1. General Model Information

Name: CCSR/NIES Atmospheric General Circulation Model

Acronym: AGCM

Main medium: all
Main subject: meteorology, hydrology
Organization level: Ecosphere
Type of model: partial differential equations (finite elements,3D)
Main application:
Keywords: climate change, atmosphere, global circulation


Uno, Itsushi
Laboratory of Atmospheric Physics
Atmospheric Environment Division,
Natiotnal Institute for Environmental Studies
16-2 Onogawa, Tsukuba 305, JAPAN

Phone: +81-298-50-2141
Fax: +81-298-51-4732
email: iuno@riam.kyushu-u.ac.jp


Atusi Numaguiti (National Institute for Environmental Studies)
Masaaki Takahashi, Teruyuki Nakajima, Akimasa Sumi (Center for Climate System Research, University of Tokyo)


An atmospheric general circulation model for climate studies (CCSR/NIES AGCM) is developed. The model uses spectral transformation method in horizontal and grid differentiation on sigma coordinate in vertical. The physical parameterization includes a sophisticated radiation scheme with two-stream k-distribution method, simplified Arakawa-Schubert cumulus scheme, prognostics of cloud water scheme, turbulence closure scheme with cloud effect, orographic gravity wave drag, and a simple land-surface submodel. The model also includes plug-in compatible alternative physical parameterization schemes and a slab mixed-layer ocean as optional modules.

detailed description

II. Technical Information

II.1 Executables:

Operating System(s):

II.2 Source-code:

Programming Language(s):

II.3 Manuals:

II.4 Data:

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

III.2.1 Input

III.2.2 Output

IV. References

  • Arakawa, A. and W.H. Schubert, 1974: Interactions of cumulus cloud ensemble with the large-scale environment. Part I. J. Atmos. Sci., 31, 671-701.

  • Arakawa A., Suarez M.J., 1983: Vertical differencing of the primitive equations in sigma coodinates. Mon. Weather Rev., 111, 34-45.

  • Bourke, W., 1988: Spectral methods in global climate and weather prediction models. in Physically-Based Modelling and Simulation of Climate and Climatic Change. Part I., 169-220., Kluwer.

  • Haltiner, G.J. and R.T. Williams, 1980: Numerical Prediction and Dynamic Meteorology (2nd ed.), John Wiley & Sons, 477pp.

  • Le Treut H. and Z.-X. Li, 1991: Sensitivity of an atmospheric general circulation model to prescribed SST changes: feedback effects associated with the simulation of cloud optical properties. Climate Dynamics, 5, 175-187.

  • Louis, J., 1979: A parametric model of vertical eddy fluxes in the atmosphere. Bound. Layer Meteor., 17, 187-202.

  • Manabe, S., J. Smagorinsky and R.F. Strickler, 1965: Simulated climatology of a general circulation model with a hydrologic cycle. Mon. Weather Rev. , 93, 769-798.

  • Matthews, E., 1983: Global Vegetation and Land Use: New High-Resolution Data Bases for Climate Studies. J. Clim. Appl. Meteor., 22, 474-487.

  • McFarlane, N. A., 1987: The effect of orographically excited wave drag on the general circulation of the lower stratosphere and troposphere. J. Atmos. Sci., 44, 1775-1800.

  • Mellor, G.L. and T. Yamada, 1974: A hierarchy of turbulence closure models for planetary boundary layers. J. Atmos. Sci., 31, 1791-1806.

  • Mellor, G.L. and T. Yamada, 1982: Development of a turbulence closure model for geophysical fluid problems. Rev. Geophys Atmos. Phys., 20, 851-875.

  • Miller, M.J., A.C.M. Beljaars and T.N. Palmer, 1992: The sensitivity of the ECMWF model to the parameterization of evaporation from the tropical oceans. J. Climate, 5, 418-434.

  • Moorthi S. and M.J. Suarez, 1992: Relaxed Arakawa-Scubert: A parameterization of moist convection for general circulation models. Mon. Weather Rev., 120 978-1002.

  • Nakajima T. and M. Tanaka, 1986: Matrix formulation for the transfer of solar radiation in a plane-parallel scattering atmosphere. J. Quant. Spectrosc. Radiat. Transfer, 35, 13-21.

  • Numaguti, A. 1993: Dynamics and energy balance of the Hadley circulation and the tropical precipitation zones: Significance of the distribution of evaporation. J. Atmos. Sci., 50, 1874-1887.
  • Takahashi, M., N. Zhao, and T. Kumakura,1997: Equatorial waves in a general circulation model simulating a quasi biennial oscillation, J. Meteor. Soc. Japan, 75, 529-540, 1997.
  • Takigawa, M., M. Takahashi, and H. Akiyoshi, 1999: Simulation of ozone and other chemical species using a CCSR/NIES AGCM with coupled stratospheric chemistry, J. Geophys. Res., 14003-14018,1999.
  • Takahashi, M.,1999: Simulation of the quasi-biennial oscillation in a general circulation model, Geophys. Res. Lett., 26, 1307-1310, 1999.
  • Sato, N., and M. Takahashi,1999: The interdiurnal variation of summer cumulus convection over the Kanto plain in Japan, J. Meteor. Soc. Japan, 77, 1199-1220, 1999.

    V. Further information in the World-Wide-Web

    VI. Additional remarks

    Information and remarks about the application of this model

    Last review of this document by: T. Gabele, Tue Oct 7 1997
    Status of the document:
    last modified by Tobias Gabele Wed Aug 21 21:44:39 CEST 2002

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