Outputs

Station parameters dataframe/csv

Dataframe/.csv that is returned when save_stations in the input_parameters.yaml is set to true.

Variable	Data type	Units	Description
station	str	none	Name of station.
lat	float	degrees	Latitude of the station.
lon	float	degrees	Longitude of the station.
elevation	float	meters	Elevation of the station.

Array processing dataframe/csv

Dataframe/.csv that is returned when save_events in the input_parameters.yaml is set to true.

Variable	Data type	Units	Description
time	str	UTCDateTime	Time of array processing. Time represents center of processing window.
relpow	float	?	Relative power of incoming signal. FK only.
abspow	float	?	Absolute power of incoming signal. FK only.
baz_obspy	float	degrees	Array backazimuth returned by obspy (FK only). Backazimuth is in terms of degrees from north, but is -180 to 180 instead of 0-360.
array_slow	float	s/km	Slowness returned from array processing.
baz_error	float	degrees	Backazimuth error (catalog baz - array baz).
array_baz	float	degrees	Backazimuth returned from array processing
slow_error	float	s/km	Slowness error (catalog slow - array slow).
array_vel	float	km/s	Trace velocity returned by array processing. Recall, trace velocity = 1/slow.
conf_int_vel	float	km/s	95% confidence interval of trace velocity. LS/LTS only.
conf_int_baz	float	degrees	95% confidence interval of backazimuth. LS/LTS only.
mdccm	float	?	Median of cross correlation maxima. LS/LTS only.
max_freq	float	Hz	Max frequency used for bandpass filter.
min_freq	float	Hz	Min frequency used for bandpass filter.
window_length	float	seconds	Length of window for array processing.
window_start	float	seconds	Start of window relative to the trigger time.
multiple_triggers	str	none	Method chosen for handling multiple triggers in ptolerance window.
no_triggers	str	none	Method chosen for handling no_triggers.
trigger_time	str	none	Trigger time chosen in UTC Time.
trigger_type	str	none	Type of trigger. Either Multiple triggers,Taup, or STA/LTA trigger.
sta/lta	float	none	Median of signal to noise ratio peak next to trigger.
trigger_length	float	seconds	How long the trigger was "On" before going below "Off" threshold.
num_stations	int	none	Number of stations used for array processing.
array_lat	float	degrees	Latitude of center of array.
array_lon	float	degrees	Longitude of center of array.
event_id	str	none	USGS event id of earthquake.
velocity_model	str	none	Velocity model used for slowness calculation.
array_processing	str	none	Array processing method used (FK, LS, LTS)
min_triggers	int	none	Minimum number of stations needed to pick a phase to associate into a trigger.
depth	float	kilometers	Depth of earthquake in kilometers.
magnitude	float	meters	Magnitude of earthquake.
latitude	float	degrees	Latitude of earthquake
longitude	float	degrees	Longitude of earthquake
time_utc	str	none	Origin time of earthquake in UTC.
time_ak	str	none	Origin time of earthquake in AKST.
distance	float	kilometers	Distance from array to earthquake epicenter.
backazimuth	float	degrees	Backazimuth to catalog location.
array	str	none	Name of array.
slowness	float	s/km	Catalog slowness calculated from 1D velocity model and catalog location.
trace_vel	float	km/s	Catalog trace velocity. Recall trace velocity = 1/slowness
incident_angle	float	degrees	Incident angle of incoming wave as calculated by 1D velocity model.
p_arrival	float	seconds	Expected p-arrival at station from 1D velocity model. Time is in seconds since earthquake origin time.