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Japanese Team Accurately Maps Challenger Deep in Mariana Trench

Just now September 18, 2026 1 min read 📰 Phys.org
📋 Key Takeaway

A Japanese research team has successfully mapped the Challenger Deep in the Mariana Trench using advanced echosounder technology. This study, involving institutions like the National Institute of Polar Research and the University of Tokyo, contributes to our understanding of ocean depths. While not directly related to Iran, advancements in oceanography can influence regional maritime security and environmental policies.

How deep is the deepest ocean—and how precisely can we actually measure it? A Japanese research team led by the National Institute of Polar Research (NIPR), SOKENDAI, the University of Tokyo and other Japanese institutions has mapped the Challenger Deep in the Mariana Trench using the EM124 multibeam echosounder aboard the research vessel Hakuho-maru. Their study is published in the journal Scientific Data.

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