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Environmental Fluid Systems Lab
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A lab that studies the environment through fluid engineering, using the atmosphere and ocean as its field sites.

AboutAbout the lab
Environmental fluid engineering with the atmosphere and ocean as its field
The Environmental Fluid Systems Lab studies a wide range of phenomena in the atmosphere and ocean using laboratory experiments, field observations, and numerical simulations.
The lab works to clarify processes near the sea surface that govern the exchange of momentum and CO2 between the atmosphere and the ocean.
It investigates the causes of phenomena that harm coastal ecosystems, such as red tides and hypoxic water masses, with the aim of designing countermeasure technologies.
The lab also develops ocean condition forecasting systems that assess how the coastal marine environment will change in the near future.
Key terms
- Blue carbon
- CO2 fixation by marine ecosystems. The lab aims to clarify its actual state in coastal waters.
- Hypoxic water mass
- A body of seawater with low oxygen levels. Along with red tides, it is one of the phenomena that harm coastal ecosystems.
- Ocean condition forecasting
- Assessing how the coastal marine environment will change in the near future. It is regarded as important information for fisheries.
NewsLab news
A Saga Prefecture website providing ocean condition information, based on ocean condition forecast data for the Ariake Sea and Yatsushiro Sea, has been completed
Ocean condition calculation results for the waters off the Goto Islands in Nagasaki Prefecture have been visualized, and information provision has begun
Ocean condition forecast results for the Ariake Sea and Yatsushiro Sea will be provided on Fukuoka Prefecture's "Umieru Fukuoka" site
ResearchResearch themes
The lab studies a wide range of phenomena in the atmosphere and ocean using methods such as laboratory experiments, field observations, and numerical simulations. Its topics include the mechanisms of CO2 and other exchange across the sea surface, the causes of coastal red tides and hypoxic water masses, and assessment of the future coastal marine environment.
*Illustrative imageMechanisms of CO2 exchange between the atmosphere and ocean
From a fluid engineering perspective, the lab uses experiments, observations, and numerical simulations to investigate the mechanisms by which the ocean absorbs and sequesters CO2 released into the atmosphere. In coastal waters, it also aims to clarify the actual state of CO2 fixation by marine ecosystems (blue carbon).
*Illustrative imageResearch on coastal red tides and hypoxic water masses
Using field observations and a numerical ecosystem model based on the FVCOM numerical model, the lab studies the causes of, and countermeasures against, red tides and hypoxic water masses that occur in coastal waters. It is also developing technology to predict their occurrence in advance.
*Illustrative imageOcean condition forecasting for smart fisheries
Forecast information on how ocean conditions will change is important for fisheries. In collaboration with partner organizations, the lab is developing next-generation smart coastal fishery technology, and it is in charge of developing UCHI, a high-resolution ocean condition forecasting model that accurately predicts conditions in coastal waters with complex topography.
MembersFaculty
The members of the Environmental Fluid Systems Lab consist of faculty and secretaries.
- ProfessorYuji Sugihara
- Assistant ProfessorSoichi Yamaguchi
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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: “Drilling Rig Ocean Nomad and Natal Wreck Buoy - geograph.org.uk - 5100328” David Dixon / CC BY-SA 2.0 (cropped)
- Mechanisms of CO2 exchange between the atmosphere and ocean: “Anton Dohrn am Liegeplatz in Bremerhaven” Manfred Stein / CC BY-SA 3.0 de (cropped)
- Research on coastal red tides and hypoxic water masses: “Red tide_2017” melvil / CC BY-SA 4.0 (cropped)
- Ocean condition forecasting for smart fisheries: “Resolute in Fishing Boat Harbour” Sam Wilson (taken with Sony RX100 mk.V) / CC BY-SA 4.0 (cropped)
- Related lab (Computational Materials Science Lab): “Formaldehyde Molecular Orbitals” ChiralJon / CC BY 2.0 (cropped)
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- Related lab (Urban Environmental Science Lab): “Skyline Tower LIC 2020 jeh” Jim.henderson / CC BY-SA 4.0 (cropped)
- Related lab (Thermal Energy Conversion Systems Lab): “Outunit of heat pump” No machine-readable author provided. Ppntori assumed (based on copyright claims). / Public domain (cropped)
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