球体位错理论计算程序的总体设计与具体实现

Abstract

Abstract: We present a detailed introduction of the computing codes for the coseismic deformations on a layered spherical earth, including overall design of the programs, detailed information of the supporting documents and physical meanings of the output files. At the same time, we also introduce the basic usage of the computing codes, as well as the matters needing attention. Overall, our computing programs are made of three parts: ① Codes for dislocation Green′s functions, which present two-dimension discrete numerical frame of Green′s functions based on a specific symmetric earth model; ② Codes for integration, which perform bi-quadratic spline interpolation operations with the frame of Green′s functions. A suitable combination of four independent dislocations is given to compute the coseismic deformations including displacements, strain, geoid and gravity changes resulting from an arbitrary seismic source at an arbitrary position; ③ Supporting documents, which present the information of earthquake′s fault model and observation points. Even without grasping the theories and codes, the readers can also correctly calculate the coseismic deformations caused by an arbitrary earthquake, by suitable changing the information of the supporting documents. Because of this reason the computing codes are easy to be generalized.

Key words: Spherical dislocation theory, Displacement, Gravity changes, Strain changes, Computing codes.

CLC Number:

P315

FU Guang-yu, SUN Wen-ke. Overall Design and Specific Structures of the Computing Codes for Coseismic Deformations on a Layered Spherical Earth[J]. EARTHQUAKE, 2012, 32(2): 73-87.

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Overall Design and Specific Structures of the Computing Codes for Coseismic Deformations on a Layered Spherical Earth

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