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Miyakawa Lab
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A lab that reproduces, understands, and predicts huge clusters of tropical clouds using cloud-resolving models.
AboutAbout the lab
Using every tool available to explore the mysteries of weather and climate.
Miyakawa Lab studies phenomena such as the Madden-Julian Oscillation (MJO), a huge cluster of clouds that forms in the tropics.
The lab uses NICAM, a global cloud-resolving model that can calculate clouds across the entire Earth in fine detail, and NICOCO, which couples NICAM with an ocean model.
It also combines the MIROC climate model, satellite data, in-situ observational data, and theoretical models.
The lab aims to reproduce, understand, and predict these phenomena.
Key terms
- Madden-Julian Oscillation
- A phenomenon in which a huge cluster of clouds that develops in the tropics moves eastward from the Indian Ocean to the Pacific Ocean over a period of several tens of days.
- Global cloud-resolving model
- An atmospheric simulation that divides the entire Earth into a fine grid and directly calculates the motion of individual clouds.
- Equatorial waves
- Large atmospheric waves that propagate east and west along the equator.
ResearchResearch themes
The lab studies the properties and roles of the Madden-Julian Oscillation, a huge cluster of tropical clouds, as well as organized convection and equatorial waves. Using every tool available, including numerical models, satellite data, observational data, and theoretical models, it aims to reproduce, understand, and predict these phenomena.
*Illustrative imageMadden-Julian Oscillation
The lab studies the Madden-Julian Oscillation (MJO), a huge cluster of tropical clouds, using NICAM, a global cloud-resolving model, and NICOCO, which couples NICAM with an ocean model.
*Illustrative imageOrganized Convection and Equatorial Waves
The lab investigates the properties of organized convective activity and equatorial waves, including interactions between phenomena of different scales, atmosphere-ocean interactions, and tropics-midlatitude interactions. It also focuses on their role in the global circulation of heat.
*Illustrative imageNICAM in Python
The lab is developing pyNICAM-DC, a version of the NICAM dynamical core built with Python and JAX.
MembersFaculty
The members of Miyakawa Lab consist of faculty, project researchers, and doctoral and master's students.As of 2026
- Associate ProfessorTomoki MiyakawaPublications ↗
VoicesStudent voices
Compiled from answers by students who were in the lab. Ratings and reviews reflect individual students' experiences, not the lab's official views.
Students who take part in an interview may receive a thank-you gift worth ¥1,000, regardless of what they say.
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RelatedLabs similar to Miyakawa Lab
Miura LabFaculty of Science, Department of Earth and Planetary PhysicsWeather and climate phenomena related to clouds
Tozuka LabFaculty of Science, Department of Earth and Planetary PhysicsClimate variability phenomena in the tropics to mid-latitude…
Masumoto LabFaculty of Science, Department of Earth and Planetary PhysicsOcean variability and climate variability involving the ocea…
Sato LabFaculty of Science, Department of Earth and Planetary PhysicsTheoretical study of atmospheric phenomena using equations o…The information on this page is compiled by the LabLog team from the lab's public information and interviews. For corrections or removal requests, please contact LabLog, not the lab.
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: “Cumulus congestus bei Limburg” GerritR / CC BY-SA 4.0 (cropped)
- Madden-Julian Oscillation: “Clouds over Lombok Strait, Gili Islands, West Nusa Tenggara, Indonesia” Vyacheslav Argenberg / CC BY 4.0 (cropped)
- Organized Convection and Equatorial Waves: “ITCZ Jul 30 2010 GOES-13” NOAA Environmental Visualization Lab / Public domain (cropped)
- NICAM in Python: “IcosaSplit5” R. J. Mathar / CC BY-SA 3.0 (cropped)
- Related lab (Miura Lab): “Tropical Cyclone Robyn” NASA image by Jeff Schmaltz / Public domain (cropped)
- Related lab (Tozuka Lab): “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)
- 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)
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