Sorting and Merging to Common Receiver Component Gathers

What we would like to look at is not a multiplexed display of different components, but rather a gather of all one type of component. For P-waves, our first choice would be to gather all the down-hole vertical component data into a single file (trace #1 from all the files). For the SH-waves, we will want to gather all the down-hole T-component data (trace #3 from all the files). Included in the BSU distribution is a bash script, Merge, which produces some of these common component gathers. An alternative script is Merge-all (Appendix B) which generates all combinations of sum or difference on all components. In addition to gathering a component, the Merge script also computes wave field enhancements and wave shaping to remove source variations monitored by the reference phone. Begin by copying the Merge script into your ``brot'' directory which contains the brot*.seg files. NOTE: For vertical component sources (only one polarization) see script Merge2 (in the scripts directory and Appendix C). Merge2 is designed for 7 component recording (load cell on hammer is 7th signal). This script can also be modified for vertical impact sources without a load cell.