MULTISCALE SIMULATOR FOR THE GEOENVIRONMENT:MSSG AND SIMULATIONS

MultiScale Simulator for the Geoenvironment (MSSG), which is a coupled non-hydrostatic atmosphere-ocean-land model, has been developed in the Earth simulator Center. Out line of MSSG is introduced and characteristics are presented. Computational performance analysis has been performed on the Earth Simulator. As the results of optimization, ultra high performance with MSSG achieved. Its computational performance on the Earth Simulator attained 52-55%of theoretical peak performance. In addition, results from preliminary validations including forecasting experiments are presented.

[1]  石岡 圭一,et al.  「Numerical Methods for Wave Equations in Geophysical Fluid Dynamics」, Dale R. Durran 著, Springer, 1998年, 465頁, 49.95ドル, ISBN 0-387-98376-7 , 1999 .

[2]  K. Stüben.  A review of algebraic multigrid , 2001 .

[3]  Louis J. Wicker,et al.  Time-Splitting Methods for Elastic Models Using Forward Time Schemes , 2002 .

[4]  A. Blackadar,et al.  High resolution models of the planetary boundary layer , 1979 .

[5]  Richard C. J. Somerville,et al.  On the use of a coordinate transformation for the solution of the Navier-Stokes equations , 1975 .

[6]  Feng Xiao,et al.  Conservative constraint for a quasi‐uniform overset grid on the sphere , 2006 .

[7]  Feng Xiao,et al.  Conservative CIP Transport in Meteorological Models , 2004 .

[8]  Takeshi Sugimura,et al.  NON-HYDROSTATIC ATMOSPHERIC GCM DEVELOPMENT AND ITS COMPUTATIONAL PERFORMANCE , 2005 .

[9]  Da‐Lin Zhang,et al.  A High-Resolution Model of the Planetary Boundary Layer—Sensitivity Tests and Comparisons with SESAME-79 Data , 1982 .

[10]  J. Fritsch,et al.  Numerical Prediction of Convectively Driven Mesoscale Pressure Systems. Part I: Convective Parameterization , 1980 .

[11]  Takehiko Satomura,et al.  Development of High-precision Nonhydrostatic Atmospheric Model (1): Governing Equations , 2003 .

[12]  A. Kageyama,et al.  ``Yin-Yang grid'': An overset grid in spherical geometry , 2004, physics/0403123.

[13]  Syukuro Manabe,et al.  NUMERICAL RESULTS FROM A NINE-LEVEL GENERAL CIRCULATION MODEL OF THE ATMOSPHERE1 , 1965 .

[14]  G. Mellor,et al.  A Hierarchy of Turbulence Closure Models for Planetary Boundary Layers. , 1974 .

[15]  D. Lilly.  On the numerical simulation of buoyant convection , 1962 .

[16]  R. Rasmussen,et al.  Explicit forecasting of supercooled liquid water in winter storms using the MM5 mesoscale model , 1998 .

[17]  H. Davies,et al.  A lateral boundary formulation for multi-level prediction models. [numerical weather forecasting , 1976 .

[18]  A. E. Gill.  Atmosphere-Ocean Dynamics , 1982 .

[19]  L. Perelman,et al.  Hydrostatic, quasi‐hydrostatic, and nonhydrostatic ocean modeling , 1997 .