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eqcorrscan / EQcorrscan

Earthquake detection and analysis in Python.
https://eqcorrscan.readthedocs.io/en/latest/
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Documentation -- meaning of detection time #474

Open tctbeg opened 3 years ago

tctbeg commented 3 years ago

This issue is just to request/remind about documenting the meaning of detection time. How are the detection times calculated? As the earliest time in the template + the shift required to move the template to the detection?

flixha commented 3 years ago

Yes, the detection time is set according to the earliest time in the template (i.e. the starttime of the earliest trace in the template) plus the shift required to move the template to the detection.

The starttime of the earliest trace in the template is fixed during template creation, it uses the earliest pick for which waveform data are available minus the shift_len-parameter that lets the waveform start a bit before the picks.

calum-chamberlain commented 3 years ago

Thanks all. @flixha this stemmed from an email discussion and this is mostly a reminder for me to make this obvious from the docs!