[G-04] Geoscience education from elementary school to university students

[G04-P03] Development of models for observing the topography of ocean floor and land mede with 3D printers

*Ryoya Sato¹, Atsushi Nozaki², Tatsuro Chiba⁴, Hikaru Yokoyama³ (1.Keio University, 2.Hiratsuka City Museum, 3.Hokusho University, 4.Asia Air Survey Co., Ltd.)

Keywords:disaster preparedness, 3D printing, terrain models, education, Children's Summer School on Seismology, Volcanology Geology, tool

The 22nd Children's Summer School on Seismology, Volcanology Geology was held in the vicinity of Hiratsuka City, Kanagawa Prefecture, with the theme of "100 Years Since Great Kanto Earthquake in 1923 ," exploring the relationship between the sea and earthquakes in Shonan. A newly developed 3D terrain model was used as an experimental teaching aid, utilized in interactive workshops where children solve the mysteries of the earth and presented their findings. During the summer school, two mysteries were presented: the relationship between Shonan's terrain and the sea, and the future lifestyle of Shonan. This teaching material was primarily developed as a tool to solve these mysteries. Digital fabrication technology was used to create a 3D model combining underwater and above-ground terrain. Data on underwater terrain was obtained from the Japan Hydrographic Association and converted into STL data. The scale of the model was adjusted and printed using a 3D printer. During experiments, the terrain model was submerged underwater, and participants observed the underwater terrain while removing water with a syringe. Participants marveled at the appearance of underwater terrain and contemplated the impact of Sagami Bay's terrain on fisheries resources. This teaching material serves as an effective means to demonstrate the continuity between underwater and above-ground terrain, with potential future applications in visualizing tsunami disasters. However, challenges such as the scale of the model remain.