All Stories

  1. Big Data Assimilation: Real-time 30-second-refresh Heavy Rain Forecast Using Fugaku During Tokyo Olympics and Paralympics

    Article • November 2023, ACM (Association for Computing Machinery)

    Takumi Honda, Seiya Nishizawa

  2. Regression-Based Ensemble Perturbations for the Zero-Gradient Issue Posed in Lightning-Flash Data Assimilation with an Ensemble Kalman Filter

    Article • Monthly Weather Review, June 2023, American Meteorological Society

    Takumi Honda

  3. Development of a Polar Mesocyclone and Associated Environmental Characteristics During the Heavy Snowfall Event in Sapporo, Japan, in Early February 2022

    Article • Journal of Geophysical Research Atmospheres, June 2023, American Geophysical Union (AGU)

    Takumi Honda

  4. Sensitivity to Localization Radii for an Ensemble Filter Numerical Weather Prediction System with 30-Second Update

    Article • Weather and Forecasting, April 2023, American Meteorological Society

    Takumi Honda

  5. Advantage of 30‐s‐Updating Numerical Weather Prediction With a Phased‐Array Weather Radar Over Operational Nowcast for a Convective Precipitation System

    Article • Geophysical Research Letters, June 2022, American Geophysical Union (AGU)

    Seiya Nishizawa, Takumi Honda

  6. Development of the Real‐Time 30‐s‐Update Big Data Assimilation System for Convective Rainfall Prediction With a Phased Array Weather Radar: Description and Preliminary Evaluation

    Article • Journal of Advances in Modeling Earth Systems, June 2022, American Geophysical Union (AGU)

    Seiya Nishizawa, Takumi Honda

  7. Potential Impacts of Lightning Flash Observations on Numerical Weather Prediction With Explicit Lightning Processes

    Article • Journal of Geophysical Research Atmospheres, September 2021, American Geophysical Union (AGU)

    Takumi Honda

  8. Oversampling Reflectivity Observations From a Geostationary Precipitation Radar Satellite: Impact on Typhoon Forecasts Within a Perfect Model OSSE Framework

    Article • Journal of Advances in Modeling Earth Systems, July 2021, American Geophysical Union (AGU)

    Takumi Honda

  9. Predictability of the July 2018 Heavy Rain Event in Japan Associated with Typhoon Prapiroon and Southern Convective Disturbances

    Article • SOLA, January 2021, Meteorological Society of Japan

    Takumi Honda

  10. Predictability of the July 2020 Heavy Rainfall with the SCALE-LETKF

    Article • SOLA, January 2021, Meteorological Society of Japan

    Takumi Honda

  11. Improving the Observation Operator for the Phased Array Weather Radar in the SCALE-LETKF System

    Article • SOLA, January 2020, Meteorological Society of Japan

    Takumi Honda

  12. Simulating precipitation radar observations from a geostationary satellite

    Article • Atmospheric Measurement Techniques, July 2019, Copernicus GmbH

    Takumi Honda

  13. Improving a Precipitation Forecast by Assimilating All-Sky Himawari-8 Satellite Radiances: A Case of Typhoon Malakas (2016)

    Article • SOLA, January 2019, Meteorological Society of Japan

    Takumi Honda

  14. Assimilation of Himawari-8 All-Sky Radiances Every 10 Minutes: Impact on Precipitation and Flood Risk Prediction

    Article • Journal of Geophysical Research Atmospheres, January 2018, Wiley

    Takumi Honda

  15. Assimilating All-Sky Himawari-8 Satellite Infrared Radiances: A Case of Typhoon Soudelor (2015)

    Article • Monthly Weather Review, January 2018, American Meteorological Society

    Seiya Nishizawa, Takumi Honda

  16. A Possible Mechanism of Tornadogenesis Associated with the Interaction between a Supercell and an Outflow Boundary without Horizontal Shear

    Article • Journal of the Atmospheric Sciences, March 2016, American Meteorological Society

    Takumi Honda

  17. How does mid-tropospheric dry air affect the evolution of supercellular convection?

    Article • Atmospheric Research, April 2015, Elsevier

    Takumi Honda