Earth atmosphere experiment (slab ocean)

Overview

An experiment with climatological boundary condition and forcing. But, ocean is treated as a slab ocean.

Model

• dcpam5-20161021

• A following option is given at compilation
  • -DSLTT2D1DMONOTONIC

Setting and results

• Setting
  • Primive eqaution system
  • Semi-Lagrangian transport of water vapor and cloud water and ice
  • Radiation model for the Earth's atmosphere
  • Turbulent mixing (Mellor and Yamada (1982) level 2.5)
  • Surface flux (Beljaars and Holtslag, 1991)
  • Simple land model (bucket model, subsurface heat conduction)
  • Relaxed Arakawa-Schubert cumulus parameterization (Moorthi and Suarez, 1992) with including ice phase
  • Non convective condensation (Le Treut and Li, 1991) with including ice phase
  • Convective adjustment (e.g., Manabe et al., 1965)
  • Simple cloud model (turbulent mixing, production by condensation, loss with constant lifetime, evaporation)
  • Gravity wave drag
  • Slab ocean
• T21L26 experiment
  • Resolution: T21L26
  • namelist files are below
    • Initial condition (atmosphere)
    • Initial condition (surface)
    • Execution (1-20 years) (21-40 years)
  • Used data
    • Topography (ETOPO1), land use (Matthews, 1983, 1984, 1985)
    • Ozone distribution (zonal mean value of CMIP5 climatology)
  • Integration time: 3 years
  • Result
    • Result at 20th year
    • Result at 40th year

Examples of a visualization program/script

• Program and script