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Disaster Climate Lab
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A lab that uses observations and predictions to understand extreme weather.
AboutAbout the lab
Understanding extreme weather through observation and prediction.
Building on meteorology, the Disaster Climate Lab aims to clarify how extreme weather and abnormal weather conditions arise and how predictable they are, as well as climate change and its mechanisms, in relation to changes in atmospheric composition and variability in atmospheric and oceanic circulation.
The lab carries out its research through numerical experiments with general circulation models and regional weather models, and through analysis of long-term meteorological and oceanic observation data and operational ensemble numerical weather prediction data.
The lab is a cooperating research group of the Department of Earth and Planetary Sciences in the Graduate School of Science, and belongs to the Atmospheric Science division.
Key terms
- Predictability
- How far into the future weather or climate can be predicted
- Data assimilation
- A method of incorporating observational data into a numerical model to improve predictions
- Ensemble
- A method of running many forecasts or calculations with slightly varied conditions and comparing them to assess how reliable the results are
- Explosive cyclone (bomb cyclone)
- A cyclone that develops rapidly, with its central pressure dropping sharply in a short time
ResearchResearch themes
The lab studies the processes behind extreme and abnormal weather, their predictability, and climate change and its mechanisms, using numerical experiments with atmospheric models and data analysis.
*Illustrative imageExtreme Weather and Climate Mechanisms
The main research topics are the processes by which extreme and abnormal weather arise from variability in the general circulation of the atmosphere and their predictability, coupled variability between the stratosphere and troposphere and between the tropics and the mid-to-high latitudes, the effects of changes in atmospheric composition on climate and disasters, and the development of climate models and data assimilation methods.
*Illustrative imageExtratropical Cyclones and Explosive Cyclones
The lab investigates why the activity of explosive cyclones (bomb cyclones) in the North Pacific in winter increased abruptly in the late 1980s, and the mechanism by which extratropical cyclone activity peaks in early spring over East Asia.
*Illustrative imageEnsemble Data Assimilation Methods
The lab studies a method for blending large-scale information in a flow-dependent way in ensemble data assimilation with regional models, and the application of Newton's method to the maximum likelihood ensemble filter.
MembersFaculty
- ProfessorTakeshi Enomoto
- Associate ProfessorAkira Kuwano-Kuwano-Yoshida
- Assistant ProfessorTakao Iguchi
- Assistant ProfessorSaori Nakashita
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: “Northwest Pacific cyclone Z” AHI image captured by the Japan Meteorological Agency’s Himawari-8 satellite / Public domain (cropped)
- Extreme Weather and Climate Mechanisms: “Sea Surface Temperature Anomaly of the Global Ocean at end of June 2026 (P- )” Copernicus Marine Service Data, EK - GD DEFIS, EC - DG DEFIS, SPACETEC PARTNERS, CE - DG DEFIS / CC BY 4.0 (cropped)
- Extratropical Cyclones and Explosive Cyclones: “Northwest Pacific cyclone Z” AHI image captured by the Japan Meteorological Agency’s Himawari-8 satellite / Public domain (cropped)
- Ensemble Data Assimilation Methods: “Contour Boxplots Weather ensemble” NOAA this is a public domain visualization. See: http://www.weather.gov/disclaimer / Public domain (cropped)
- Related lab (宇宙測地研究領域): “GNSS reference station, White Park Bay” Rorosyfingers / CC BY-SA 4.0 (cropped)
- Related lab (暴風雨・
極端気象研究領域): “Sunrise on Typhoon Hinnamnor’s Eye (CIRA )” Himawari imagery: CSU/CIRA & JMA/JAXA / Public domain (cropped) - Related lab (傾斜地保全研究分野): “Landslide mitigation at side of Shrine in Kinryu, Saga” Pekachu / CC BY-SA 4.0 (cropped)
- Related lab (強
震動研究分野): “2004 Chuetsu earthquake Damaged building, Nagaoka 02” Naoki Sato / CC BY-SA 2.0 (cropped)
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