Thread: waveforms clipping and aligning

Started: 2010-12-21 06:08:57
Last activity: 2010-12-21 16:56:36
Topics: SAC Help
Tatiana
2010-12-21 06:08:57
Hello!
I need help to do traces stacking with SAC. For the start:
1) I have preprocessed (bandpass filtered) waveforms where I added to the
header time of the first arrival.
2) I need to clip these files (10 sec before and 10 after the first arrival
) and align them.
3) I need to stack these traces.
1) and 3) - is not a problem.

I am not sure how to handle 2). I also would like to plot all these clipped
traces on one plot.

Thank you.

  • Mei Xue
    2010-12-21 16:56:36
    Hi Taliana,

    You can use "cut" to clip sac files, eg, "cut 10 100" will keep the
    waveform between 10 sec and 100 sec. You can use "p2" to plot all the
    traces on one plot.

    Mei

    2010/12/21 Tatiana Matveeva <globusyna<at>gmail.com>:
    Hello!
    I need help to do traces stacking with SAC. For the start:
    1) I have preprocessed (bandpass filtered) waveforms where I added to the
    header time of the first arrival.
    2) I need to clip these files (10 sec before and 10 after the first arrival
    ) and align them.
    3) I need to stack these traces.
    1) and 3) - is not a problem.

    I am not sure how to handle 2). I also would like to plot all these clipped
    traces on one plot.

    Thank you.

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