SCALE-GM is a global atmospheric model using the SCALE library.

Brief Description

Dynamical core

  • Grid system : Icosahedral grid
  • Governing equations: 3D fully compressible non-hydrostatic equations

Physical processes

  • Turbulence process: selectable from among the following
    • MYNN level 2.5 boundary scheme (Mellor and Yamada 1982; Nakanishi and Niino 2004)
  • Cloud microphysics: selectable from among the following
    • 3-class 1 moment bulk scheme (Kessler 1969)
    • 6-class 1 moment bulk scheme (Tomita 2008)
    • 6-class 2 moment bulk scheme (Seiki and Nakajima 2014)
    • spectral bin scheme (Suzuki et al. 2010)
  • Radiation process
    • a k-distribution-based broadband radiation transfer model (Sekiguchi and Nakajima 2008)
  • Land model: heat diffusion/bucket model
  • Ocean model: selectable from among the following
    • fixed to initial condition
    • input from external data
    • slab model
  • Urban model: a single-layer canopy model (Kusaka et al. 2001)
  • Surface models
    • The bulk method using the universal function (Beljaars and Holtslag 1991; Wilson 2001; Nishizawa and Kitamura 2018)
    • Louis-type bulk method (Uno et al. 1995)