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Waseda-Kodaira Lab
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A lab that studies ocean waves and currents through observation and simulation.
AboutAbout the lab
Reading ocean waves and currents through observation and computation
The Waseda-Kodaira Lab studies ocean waves (wind waves) and ocean currents.
Its main methods are numerical simulation, observations at sea, and experiments in wave tanks.
The lab works on the properties of waves such as freak waves, the interaction between waves and sea ice, and the assessment of ocean energy.
In recent years, the lab has also been studying the polar ocean environment, including sea ice.
Key terms
- Wind waves
- Waves generated on the sea surface by wind. They also include swell that travels from far away.
- Freak waves
- A phenomenon in which a wave much larger than the surrounding waves suddenly appears. Also called rogue waves.
- Sea ice
- Ice formed by the freezing of seawater. It spreads across the seas of the Arctic and Antarctic.
NewsLab news
View More ↗ResearchResearch themes
With wind waves and ocean currents as its two pillars, the lab conducts research using numerical simulation, observations, and tank experiments. It has worked with other research institutions and companies on topics such as waves and sea ice in the Arctic Ocean, waves under typhoons, and power generation using wave energy.
*Illustrative imageInteraction Between Waves and Sea Ice
Together with the National Institute of Polar Research and other partners, the lab investigates how waves and sea ice affect each other at the sea ice edge. It aims to build models based on experiments in an ice tank and on observations using drones and other means.
*Illustrative imagePredicting Waves in the Arctic Ocean
In the Arctic Ocean in summer, when sea ice has decreased, waves are expected to form in areas where they previously did not. The lab observes the Arctic Ocean jointly with the National Institute of Polar Research and is advancing simulations to predict waves along Arctic sea routes.
*Illustrative imageWaves Under Typhoons and Explosive Cyclones
Together with Kyushu University, the lab has analyzed reanalysis data of past waves and run simulations in order to estimate more accurately the waves that occur under strong winds.
*Illustrative imageDemonstrating Wave Power Generation off Kozushima
In joint research with companies and other partners, the lab has provided wave observation data and run high-resolution wave prediction simulations for a wave power demonstration unit installed off Kozushima.
MembersFaculty
The members of the Waseda-Kodaira Lab are faculty members, secretaries, and doctoral and master's students.As of 2024
- ProfessorTakuji Waseda
- LecturerTsubasa KodairaPublications ↗
- Project Assistant ProfessorTakehiko NosePublications ↗
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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: “Wea00800,1” NOAA / Public domain (cropped)
- Interaction Between Waves and Sea Ice: “Pancake Ice” Josh Bongard / Public domain (cropped)
- Predicting Waves in the Arctic Ocean: “ARCSIX Analyzes Arctic Sea Ice Loss (153113 - photo lrg)” Gary Banziger (NASA Langley), Ralph Kahn (NASA GSFC) / Public domain (cropped)
- Waves Under Typhoons and Explosive Cyclones: “Super Typhoon Oscar SE of Japan near peak intensity (2268-432)” NOAA / Public domain (cropped)
- Demonstrating Wave Power Generation off Kozushima: “Pelamis bursts out of a wave” P123 / Public domain (cropped)
- Related lab (Houtani Lab): “UCL OTT” Danfone / CC BY-SA 3.0 (cropped)
- Related lab (Tokoro-Takaya Lab): “Froth flotation” Andreslan / Public domain (cropped)
- Related lab (Ocean Environment Systems Lab): “Posidonia oceanica meadow and school of Salema porgy - Exploration and observation - Calanque de Sormiou - June 2022” Karim saari / CC BY 4.0 (cropped)
- Related lab (Shibasaki Lab): “Aerial image of the Bremerhaven container terminal (view from the southeast)” Carsten Steger / CC BY-SA 4.0 (cropped)
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