Irfans Maulana Firdaus

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Hi, hi! I am a Specially Appointed Assistant Professor at the Hydro-Environment System Laboratory, Department of Civil and Environmental Engineering, Graduate School of Engineering, at Tohoku University, Japan.

I received my Ph.D. from the Atmospheric Science Laboratory, Geophysics Department, Graduate School of Science, Tohoku University, Japan. Before pursuing my Ph.D., I obtained my B.Sc. in Meteorology and M.Sc. in Earth Science from the Bandung Institute of Technology, Indonesia.

My previous research focused on the spatiotemporal characteristics of Persistent Elongated Convective Systems (PECS) in Indonesia and the mechanisms of convective cell initiation and regeneration over the Bandung Basin, a region characterized by complex topography. During my Ph.D., I focused on tornadoes in tropical regions, particularly in Indonesia, including tornado climatology, the environmental conditions associated with tornadogenesis, and numerical simulations of the 2024 Rancaekek tornado.

Currently, my research focuses on extreme precipitation, climate change, and extreme weather. I investigate the characteristics of extreme precipitation, including its frequency, intensity, and return periods, and examine how these extremes may change under a changing climate. I also conduct high-resolution numerical simulations using the Weather Research and Forecasting (WRF) Model to investigate the physical processes and dynamics associated with extreme weather events.

Feel free to reach out to me at irfansmfirdaus@gmail.com or irfans.maulana.firdaus.d6@tohoku.ac.jp.

News

Oct 01, 2026 I have joined Tohoku University as a Specially Appointed Assistant Professor. Looking forward to new research opportunities and collaborations with colleagues in Japan and around the world.
Sep 26, 2026 Our paper with title Tornado Environments Derived from ERA5 over Indonesia has been accepted for publication in Geoscience Letters.
May 28, 2026 I presented our progress results with title ‘Numerical Simulation of Non-Supercell Tornado Rancaekek, Indonesia on 21 February 2024’ in JpGU-AGU Meeting 2026 on 28 May 2026.
Nov 07, 2025 I presented our progress results with title ‘Comparison of ERA5 and Sounding Data over Tropical Maritime Region’ in 2025 MSJ Autumn Meeting on 7 November 2025.
Nov 04, 2025 Our paper with title “Indonesia Tornado Database: Tornado Climatology of Indonesia” has been published in Natural Hazards and Earth System Sciences (NHESS).

Selected Publications

  1. Geos. Let.
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    Tornado environments derived from ERA5 over Indonesia
    I.M. Firdaus, Yamazaki T., and M.R Abdillah
    Geoscience Letter, 2026
  2. NHESS
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    Indonesia Tornado Database: Tornado Climatology of Indonesia
    I.M. Firdaus, Yamazaki T., M.R Abdillah, and 1 more author
    Natural Hazards and Earth System Sciences (Nat. Hazards Earth Syst. Sci.), 2025
  3. Geos. Let.
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    Mechanism of initiation and regeneration of convective cell in Bandung Basin, Indonesia
    I.M. Firdaus, N.J. Trilaksono, and Yamazaki T.
    Geoscience Letter, 2024