Japan Launches First Arctic Research Vessel, Mirai II
The Japan Agency for Marine-Earth Science and Technology (JAMSTEC) has recently unveiled Japan’s inaugural Arctic research vessel, the Mirai II. This groundbreaking vessel marks a significant milestone in Japan’s exploration and research efforts in the Arctic region.
Construction and Specifications
Construction of the Mirai II commenced in 2021 at Japan Marine United Corporation’s shipyard. The vessel boasts impressive dimensions, measuring 128 meters in length, 23 meters in width, and with a draft of 8 meters. Weighing in at 13,000 tons, the Mirai II is designed to break through 1.2m of flat one-year ice at a speed of 3.0kt.
With a capacity to accommodate 97 individuals, including 34 crew members and 63 researchers, the Mirai II is equipped to support extended research missions in challenging Arctic conditions. The vessel is classified as Polar Class 4, enabling it to navigate year-round in waters characterized by thick first-year ice mixed with perennial ice.
Advanced Features
Equipped with cutting-edge navigation systems, the Mirai II is designed for safe and efficient operation in sea ice environments. Its dual fuel engine not only reduces environmental impact but also enhances fuel efficiency, aligning with sustainable practices in marine research.
Future Endeavors
Following its launch on March 19, 2025, the construction of the Mirai II will continue, with completion and delivery scheduled for autumn 2026. This state-of-the-art Arctic research vessel symbolizes JAMSTEC’s commitment to addressing environmental challenges and changes in the Arctic region.
As Japan’s first research icebreaker, the Mirai II will serve as an international research platform, focusing on meteorology, climate studies, atmospheric chemistry, and monitoring changes in oceanic, atmospheric, and sea ice conditions. Its deployment signifies a new chapter in Arctic exploration and scientific research.
Stay tuned for more updates on the Mirai II and its groundbreaking research missions in the Arctic region.

