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Earth Atmosphere Measurement / Atmospheric Precision Measurement and Diagnosis Lab
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A lab for precise atmospheric measurement that uses radar, light, and sound waves to measure Earth's atmosphere.
AboutAbout the lab
Measuring Earth's atmosphere with electronic technology.
The Earth Atmosphere Measurement group (Hashiguchi Lab) applies the latest technologies in electrical and electronic engineering and in communications and information engineering to the science of Earth's atmosphere.
To capture changes in the Earth's environment and predict the future, the atmosphere must first be observed precisely.
The lab develops its own remote sensing instruments to collect atmospheric data, and analyzes that data together with data from international observation networks.
Its research is interdisciplinary, lying at the boundary between engineering and science, and the lab also puts great effort into international collaborative research.
Key terms
- Remote Sensing
- Technology that measures an object from a distance, using radio waves or light, without touching it.
- MU Radar
- A large atmospheric radar at the Shigaraki MU Observatory, made up of many antennas arranged in an array.
- Lidar
- An instrument that emits laser light into the sky and studies the state of the atmosphere from the light that returns.
NewsLab news
View More ↗ResearchResearch themes
The lab develops technologies for precisely measuring the atmosphere with radio waves, light, and sound waves, and conducts observational research on Earth's atmosphere. Using the MU Radar at the Shigaraki MU Observatory and the Equatorial Atmosphere Radar in Indonesia, it works on ground-based remote sensing and on observation of the lower atmosphere in the equatorial region.
*Illustrative imageA Portable Atmospheric Radar
The lab develops compact, portable atmospheric radars (wind profilers). Some of the results are also used in WINDAS, the Japan Meteorological Agency's atmospheric radar network.
*Illustrative imageCapturing Turbulence with the MU Radar and Drones
Turbulence, which carries heat and matter vertically, is a very small-scale phenomenon that is difficult to observe. In an international collaboration among Japan, the US, and France, the lab observes it simultaneously with small unmanned aerial vehicles carrying meteorological sensors and with the MU Radar, aiming to clarify what turbulence actually looks like.
*Illustrative imageObserving the Atmosphere with Light
The lab conducts atmospheric observation research using the latest optical devices, including lidar, which emits laser light into the sky to observe the atmosphere, and airglow imagers, which capture the faint emission of light from the upper atmosphere.
*Illustrative imageRASS: Measuring Temperature with Radio and Sound Waves
RASS (Radio Acoustic Sounding System) is an observation technique that determines the temperature aloft by combining radio waves and sound waves. The lab applies this technique to actual atmospheric radars to observe atmospheric disturbances, and is also developing RASS that uses a parametric speaker.
MembersFaculty
The lab's members are faculty, postdoctoral researchers, and doctoral, master's, and undergraduate students.
- ProfessorHiroyuki Hashiguchi
- Associate ProfessorKoji Nishimura
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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: “MU Radar, Research Institute for Sustainable Humanosphere, Kyoto University - Oct 15, 2011” eiko / CC BY-SA 2.0 (cropped)
- A Portable Atmospheric Radar: “Profiler wiatru” A. Kardaś / CC BY-SA 4.0 (cropped)
- Capturing Turbulence with the MU Radar and Drones: “Antennas of MU Radar, Research Institute for Sustainable Humanosphere, Kyoto University - Oct 15, 2011” eiko / CC BY-SA 2.0 (cropped)
- Observing the Atmosphere with Light: “VLT Laser Guide Star (img 4310)” ESO/H.H.Heyer / CC BY 4.0 (cropped)
- RASS: Measuring Temperature with Radio and Sound Waves: “SODAR-RASS 1” Kreuzschnabel / CC BY-SA 3.0 (cropped)
- Related lab (リモートセンシング工学 / レーダー大気圏科学): “Atmospheric Radar Array - geograph.org.uk - 3106005” Chris Andrews / CC BY-SA 2.0 (cropped)
- Related lab (知的通信網): “NOC-Architel” Mike Reyher / CC BY 2.0 (cropped)
- Related lab (高温プラズマ物性 / エネルギー生成研究部門 複合系プラズマ研究): “Historical stellarator Wendelstein IIb, on display at IPP Greifswald” Siarhei Besarab / CC BY-SA 4.0 (cropped)
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