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Irie Lab
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The lab tracks changes in Earth's atmosphere using ground-based and satellite remote sensing.
AboutAbout the lab
Facing the climate crisis with cutting-edge observation
The Irie Lab studies variations in Earth's atmospheric environment using world-leading remote sensing technology.
Its goal is to produce reliable scientific knowledge, including predictions, that is essential for mitigating and adapting to the climate crisis.
The lab leads international ground-based remote sensing observation networks and conducts joint research with research institutions in Japan and abroad.
It focuses on phenomena that are hard to predict, such as air pollution from human activities, extreme weather such as linear precipitation bands, forest fires, lightning activity, and volcanic activity.
Key terms
- Remote sensing
- A technique that uses satellites or ground-based instruments to measure the atmosphere or land surface at a distance, without touching the target
- Aerosols
- Very small particles floating in the atmosphere, such as dust, smoke, and PM2.5. They block sunlight and also affect how clouds form
- Linear precipitation band
- A rain area in which successively generated cumulonimbus clouds line up like a line and bring heavy rain to the same place for a long time
NewsLab news
A doctoral student received the Outstanding Student Presentation Award at the Japan Geoscience Union Meeting 2026
A paper on the transport pathways of transboundary air pollution over the western Pacific was published in Geoscience Letters
A paper on simultaneous observation of CO2 and NO2 in the Tokyo metropolitan area was published in Atmospheric Measurement Techniques
A master's student received an Outstanding Presentation Award at the master's thesis presentation session
A paper on a method for correcting satellite-derived solar radiation data was published
ResearchResearch themes
The lab aims to derive reliable scientific knowledge by combining observation data, the "facts," with data science such as numerical simulation and machine learning. To do this, it works on acquiring and quality-controlling observation data, elucidating the mechanisms behind variations in the atmospheric environment, and proposing data science techniques.
*Illustrative imageA-SKY International Ground-Based Observation Network
This is one of the international ground-based remote sensing networks led by the Irie Lab. At sites in Japan and abroad, it makes simultaneous observations with multi-axis differential optical absorption spectroscopy (MAX-DOAS) and sky radiometers to observe various atmospheric components in the atmospheric boundary layer.
*Illustrative imageSKYNET International Ground-Based Observation Network
This is a ground-based network for comprehensive observation of aerosols, clouds, and radiation, led by Chiba University. The lab keeps running an automated system that covers everything from observation to data transfer, analysis, visualization, and release, so that the latest data are always available.
*Illustrative imageWater Vapor Observation for Linear Precipitation Bands
Predicting extreme weather such as linear precipitation bands requires accurate measurement of water vapor in the lower atmosphere. It is important to understand the strengths and limitations of observation methods such as visible light and microwaves and to make them complement one another, and the lab keeps a broad forum open for discussion toward this goal.
MembersFaculty
The members of the Irie Lab consist of faculty, emeritus professors and collaborating researchers, a visiting associate professor, a secretary, technical assistants, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorHitoshi Irie
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: “Air Pollution Chokes Northern India (NESDIS )” NOAA / Public domain (cropped)
- A-SKY International Ground-Based Observation Network: “Atmospheric measurements in far north” Heikki Junninen / CC BY 4.0 (cropped)
- SKYNET International Ground-Based Observation Network: “Portrait of Global Aerosols” William Putman, NASA/Goddard / Public domain (cropped)
- Water Vapor Observation for Linear Precipitation Bands: “Rømø - DMIs vejrradar” Hjart / CC BY-SA 4.0 (cropped)
- Related lab (Saitoh Lab): “Artifacts at Tsukuba Space Center Space Dome exhibition hall 9” Syced / CC0 (cropped)
- Related lab (Yang Lab): “Satellite image of Madagascar in September 2003” 作者不詳 / Public domain (cropped)
- Related lab (Higuchi Lab): “North America from low orbiting satellite Suomi NPP” NASA/NOAA/GSFC/Suomi NPP/VIIRS/Norman Kuring / Public domain (cropped)
- Related lab (Hongo Lab): “NASA-ISRO Radar Satellite Captures First Image of North Dakota Wetlands, Farmlands (PIA26615)” JPL / Public domain (cropped)
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