segy trace header : delrt

109-110 : Delay recording time

In usual bottom profiling the sample interval is short. To reduce the trace data file size, we can use the “delrt” time. Then in order to process or display a seismic section, certain adjustments must be made to the raw data to obtain a constant “delrt” value.

1. promax에서 segyread할때 delrt value는 무시당한다.
2. 게다가 promax에서 segywrite하면 delrt value값은 null이 된다.
3. 그래서 망했다.

One comment

  1. 그러고보니 파일에 기록된 delrt값도 ms값이 아니라 second/scale1값이었군 -_-;

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