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Sekine Lab
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The lab clarifies how river landforms are created and how urban flooding occurs.

AboutAbout the lab
Predicting the water of rivers and cities.
The Sekine Lab focuses its research on two areas: mobile-bed hydraulics and urban flooding.
Through experiments and numerical prediction, the lab clarifies how river landforms are created as sand and gravel on the riverbed move.
The other pillar is predicting flooding in the above-ground and underground spaces of large cities and evaluating flood risk.
The lab aims to apply this to guiding evacuation for people living in cities and to building cities resilient to heavy rain.
Key terms
- Mobile bed
- A riverbed whose sand and gravel are moved by the flow of water. The flow and the shape of the riverbed influence each other
- River channel
- The path along which river water flows. Its shape changes with the flow and the movement of sand and gravel
- Numerical prediction
- Estimating how a phenomenon will develop by expressing physical laws as equations and solving them on a computer
NewsLab news
View More ↗ResearchResearch themes
The Sekine Lab pursues research on two pillars: mobile-bed hydraulics, which examines how river landforms are shaped as sand and gravel on the riverbed move, and the prediction of flooding in large cities. By combining experiments and numerical analysis, the lab aims to improve prediction techniques.
*Illustrative imageSelf-formation of river channels and prediction of landform change
From the standpoint of mobile-bed hydraulics, the lab clarifies the mechanism by which river flow forms the shape of its own channel. By combining hydraulic experiments on flowing sand and gravel with numerical prediction, it develops techniques for predicting landform change that make river channel restoration possible.
*Illustrative imageUrban flood prediction and risk assessment
The lab predicts flooding in the above-ground and underground spaces of large cities and evaluates the associated risk. It uses numerical prediction to study how flooding spreads through large underground spaces, and applies the results to designing systems for guiding the evacuation of users and to building cities resilient to heavy rain.
MembersFaculty
The members of the Sekine Lab are faculty, master's students, and undergraduate students.As of 2026
- ProfessorMasato Sekine
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “20081207 Kurobe River Alluvial Fan” Beh / CC BY-SA 3.0 (cropped)
- Self-formation of river channels and prediction of landform change: “Braided Stream FairbanksTananaRiver” Chris 73 / Public domain (cropped)
- Urban flood prediction and risk assessment: “Cenote Interior” edenpictures / CC BY 2.0 (cropped)
- Related lab (Komine Lab): “Polygonal cracks in drought-dried soil near La Guardia, Margarita Island, Venezuela” Wilfredor / CC0 (cropped)
- Related lab (Mikami Lab): “Portland Head Light during Storm Surge Activity” Cfwphotography / CC BY-SA 4.0 (cropped)
- Related lab (Sasaki Lab): “Aerial view of Autobahnkreuz Köln-Nord” El Grafo / CC BY-SA 3.0 (cropped)
- Related lab (Morimoto Lab): “Tochigi Utsunomiya Haga LRT Utsunomiya Sta” Makochan12.9 / CC BY-SA 4.0 (cropped)
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