Open Data/Open Source: Seismic Unix scripts to process a 2D land line

• Main Authors: Karl Schleicher, John A
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: Alaska North Slope; north slope; Alaska
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.362.7120; http://www.reproducibility.org/RSF/book/data/alaska/paper.pdf

This paper describes how to process an internet downloadable 2D land line data set though a very basic processing sequence using Seismic Unix. The data from the Alaska North Slope has good signal, although it may be suitable for testing ground-roll and noise burst attenuation programs. The detailed steps to download the dataset from the Internet and process it are described. You should be able to follow these steps and recreate my results. I hope this will accelerate the testing and validation of programs developed in different research groups. The paper starts with background information such as data downloading, region overview, data acquisition, and previous processing. The scripts and custom programs for Seismic Unix translation, header load, qc, shotrecord velocity filter, deconvolution, CDP gather, velocity analysis, residual statics, stack, and post stack migration can be downloaded to 1 your computer. Header loading is not well described in other Seismic Unix documentation or papers. One approach to header loading is described here. The velocity analysis script is more advanced than what I found in previous publications. This paper is the beginning of an effort to build an open data/open source library for research, software testing, demonstrations, and user training. I encourage you to use these scripts and improve on my results. You can send me email for the latest results on this line, and progress on other software and data. 2