Design of an Enhanced Global Spectral Model

Abstract : The objective of this study is the development of a vectorized, multiprocessing global spectral model (GSM) with enhanced physical parameterizations. The starting point for this work is the current Geophysics Laboratory (GL) GSM. Described is the multitasking and vectorization design for the GSM. One proposes to implement the latitude tasking scheme for multiprocessing the loop over latitude in the calculation of spectral tendencies and adjusted model variables. The general truncation version of the hydrodynamics code will be used. Wavenumber calculations will be multiprocessed and vectorized over wavenumber. All gridpoint calculations will be vectorized over longitude. The physics packages will be modified to bring them into close compliance with the plug compatibility rules.

[1]  Joseph Sela,et al.  Spectral Modeling at the National Meteorological Center , 1980 .

[2]  Michael B. Ek,et al.  Boundary Layer Parameterization for a Global Spectral Model , 1991 .

[3]  C. Rodgers,et al.  The computation of infra‐red cooling rate in planetary atmospheres , 1966 .

[4]  Eugenia Kalnay,et al.  Rules for Interchange of Physical Parameterizations , 1989 .

[5]  Kuo-Nan Liou,et al.  Development of Radiation and Cloud Parameterization Programs for AFGL (Air Force Geophysics Laboratory) Global Models. , 1988 .

[6]  Ross N. Hoffman.  A Simple Implementation of the Semi-Implicit Time Scheme in a Primitive Equation Spectral Model , 1985 .

[7]  Ronald G. Isaacs,et al.  Improving Numerical Weather Prediction by Maximizing the Use of Assimilated Satellite Data. , 1985 .

[8]  Thomas G. Dopplick,et al.  Radiative Heating of the Global Atmosphere , 1972 .

[9]  Paul R. Lowe.  An Approximating Polynomial for the Computation of Saturation Vapor Pressure. , 1977 .

[10]  Ross N. Hoffman,et al.  Multiprocessing a Global Spectral Numerical Weather Prediction Model , 1989, PPSC.

[11]  Kuo-Nan Liou,et al.  Parameterization of the Radiative Properties of Clouds , 1979 .

[12]  Yoshi Ogura,et al.  A Study of Cumulus Parameterization in a Global Circulation Model. , 1985 .

[13]  Ross N. Hoffman,et al.  Alterations of the Climate of a Primitive Equation Model produced by Filtering Approximations and Subsequent Tuning and Stochastic Forcing , 1981 .

[14]  F. W. Murray,et al.  On the Computation of Saturation Vapor Pressure , 1967 .

[15]  Kuo-Nan Liou,et al.  Radiation Parameterization Programs for Use in General Circulation Models. , 1984 .

[16]  Thomas Nehrkorn.  On the Computation of Legendre Functions in Spectral Models , 1990 .

[17]  K. Mitchell,et al.  The AFGL Global Spectral Model: Expanded Resolution Baseline Version. , 1984 .

[18]  Stefan August Kinne.  Parameterization of Radiative Transfer in the Earth's Atmosphere with Specific Applications to Clouds. , 1987 .