New Method for Low Order Spectral Model and Its Application

CAO Jie; YOU Ya-lei

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CAO Jie, YOU Ya-lei. New Method for Low Order Spectral Model and Its Application[J]. Applied Mathematics and Mechanics, 2006, 27(4): 424-430.

Citation:

CAO Jie, YOU Ya-lei. New Method for Low Order Spectral Model and Its Application[J]. Applied Mathematics and Mechanics, 2006, 27(4): 424-430.

Citation:

CAO Jie, YOU Ya-lei. New Method for Low Order Spectral Model and Its Application[J]. Applied Mathematics and Mechanics, 2006, 27(4): 424-430.

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New Method for Low Order Spectral Model and Its Application

CAO Jie,
YOU Ya-lei

Department of Atmospheric Science, Yunnan University, Kunming 650091, P. R. China

Received Date: 2005-03-10
Rev Recd Date: 2005-10-07
Publish Date: 2006-04-15

Abstract

Abstract

In order to over come the deficiency existing in classical method of low order spectral model,a new method for low order spectral model was a dvanced.Through calculating the multiple correlation coefficients between combinatio ns of different function and the reco rded data under the least square criterion,the truncated functions which can mostly reflect the studied physical phenomenon was objectively distilled from these data.The new method ov ercame the deficiency of artificially sele cting the truncated functions in the classical low order spectral model.The new method being applied to study the inter-annual variation of summer atmospheric circulation over Northern Hemisphere,the truncated functions were obtained with the atmospheric cir culation data of June 1994 and June 1998.The mechanisms for the two-summer atmospheric circulation variations over Northern Hemisphere were obtained with two-layer quasi-geo strophic baroclinic equation.
- low order spectral model,
- least squarecr iterion,
- truncated function,
- atmospheric circulation in summer,
- physical mechanism

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References(16)

References

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