The gain was incorrectly entered on the field terminal, how can I correct the data?
The values for any SEGY header variable can be listed with the program segyhdr. The header values can be altered with the program segymod. Several hundred files can be modified in a minute using wildcards. For MSEED files, there is no scale factor in the header. For both SEGY and MSEED, you will want to correct the database. This is done most easily with pdbedit, fixing the preamp gain in the channel table. Database entry tables (Reftabs) can be edited prior to loading them in the database. It may be prudent to edit the logfile and include a comment (via podgen) as to what has happened.
Related Questions
- Ive entered some numbers in a field in my Access data sheet, but when I attempt to sort on that field, the values are not returned in numerical order. What do I do?
- The gain was incorrectly entered on the field terminal, how can I correct the data?
- What type of information should be recorded in the Observational Data field?
