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spherical harmonic analysis
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  spherical harmonic analysis
Least squares and integral methods for the spherical harmonic analysis of theSq-field
      
Spherical harmonic analysis is made of the grid point values of geopotential heights at 700 mb and 300 mb levels for the months April to August for the years 1967 and 1972.
      
Meridional transport of sensible heat in contrasting monsoon activity: Spherical harmonic analysis
      
The global distributions of the annual and seasonal means of the diurnal (S1) and semidiurnal (S2) surface pressure oscillations are investigated by spherical harmonic analysis.
      
The global distribution of the lunar barometric tideL2 is investigated by spherical harmonic analysis, based on 104 stations for the annual mean, and on 85 stations for the three seasons.
      
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In this paper,a numerical computing principle of spherical harmonic synthesis and analysis is introduced,and its inherent parallelizability is studied.Then a parallel computing strategy of domain division and collective communication is proposed.The parallelism of computation of spherical harmonic analysis and synthesis is achieved by applying MPI(Message Passing Interface)mode of parallel computing based on the Fourier transformation techniques.The experimental results indicate that the parallel implementation...

In this paper,a numerical computing principle of spherical harmonic synthesis and analysis is introduced,and its inherent parallelizability is studied.Then a parallel computing strategy of domain division and collective communication is proposed.The parallelism of computation of spherical harmonic analysis and synthesis is achieved by applying MPI(Message Passing Interface)mode of parallel computing based on the Fourier transformation techniques.The experimental results indicate that the parallel implementation significantly reduces computing time,compared with serial implementation,and obtains a linear speedup and high parallel performance

本文介绍了球谐合成和分析问题的数值计算原理,研究分析了其内在的并行性,提出了区域划分和聚合通信的并行计算策略。基于傅立叶变换技术,应用MPI(消息传递接口)并行编程模式,实现了球谐分析及合成计算的并行化。实验结果表明,较之串行实现,并行实现大大缩短了计算时间,获得了近似线形加速比,取得很高的并行效率。

 
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