6.2.9.1.1. eqcorrscan.utils.picker.cross_net¶
- eqcorrscan.utils.picker.cross_net(stream, env=False, master=False)[source]¶
Generate picks using a simple envelope cross-correlation.
Picks are made for each channel based on optimal moveout defined by maximum cross-correlation with master trace. Master trace will be the first trace in the stream if not set. Requires good inter-station coherance.
- Parameters:
stream (obspy.core.stream.Stream) – Stream to pick
env (bool) – To compute cross-correlations on the envelope or not.
master (obspy.core.trace.Trace) – Trace to use as master, if False, will use the first trace in stream.
- Returns:
Example
>>> from obspy import read >>> from eqcorrscan.utils.picker import cross_net >>> st = read() >>> event = cross_net(st, env=True) >>> print(event.creation_info.author) EQcorrscan
Warning
This routine is not designed for accurate picking, rather it can be used for a first-pass at picks to obtain simple locations. Based on the waveform-envelope cross-correlation method.