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10 labs · 0 student voices
Faculties at Chiba University ›
Atsushi Higuchi, Professor
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Higuchi Lab specializes in hydrology and satellite climatology, and studies the role of water in the Earth's environment. It analyzes data from a variety of Earth observation satellites in combination, aiming to understand how the climate works, including the effects of human activity. Because some phenomena cannot be captured by satellites alone, the lab sometimes makes observations in the field and works with researchers in numerical simulation. Because long data records are essential for detecting climate change, the lab also puts effort into archiving and releasing data from geostationary meteorological satellites.
Koji Kajiwara, Lecturer
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The lab of Lecturer Kajiwara studies how to estimate vegetation biophysical variables over wide areas using observation data from optical sensors on satellites. For plants with large 3D structures, such as forests, the intensity of the observed reflected light changes in complex ways depending on the angles of the sun and the satellite and on the three-dimensional structure of the forest. The lab's research therefore centers on modeling the relationship between the 3D structure of trees and their reflectance characteristics, and linking that relationship to vegetation biophysical variables. The lab also uses laser scanning instruments to measure the three-dimensional structure of actual forests.
Shigenori Otsuka, Associate Professor
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The lab of Associate Professor Otsuka studies "precipitation nowcasting," which predicts rain in the very near future from weather radar and satellite observations. Nowcasting is a technique that analyzes observation data on the spot to predict conditions from several minutes to several hours ahead. The lab works on both numerical simulation using supercomputers and short-term prediction using deep learning. As extreme weather becomes more frequent, the lab aims to put its results into real-time operation as quickly as possible so that they can be useful in people's daily lives.
Hitoshi Irie, Professor
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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.
Naoko Saitoh, Associate Professor
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The Saitoh Lab analyzes satellite data to study global-scale atmospheric problems such as global warming and ozone depletion. The lab is responsible for developing methods to retrieve the concentrations of carbon dioxide and methane at different altitudes from observations by satellites such as GOSAT, a greenhouse gas monitoring satellite. Using satellite and other data, the lab analyzes how long-lived gases move through the atmosphere. By combining atmospheric observations with atmospheric transport models, the lab also studies the carbon cycle.
Wei Yang, Associate Professor
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The Yang Lab studies quantitative satellite remote sensing of Earth's biosphere and its applications to ecosystems. The lab targets both terrestrial vegetation and aquatic ecosystems, analyzing them by comparing and integrating the two. Satellite ecology is a field that builds on satellite technology to observe and understand how ecosystems function, from the regional scale to the entire globe. By combining field observations with satellite observations, the lab aims to capture photosynthesis and the carbon budget more accurately.
Shunji Kotsuki, Professor
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The Kotsuki-Okazaki Lab studies technologies for predicting weather and climate by combining Earth observation data with information science. Using numerical simulations on supercomputers and machine learning, the lab links observations and predictions through data assimilation, a statistical and mathematical technique. The lab is developing a global weather forecasting system that combines AI and data assimilation, and a system that uses generative AI to predict real-world scenes themselves. In weather control research under the Cabinet Office's Moonshot Goal, the lab is also working on research to reduce the damage caused by torrential rain.
Chiharu Hongo, Associate Professor
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The Hongo Lab studies agricultural remote sensing, using satellite images to examine the condition of farmland and crops. Just as a doctor diagnoses a person's health from medical checkup images, the lab uses satellite images to examine crop yield, nutritional status, soil type, and the occurrence of pests and diseases. The lab matches yield and quality data measured in the field with satellite images to build estimation equations, making it possible to estimate yield and quality without visiting the site. The lab also places importance on educating people involved in food production. With research and education as twin pillars, it works with partners in Japan and abroad.
Satoru Yoshida, Project Professor
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Project Professor Yoshida's lab studies weather phenomena that cause major damage to society, such as lightning discharge and linear rainbands. The lab develops its own instruments applying remote sensing technologies such as electromagnetic wave observation, and bases its research on observations made with those instruments. Project Professor Yoshida joined the Center for Environmental Remote Sensing in July 2026. The professor says the lab will pursue research that clarifies the mechanisms of lightning discharge and linear rainbands through instrument development and observation, as well as research on the use of observational data and its social implementation.
Yoshiya Touge, Associate Professor
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Associate Professor Touge's lab studies disasters caused by dryness, such as wildfires, and water resource management, drawing on knowledge from hydrology. In recent years, even Japan, with its humid climate, has seen large-scale wildfires under extreme dryness. The lab investigates, under the name "fire hydrology," both the environmental factors that make fires start and grow large, and the secondary disasters that follow fires, such as those caused by heavy rain and fallen trees. It advances understanding of these phenomena through field observation and numerical analysis, and aims to put the research to use in society by working together with diverse people such as government officials and citizens.
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