[An experimental regional scale climate simulation laboratory]
The major focus of this CHAMMP science team project is the development and in-model testing of new numerical methods and dynamical algorithms which are particularly well suited to massively parallel computers. The project includes efforts relevant to both global ocean circulation models and atmospheric General Circulation Models GCMS. During the first year of the project we have been focusing on two basic areas. The first of these is the implementation and testing of a global non-linear dynamics code using the Local Spectral (LS) formalism. During the first year of the CHAMMP project we have been focusing on developing an efficient parallel implementation of a spherical LS code on a massively parallel computer. Our initial implementation platform has been the Thinking Machines CM5 system. We have completed an initial implementation of the LS system on the CM5 using a semi-spectral partitioning where the convolution sums in the LS kernel are computed using direct convolutions in the meridional direction and FFT based fast convolutions are performed using the Winnograd method in the zonal direction. A second element of the first year effort has been the evaluation of alternate dynamical systems for use in global ocean circulation models. In this area we have concentrated our efforts on parabolic non-hydrostatic systems using artificial compressibility.
- Research Organization:
- Univ. of Wisconsin, Madison, WI (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-92ER61474
- OSTI ID:
- 6242951
- Report Number(s):
- DOE/ER/61474-1; ON: DE93015935
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
ATMOSPHERIC CIRCULATION
GENERAL CIRCULATION MODELS
OCEANIC CIRCULATION
CLIMATE MODELS
L CODES
PARALLEL PROCESSING
PROGRESS REPORT
COMPUTER CODES
DOCUMENT TYPES
MATHEMATICAL MODELS
PROGRAMMING
540110*
540310 - Environment
Aquatic- Basic Studies- (1990-)
990200 - Mathematics & Computers