Programs in Physics & Physical Chemistry
|[Licence| Download | New Version Template] acca_v1_0.gz(46 Kbytes)|
|Manuscript Title: Algorithm for the creation of the P-Tau and P-X planes from T-X plane data.|
|Authors: A. Carswell, W. Moon|
|Program title: TAUP|
|Catalogue identifier: ACCA_v1_0|
Distribution format: gz
|Journal reference: Comput. Phys. Commun. 32(1984)185|
|Programming language: Fortran.|
|Computer: AMDAHL 470/V8.|
|Operating system: IMS/VS.|
|RAM: 8K words|
|Word size: 32|
|Peripherals: magnetic tape, graph plotter.|
|Keywords: Geophysics, P-tau, P-x, Slant stack, Seismic processing, Cross stack.|
Nature of problem:
With the need for increased resolution in seismic interpretation many processors have started to perform their processing in data domains other than the time-offset domain. The TAUP program creates the two of the most popular of these domains, P-Tau (wave slowness vs. intercept time) and P-X (wave slowness vs. offset).
The P-Tau plane is created by using the Slant Stack Transform. The P-X plane is created using the Cross Stack Algorithm.
The input seismic data may consist of up to 100 traces of 1500 samples each. The output P-Tau planes may be up to 100 by 500 and the P-X plane may have dimensions of 100 by 100. These restrictions are imposed only by the size of the array which may be increased easily.
The program processes one seismic trace at a time thus saving a large amount of space normally required to store them. If the P-X plane is requested then the seismic data cards must be used twice, but if it is on tape then is done automatically.
For the test example, in which both the P-Tau and P-X planes are created, the program takes about 4.7 seconds, the P-Tau plane created being 40 by 25 and the P-X plane being 40 by 35.
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