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SEISPACK - An ''HP-C'' program for seismic refraction interpretation using ray-inversion technique
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DOI：10.1016/0098-3004(95)00080-1.png)
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摘要
En 中文
SEISPACK is an interactive interpretation software package on HP 9000/835 workstation for the systematic analysis of multifold seismic refraction data for engineering and groundwater problems. The algorithm has been developed by using the basic principle of Ray Inversion for Near-Surface Estimation (RINSE) and by introducing downward continuation of the refracted rays with the lowering of the observation plane and subsequent stripping of the overlying layer. The source code for the algorithm is written in ''HP-C'' and the supporting graphics modules have been developed using ''Starbase'' graphics libraries in an HP-UX environment. The listing of the source program implementing the algorithm is included. Because it is observed generally that raw field data yield useful information only after some preprocessing to remove the error involved in first-break picking, the present package also facilitates an option for an optimization of the raw data using a combinatorial optimization algorithm before proceeding to the actual computational stage. The package has been tested rigorously with the help of both synthetic data for 2-, 3-, and 4-layer horizontal and dipping interface Earth models and actual refraction data acquired from five profiles at the field site at Keshpal, Midnapore district, West Bengal, India. The results of the latter are tested by interpreting the data using the generalized reciprocal method. All the analyses carried out, some of which are presented in this paper, establish the applicability and usefulness of SEISPACK.
Keyword:
SEISPACK
HP-C
HP-UX
RINSE
downward continuation
combinatorial optimization
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IF:
4.4
论文数:
5.0K
被引数:
1.5W
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