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Sasaki Lab
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The lab explores safe and rich coastal environments, from Tokyo Bay to the seashores of developing countries.

AboutAbout the lab
Restoring a beautiful, safe, and rich sea.
Sasaki Lab studies coastal marine environments, focusing on coastal engineering and environmental hydraulics.
Its themes include blue carbon as a climate change measure, the prediction and restoration of enclosed bay environments, and the sustainable use of coastal areas in developing countries.
In addition to numerical simulation, field observation, laboratory experiments, and remote sensing, the lab also conducts social surveys such as interviews and questionnaires.
Research themes are decided together with each student, based on their interests and skills.
Key terms
- Blue carbon
- Carbon that is captured and stored in the sea through the activity of marine organisms such as seagrass, seaweed, and mangroves
- Enclosed bay
- A bay that extends deep into the land. Like Tokyo Bay, it has little water exchange with the outer sea
- Hypoxic water mass
- A mass of seawater in which the dissolved oxygen has become extremely low. It can cause marine life to die
NewsLab news
Paper on sediments and toxic gases in Shenzhen Bay published in Applied Geochemistry
Doctoral dissertation awarded the Dean of the Graduate School of Frontier Sciences Award
Paper on coral reef monitoring published in Marine Pollution Bulletin
Paper on predicting gas hazards in tunnels passing through coal seams released
A graduate's master's thesis received the FY2025 ADB-JSP Thesis Award
ResearchResearch themes
The lab mainly targets waters with little water exchange, such as coastal areas, enclosed bays, and lakes, and aims to create safe, rich, and attractive environments. It pursues both basic research built on numerical prediction and environmental monitoring, and interdisciplinary research aimed at solving local problems.
*Illustrative imagePutting blue carbon to use in society
The lab estimates the characteristics and effects of the carbon that seagrass, seaweed, and mangroves capture and store in the sea, and studies strategies for realizing blue carbon in society, such as creating seaweed beds.
*Illustrative imagePredicting the long-term environment of enclosed bays
Focusing on the hypoxic water masses that spread in summer in places such as Tokyo Bay, the lab predicts the long-term environment using field observation and an original numerical model that handles currents, waves, water quality, ecosystems, and bottom sediment together.
*Illustrative imageRestoring tidal flats and shallow waters
Using field surveys and numerical models, the lab examines measures to restore the tidal flats and shallow waters that have been greatly reduced by land reclamation and to bring back a healthy enclosed bay environment. It also develops ideas that combine disaster prevention with environmental restoration.
*Illustrative imageUsing the coasts of developing countries sustainably
Targeting the coasts of developing countries in Southeast and South Asia, the lab investigates the evaluation of mangrove restoration projects, the actual conditions of salt damage and inundation, and the views of local residents.
MembersFaculty
The members of Sasaki Lab consist of faculty, doctoral and master's students, and research students.As of 2026
- ProfessorJun SasakiPublications ↗
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: “Tokyo L7 lrg” Image courtesy Ron Beck, USGS Eros Data Center Satellite Systems Branch / Public domain (cropped)
- Putting blue carbon to use in society: “Sanc0209 - Flickr - NOAA Photo Library” Heather Dine. / Public domain (cropped)
- Predicting the long-term environment of enclosed bays: “Jubilee- -Bay-Alabama-crabs-flounders” Richard Scardamalia, Daphne, AL / Public domain (cropped)
- Restoring tidal flats and shallow waters: “Yatsu-Higata” Helion~jawiki at Japanese Wikipedia / CC BY-SA 3.0 (cropped)
- Using the coasts of developing countries sustainably: “Mangrove, Rakhine, Myanmar” no rights reserved / CC0 (cropped)
- Related lab (Coast and Coastal Environment Lab): “Utoma, Samani, Hokkaido 01” motoGP from Japan. / CC BY 2.1 jp (cropped)
- Related lab (Matsuba Lab): “Hasaki Beach, Ibaraki 08” Σ64 / CC BY 4.0 (cropped)
- Related lab (River and Watershed Environment Lab, Kawasaki Group): “Defense.gov photo essay 111016-M-ZN194-151” Cpl. Robert J. Maurer / Public domain (cropped)
- Related lab (Oki Lab): “Global Total Precipitable Water Vapor for May )” Atmospheric Infrared Sounder / Public domain (cropped)
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