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Material Cycle Science Lab (Material Cycle Observation Section / Air-Sea Exchange Section)
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A lab that uses observations to investigate how greenhouse gases circulate at the Earth's surface.
AboutAbout the lab
Unraveling greenhouse gas cycles through observation and modeling.
The lab studies how greenhouse gases such as carbon dioxide and methane circulate at the Earth's surface.
It conducts atmospheric observations using aircraft, ships, balloons, and ground stations in the Arctic and Antarctic, along with data analysis and numerical modeling.
The faculty members belong to the Department of Space and Earth Geophysics in the Faculty of Science and the Department of Geophysics in the Graduate School of Science, and are also involved in educating undergraduate and graduate students.
Key terms
- Greenhouse gases
- Gases in the atmosphere that affect the Earth's climate, such as carbon dioxide and methane
- Stratosphere
- The layer of the atmosphere above the layer closest to the ground. The lab makes observations there using balloons
- Numerical model
- A computer program that reproduces the movement of gases and other processes in the atmosphere through calculation. It is used in combination with observational data
NewsLab news
Joint research result on the rapid increase in methane caused by rising emissions in low-latitude Asia
Joint research result from observations of methane isotope ratios in the atmosphere and modeling
ResearchResearch themes
The lab aims to clarify how greenhouse gases in the atmosphere circulate at the Earth's surface. It investigates carbon dioxide, methane, nitrous oxide, and sulfur hexafluoride, as well as carbon monoxide and oxygen, through both observations and modeling.
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MembersFaculty
The members of the Material Cycle Science Lab consist of faculty members, commissioned professors, visiting researchers, doctoral, master's, and undergraduate students, secretaries, technical assistants, and technical support staff.As of 2026
- ProfessorShinji Morimoto
- ProfessorTaku Umezawa
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: “Sunset NOAA South Pole Atmospheric Research Observatory” Ian Crocker/NOAA / Public domain (cropped)
- Studying gas circulation through observations and models: “Airstar Aerospace Stratospheric balloons” Mimifromgalaxy / CC BY-SA 4.0 (cropped)
- Related lab (Meteorology and Atmospheric Dynamics Lab): “Cumulonimbus sunset panorama, Albury NSW Australia” Thennicke / CC BY-SA 4.0 (cropped)
- Related lab (Climate Physics Lab (Atmospheric Radiation Observation Section)): “Cumulus congestus cloud in sky” Piyushv99 / CC BY-SA 4.0 (cropped)
- Related lab (Kodama Lab): “Galaxy cluster Abell 1689 and distant galaxies ( )” Hubble ESA / CC BY 2.0 (cropped)
- Related lab (Noda Lab): “Chandra X-Ray Observatory (noirlab2427c)” NASA/CXC & J.Vaughan / CC BY 4.0 (cropped)
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