Akira Yamauchi

ORCID: 0000-0003-3504-3775
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About
Contact & Profiles
Research Areas
  • Atmospheric aerosols and clouds
  • Atmospheric and Environmental Gas Dynamics
  • Software Engineering Techniques and Practices
  • Spacecraft Design and Technology
  • Meteorological Phenomena and Simulations
  • Atmospheric Ozone and Climate
  • Atmospheric chemistry and aerosols
  • Space Satellite Systems and Control
  • Marine and coastal ecosystems
  • Cryospheric studies and observations
  • Calibration and Measurement Techniques
  • Advanced Data Processing Techniques
  • Inertial Sensor and Navigation
  • Educational Technology and Assessment
  • Modeling, Simulation, and Optimization
  • Regional Economics and Spatial Analysis
  • Reservoir Engineering and Simulation Methods
  • Arctic and Antarctic ice dynamics
  • GNSS positioning and interference
  • Advanced Software Engineering Methodologies
  • Soil Moisture and Remote Sensing
  • Aeolian processes and effects
  • Technology Assessment and Management
  • Solar and Space Plasma Dynamics
  • Impact of Light on Environment and Health

The University of Tokyo
2020-2024

Nagasaki University
2018-2020

Sphere Institute
2020

Mitsubishi Space Software (Japan)
2002-2005

Toyo University
1973

Abstract. This study developed an algorithm for the Level 2 (L2) atmospheric radiation flux and heating rate product by a Japanese team Earth Cloud, Aerosol Radiation Explorer (EarthCARE). offers vertical profiles of downward upward longwave (LW) shortwave (SW) radiative fluxes their rates. paper describes generating products, including transfer model input datasets, its validation against measurement data fluxes. In testing phase before EarthCARE launch, we utilized A-Train that provided...

10.5194/amt-17-6751-2024 article EN cc-by Atmospheric measurement techniques 2024-11-28

Abstract. This study developed the Level 2 (L2) atmospheric radiation flux and heating rate product by a Japanese team for Earth Clouds, Aerosols, Radiation Explorer (EarthCARE). offers vertical profiles of downward upward longwave (LW) shortwave (SW) radiative fluxes their rates. paper describes algorithm generating products, including transfer model input datasets, its validation against measurement data fluxes. In testing phase before EarthCARE launch, we utilized A-Train that provided...

10.5194/amt-2024-78 preprint EN cc-by 2024-05-13

Abstract. This article gives the overview of Japan Aerospace Exploration Agency (JAXA) level 2 (L2) Standard and Research algorithms products by Japanese science teams for EarthCARE Clouds, Aerosols Radiation Explorer (EarthCARE), which is a JAXA European Space (ESA) joint satellite mission. First three single sensor 94GHz cloud profiling radar (CPR)-only, 355nm-atmospheric lidar with high spectral resolution function (ATLID)-only, multi-spectral imager (MSI)-only retrievals, their were...

10.5194/amt-2024-101 preprint EN cc-by 2024-07-02

Abstract We quantified effects of dust load on the cloud top ice fraction (ICF) in terms extinction coefficient (σ ext ). analyzed 3‐year data sets obtained from an active satellite sensor over middle to high latitudes northern hemisphere for temperatures (T) between 230 and 273 K σ values 0.005 0.145 km −1 . At about 250 K, ICF changed by 30% response above range , whereas at extreme T values, was relatively insensitive Thus, we concluded that primarily determined T, with substantial...

10.1029/2020gl088030 article EN Geophysical Research Letters 2020-07-29

We investigated the difference in fraction of ice (water) cloud bins between eastern and western parts Eurasia using Cloud‐Aerosol Lidar Infrared Pathfinder Satellite Observation (CALIPSO) data January 2007. The −25 0 °C was clearly larger than Eurasia. A significantly increased (about 20–30%) ice‐containing clouds is observed top temperatures range from −30 to −15 °C. bin fractions remarkable −20 −5 °C, being about 20% greater lower troposphere (below 3 km) These results indicate that...

10.1002/asl.807 article EN cc-by Atmospheric Science Letters 2018-03-01

Abstract. This study analyzed CloudSat satellite data to determine how the warm ocean Kuroshio Current affects vertical structure of clouds. Rainfall intensity around middle troposphere (6 km in height) over was greater than that surrounding areas. The drizzle clouds have a higher frequency occurrence geometrically thin (0.5–3 km) and thicker (7–10 compared those Kuroshio. Moreover, precipitating with geometric thickness 7 10 increased Stronger updrafts maintain large droplets upper part...

10.5194/acp-18-7657-2018 article EN cc-by Atmospheric chemistry and physics 2018-06-01

The design procedures for a typical real-time processing system (the checkout an artificial spacecraft) were analyzed by experienced engineers using the hierarchical functional software process (HFSP) model and attaching importance to time elapse in work. Another team was formed another problem, reusing process, evaluating it. It is shown that new set of processes which have broad adaptability can be obtained.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML"...

10.1109/cmpsac.1991.170229 article EN 2002-12-10

This study was done to dynamically estimate the social and economic movements in area, which would be much influenced by results of industrial development area.We have considered area as one system, it is essentially made up human beings. We adopted System Dynamics (SD) method more easily investigate dynamic behaviour system contain within itself so called non linearlity other characteristics that conventional hardly handle. SD a analysis developed Professor J. W. Forrester his group at MIT....

10.2457/srs.4.73 article EN Studies in Regional Science 1973-01-01

10.2322/jjsass1969.34.38 article EN The Journal of the Japan Society of Aeronautical Engineering 1986-01-01
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