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Tozuka Lab
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A lab that explores the mechanisms of climate variability such as El Niño through the physics of the ocean.
AboutAbout the lab
Understanding global climate variability through the ocean.
Tozuka Lab studies climate variability phenomena that occur from the tropics to the mid-latitudes, as well as the interactions between the atmosphere and the ocean.
Climate variability phenomena, typified by El Niño, cause extreme weather in many parts of the world.
On timescales longer than a few months, the ocean plays a major role because it stores heat, so the lab investigates these phenomena from the perspective of physical oceanography.
The lab also carries out fundamental research aimed at accurately predicting climate variability phenomena in advance.
Key terms
- Air-sea interaction
- Air-sea interaction: the process in which the atmosphere and the ocean influence each other across the sea surface, amplifying variability
- El Niño
- El Niño: a phenomenon in which sea surface temperatures in the equatorial Pacific stay higher than normal for an extended period, affecting weather in many regions
- Upwelling
- Upwelling: the rising of cold water from deep in the ocean to near the sea surface, driven by factors such as wind
NewsLab news
Co-authored paper on phytoplankton in the eastern Arabian Sea accepted
Student wins Outstanding Student Presentation Award at the JpGU-AGU Joint Meeting
Co-authored paper presenting conditions under which the Kuroshio large meander persists for a long time accepted
Co-authored paper on Ekman theory applicable even in regions with many mesoscale eddies accepted
Co-authored paper on sea surface salinity variability in the eastern South Indian Ocean accepted
ResearchResearch themes
Climate variability phenomena, typified by El Niño, cause extreme weather in many parts of the world. From the perspective of physical oceanography, the lab studies climate variability phenomena that occur from the tropics to the mid-latitudes, and the air-sea interactions that contribute to their growth.
*Illustrative imageMechanisms of climate variability phenomena
The lab works on elucidating the mechanisms of large-scale climate variability phenomena such as El Niño and the Indian Ocean Dipole, and on studying their predictability.
*Illustrative imageCoastal Niño phenomena
The lab focuses on coastal Niño phenomena, working to elucidate the mechanisms by which they develop and to study their predictability.
*Illustrative imageVariability of upwelling domes
The lab investigates seasonal and interannual variations of large-scale upwelling domes, such as the Mindanao Dome and the Seychelles Dome.
*Illustrative imageOcean circulation in the Indian Ocean and other regions
The lab studies the ocean circulation of the Indian Ocean, the South China Sea, and the Indonesian Archipelago, as well as its variability. Targets include the Agulhas Current and the Indonesian Throughflow.
MembersFaculty
- Associate ProfessorTomoki TozukaPublications ↗
VoicesStudent voices
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RelatedLabs similar to Tozuka Lab
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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.
- Top image: “El Niño Sea Surface Temperature Anomaly- January, 1997, through December, 1997 (SVS156 - sst 2d)” NASA's Scientific Visualization Studio - Greg Shirah, Antonio Busalacchi / Public domain (cropped)
- Mechanisms of climate variability phenomena: “El Niño Sea Surface Temperature and Height Anomaly on a Globe- January 1997 through December 1997 (SVS145)” NASA's Scientific Visualization Studio / Public domain (cropped)
- Coastal Niño phenomena: “Low clouds along the coast of Peru (MODIS )” Jeff Schmaltz, MODIS Land Rapid Response Team, NASA GSFC / Public domain (cropped)
- Variability of upwelling domes: “Upwelling image1” NOAA / Public domain (cropped)
- Ocean circulation in the Indian Ocean and other regions: “Ocean surface currents” NOAA / Public domain (cropped)
- Related lab (Miura Lab): “Tropical Cyclone Robyn” NASA image by Jeff Schmaltz / Public domain (cropped)
- Related lab (Masumoto Lab): “Timor Sea (MODIS )” MODIS Land Rapid Response Team, NASA GSFC / Public domain (cropped)
- Related lab (Sato Lab): “ISS-47 Earth’s limb during a starry night pass above the Indian Ocean” NASA / Public domain (cropped)
- Related lab (Ocean General Circulation Lab): “Global Sea Surface Currents and Temperature (hd video) ( )” NASA Goddard Space Flight Center from Greenbelt, MD, USA / Public domain (cropped)
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