Centers & Labs

Chief Scientist Laboratories

Mathematical Climatology Laboratory

Chief Scientist: Hirofumi Tomita (D.Eng.)
Hirofumi  Tomita(D.Eng.)

We aim to understand important processes for climate system and uncertainty in future climate prediction from the viewpoint of mathematical science. Our study will focus on the evaluation of convergence of solution by using LES instead of current turbulence scheme (RANS), the construction of theory for moist LES including phase transition of water, the sophistication of physical processes (e.g., micro-physics) and development of fast algorithm for these schemes, and the proposal of appropriate parameterization to low resolution models.

Main Research Field

Mathematical and physical sciences

Related Research Fields

Complex systems


  • Understanding of self-organization and hierarchical structure of cloud related to atmospheric turbulence
  • Exploration of climatological multi equilibrium solution under ideal condition
  • Development of new downscaling simulation method for regional climate projection

Selected Publications

  1. Adachi, S. A., S. Nishizawa, K. Ando, T. Yamaura, R. Yoshida, H. Yashiro, Y. Kajikawa, and H. Tomita:
    “An evaluation method for uncertainties in regional climate projections”
    Atmospheric Science Letters, Volume20, Issue1, e877. (2019).

Lab Members

Principal Investigator

Hirofumi Tomita
Chief Scientist

Core Members

Sachiho Adachi
Research Scientist
Kenta Sueki
Postdoctoral Researcher

Contact Information

RIKEN Center for Computational Science
7-1-26, Minatojima-minami-machi,
Chuo-ku, Kobe, Hyogo,
650-0047, Japan

Email: htomita [at]

Related Links