic conditions, ensuring safe operations for "Jiaolong" and "Shenhai Yihao" [4][5] - Specific upgrades included cold resistance enhancements for the "Jiaolong," ensuring stable operation of hydraulic systems, titanium alloy components, and lithium batteries in extreme cold [5] - Communication and navigation equipment on "Shenhai Yihao" were upgraded to maintain stable contact with "Jiaolong," improving recovery efficiency by over 30% through a proactive approach [5]

8月4日中午，已经在北冰洋开展科考多日的"雪龙2"号结束阶段性作业，离开海冰密集度非常高的海 域，与从国内来到北冰洋冰区的"深海一号"汇合。 8月5日凌晨，两船汇合。"雪龙2"号开始为"深海一号"冰区航行引航，前往选定的"蛟龙"号首潜海域。 从7月底开始，"雪龙2"号上的中国第15次北冰洋科学考察队领队张北辰、首席科学家林龙山和船长张旭 德等人，便每天与"深海一号"上的中国第15次北冰洋科学考察队副领队许学伟进行电话会商，沟通两船 船位，分析冰情、海况，制定两船汇合计划和现场保障方案。 "与独立破冰航行相比，'雪龙2'号引航破冰需要时刻关注两船航速和两船间距的变化，同时还要随时研 判冰区环境和能见度条件，随时调整航速。""雪龙2"号船长张旭德说。 "深海一号"抗冰能力较低，船舶吃水较小，球鼻艏、吊舱沉深比较小，冰区航行的操纵能力大受影响， 并易出现船体结构受损风险。 0:00 中国第15次北冰洋科学考察近日完成全部科考作业，其中"深海一号"搭载"蛟龙"号载人潜水器在北极冰 区成功实现首潜。没有破冰能力的"深海一号"如何在北极冰区航行？"蛟龙"号冰区下潜安全如何保障？ 新华社记者对"雪龙2"号极地科考破冰船如何 ...

Core Insights - The successful completion of China's 15th Arctic scientific expedition marks a significant achievement in enhancing the country's understanding of the rapidly changing Arctic environment and its implications for global climate change [1][3][5] Group 1: Expedition Overview - The expedition involved the "Snow Dragon 2," "Polar," "Deep Sea One," and "Explorer Three" vessels, making it China's largest Arctic scientific investigation to date [5] - The "Deep Sea One" vessel successfully conducted China's first manned deep dive in the Arctic ice zone using the "Jiaolong" manned submersible [5] Group 2: Scientific Contributions - The expedition achieved important progress in multi-disciplinary investigations and collaborative observations in the Arctic, enhancing the capability for synchronous monitoring of the Arctic Ocean [3] - The research revealed significant variations in benthic organism density, biodiversity, and individual size across spatial ranges of tens to hundreds of kilometers, providing insights into the spatial distribution patterns of polar deep-sea organisms and the impact of climate change on deep-sea ecosystems [5]