Associate Professor Tatsuto Aoki, at the Faculty of Regional Development Studies, Institute of Human and Social Sciences, Kanazawa University, is part of a research team comprising the Japan Coast Guard, Kyushu University, WorldScan Project, Inc., Hiroshima University, and Kanazawa University. The team analyzed bathymetric data from the breakwater at Wajima Port and found that the extreme rainfall in Oku-Noto, which locates north part of Noto in Ishikawa Prefecture, in 2024 caused widespread sediment accumulation, resulting in a reduction of water depth by up to 1.8 meters.
A research group comprising Kyushu University, WorldScan Project Inc., Hiroshima University, and Kanazawa University — including Associate Professor Tatsuto Aoki — collected bathymetric data at Wajima Port in May 2024, prior to the extreme rainfall event (see reference). This dataset was later combined with bathymetric data obtained by the Hokuriku Regional Development Bureau following the torrential rainfall in Oku-Noto, in order to examine changes in the underwater topography at Wajima Port.
（Reference） /rd/150140/
Survey Area and Location Map
Changes in Water Depth at Wajima Port Before and After the 2024 Oku-Noto Extreme Rainfall
(Areas shaded in red indicate regions where the water depth has become shallower)
Water Depth Changes Offshore of the Kawarada River Mouth (Left: Before the extreme rainfall / Right: After the extreme rainfall)
Researcher's Information： Tatsuto Aoki
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