YOSHIDA Ryuji

Affiliation

Faculty of Environment and Information Sciences, Division of Natural Environment and Information

Job Title

Associate Professor

Related SDGs




ORCID  https://orcid.org/0000-0003-3238-2595

Education 【 display / non-display

  • 2010.4
    -
    2013.3

    Kyoto University   Doctor Course   Unfinished Course

  • 2008.4
    -
    2010.3

    Kyoto University   Master Course   Completed

  • 2004.4
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    2008.3

    Okayama University   Graduated

Degree 【 display / non-display

  • Doctor of Science - Kyoto University

Campus Career 【 display / non-display

  • 2022.4
     
     

    Duty   Yokohama National UniversityFaculty of Environment and Information Sciences   Division of Natural Environment and Information   Associate Professor  

  • 2022.5
     
     

    Concurrently   Yokohama National UniversityInstitute of Advanced Sciences   Research Associate  

External Career 【 display / non-display

  • 2019.5
    -
    2022.3

    National Oceanic and Atmospheric Administration   Earth System Research Laboratories, Chemical Sciences Laboratory   Researcher  

  • 2018.8
    -
    2019.4

    National Oceanic and Atmospheric Administration   Earth System Research Laboratories, Chemical Sciences Laboratory   Researcher  

  • 2016.8
    -
    2018.7

    Kobe University   Research Center for Urban Safety and Security  

  • 2014.10
    -
    2018.7

    RIKEN AICS   Computational Climate Science Research Team  

  • 2011.10
    -
    2014.9

    RIKEN AICS   Computational Climate Science Research Team   Research Associate  

Research Areas 【 display / non-display

  • Natural Science / Atmospheric and hydrospheric sciences  / Meteorology, Climate, Tropical Cyclone, HPC

 

Papers 【 display / non-display

  • Two-Dimensional Idealized Hadley Circulation Simulation for Global High Resolution Model Development

    Ryuji Yoshida, Takanobu Yamaguchi, Graham Feingold

    Journal of Advaces in Modeling Earth Systems   14 ( 1 )   2022  [Reviewed]

    DOI

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    Language:English   Publishing type:Research paper (scientific journal)   Joint Work  

  • Contributions of the Large-Scale Environment to the Typhoon Genesis of Faxai (2019)

    FUDEYASU Hironori, SHIMADA Udai, OIKAWA Yoshinori, EITO Hisaki, WADA Akiyoshi, YOSHIDA Ryuji, HORIN … Show more authors

    Journal of the Meteorological Society of Japan. Ser. II   advpub ( 0 )   2022  [Reviewed]

    DOI CiNii Research

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Meteorological Society of Japan   Joint Work  

  • How Significant are Low-Level Flow Patterns in Tropical Cyclone Genesis over the Western North Pacific?

    Yoshida Ryuji, Fudeyasu Hironori

    MONTHLY WEATHER REVIEW   148 ( 2 )   559 - 576   2020.2  [Reviewed]

    DOI Web of Science

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)   Joint Work  

  • Development Conditions for Tropical Storms over the Western North Pacific Stratified by Large-Scale Flow Patterns

    Fudeyasu Hironori, Yoshida Ryuji, Yamaguchi Munehiko, Eito Hisaki, Muroi Chiashi, Nishimura Shuji, … Show more authors

    Journal of the Meteorological Society of Japan. Ser. II   98 ( 1 )   61 - 72   2020

    DOI Web of Science CiNii Research

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Meteorological Society of Japan   Joint Work  

    <p>This study investigated the characteristics and environmental conditions of tropical cyclones (TCs) over the western North Pacific from 2009 to 2017 that dissipated before reaching tropical storm strength (TDs) under unfavorable environmental conditions; we compared TDs with TCs that reached tropical storm strength (TSs) in terms of modulations of relevant large-scale flow patterns. The flow patterns were categorized based on five factors: shear line, confluence region, monsoon gyre, easterly waves, and Rossby wave energy dispersion from a preexisting cyclone. Among 476 cases, 263 TDs were detected using best-track data and early stage Dvorak analysis. The TCs in the environments associated with the confluence region or Rossby wave energy dispersion (easterly waves) tended to reach tropical storm strength (remain weak) compared with the other factors. The average locations of TDs at the time of cyclogenesis in the confluence region, monsoon gyre, and easterly waves (Rossby wave energy dispersion) in the summer and autumn were farther to the west (east and north) than those of TSs that exhibited the same factors. The environments around TDs were less favorable for development than those around TSs, as there were significant differences in atmospheric (oceanic) environmental parameters between TDs and TSs in the factors of confluence region, easterly waves, and Rossby wave energy dispersion (shear line, monsoon gyre, and Rossby wave energy dispersion). The environmental conditions for reaching tropical storm strength over their developing stage, using five factors, can be summarized as follows: higher tropical cyclone heat potential in the shear line and monsoon gyre, weak vertical shear in the confluence region, wet conditions in the easterly waves, and higher sea surface temperatures and an intense preexisting cyclone in Rossby wave energy dispersion from a preexisting cyclone.</p>

  • Environmental Factors Contributing to Tropical Cyclone Genesis over the Western North Pacific.

    Yoshida Ryuji, Hirohiko Ishikawa

    MONTHLY WEATHER REVIEW   141   451 - 467   2013  [Reviewed]

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    Language:English   Publishing type:Research paper (scientific journal)   Joint Work  

Review Papers 【 display / non-display