Core Points - The article discusses the rapid development of sea ice in the Bohai Sea, with the ice area reaching 12,953 square kilometers, covering over 40% of the Liaodong Bay surface [2] - The "Polar" icebreaker, a new generation vessel designed and built entirely by China, has commenced comprehensive sea ice investigation in the core ice area of Liaodong Bay [5] - The investigation team, composed of members from 10 domestic institutions, is utilizing advanced technologies for data collection, which will support port navigation safety and scientific research [5] - The "Polar" will continue its comprehensive investigation tasks in the Bohai Sea and Yellow Sea, contributing critical data for sea ice scientific research and enhancing disaster prevention capabilities [7] Group 1 - The sea ice area in the Bohai Sea has reached 12,953 square kilometers, with over 40% of the Liaodong Bay surface covered by floating ice [2] - The "Polar" icebreaker has PC6 icebreaking capability, allowing it to navigate through first-year ice up to 1 meter thick [5] - The investigation team is employing various advanced technologies, including radar and AI analysis, to conduct a comprehensive sea ice survey [5] Group 2 - The "Polar" will perform a full-cycle investigation of sea ice, meteorological, hydrological, and ecological factors in the Bohai Sea and Yellow Sea [7] - The data collected will enhance China's capabilities in disaster prevention and mitigation related to sea ice [7]