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Ueda Lab
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The lab develops technology for seeing what lies underground without digging.
AboutAbout the lab
Seeing underground without digging
Ueda Lab studies geophysical exploration, a technology for learning what lies beneath the ground without digging.
Using physical phenomena such as electromagnetic fields, elastic waves, magnetism, and gravity, the lab obtains subsurface information non-destructively.
Centered on electrical and electromagnetic exploration methods based on electromagnetic phenomena, the lab works on calculations that predict the measured responses and on inverse analysis, which estimates the subsurface structure from observed data.
The lab places importance on balancing field surveys, the development of exploration systems, analytical theory, and numerical simulation by computer.
Key terms
- Geophysical exploration
- A technology that uses physical phenomena such as electromagnetic fields and elastic waves to estimate subsurface conditions without digging
- Forward modeling
- Assuming a subsurface structure, then calculating what response would be measured
- Inverse analysis
- Working backward from measured responses to estimate the subsurface structure that caused them
ResearchResearch themes
Ueda Lab studies subsurface imaging technology based on geophysical exploration, which is needed in areas such as resource exploration, the environment, disaster prevention, and underground infrastructure. Centered on electrical and electromagnetic methods, the lab covers a wide range, from forward modeling and inverse analysis to the development of exploration systems.
*Illustrative imageForward Modeling of Electrical and Electromagnetic Methods
The lab develops general-purpose programs that calculate the response of horizontally layered structures for land-based, marine, and airborne electromagnetic methods. It also investigates three-dimensional response simulation and the numerical methods needed for it.
*Illustrative imageInverse Problems, Inverse Analysis, and Optimization
The lab studies inverse analysis methods that estimate subsurface structure from measured data. In addition to analysis using regularization and various gradient methods, it works on inverse analysis and optimization using machine learning and deep learning.
*Illustrative imageDeveloping New Exploration Methods and Systems
The lab is developing an electromagnetic exploration system mounted on an unmanned ground vehicle, as well as a system for early warning of sediment-related disasters such as slope failures. It is also investigating equipment for high-frequency AC electrical exploration used in shallow environmental surveys, and a drone-based exploration system.
*Illustrative imageNumerical Simulation for Resource and Environmental Issues
The lab examines the applicability of electromagnetic exploration to monitoring the geological storage of carbon dioxide. It is also improving exploration systems for seafloor hydrothermal deposits, applying its methods to geothermal resource exploration, and analyzing soil contamination survey data with deep learning.
MembersFaculty
- ProfessorTakumi Ueda
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: “NesjavellirPowerPlant edit2” Gretar Ívarsson / Public domain (cropped)
- Forward Modeling of Electrical and Electromagnetic Methods: “Triassic Sedimentary Strata Somerset 1” Margaret W. Carruthers / CC BY 2.0 (cropped)
- Inverse Problems, Inverse Analysis, and Optimization: “Spider web and dew 7th Brigade Park Chermside L1010439” John Robert McPherson / CC BY-SA 4.0 (cropped)
- Developing New Exploration Methods and Systems: “Landslides in Himachal Pradesh” Sridhar Rao / CC BY-SA 4.0 (cropped)
- Numerical Simulation for Resource and Environmental Issues: “Bubbles in the Gelenberger Quelle Mofette - wide” Sten van Houwelingen / CC BY 4.0 (cropped)
- Related lab (Ouchi Lab): “Oil pump in Baku” Gulustan / CC BY-SA 3.0 (cropped)
- Related lab (Kawabe Lab): “Berkeley Pit & Continental Mine & Yankee Doodle Tailings Pond (Butte, Montana, USA)” James St. John / CC BY 2.0 (cropped)
- Related lab (Tokoro Lab): “Recycled Electronics - Circuit Boards ( )” Tony Webster from Minneapolis, Minnesota, United States / CC BY 2.0 (cropped)
- Related lab (Furui Lab): “Onshore drilling rig at night” Julius A OBARO / CC BY-SA 4.0 (cropped)
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