Makes picks on waveforms.
scautopick searches for waveform anomalies in form of changes in amplitude. It basically applies a robust sta/lta algorithm to the waveform streams which have been filtered before with a Butterworth filter of third order with corner frequencies of 0.7 and 2 Hz. Once the sta/lta ratio reached a specific value (by default 3) for a particular stream, a pick is set to the time when this threshold is exceeded. Once the ratio reaches a factor of 3, a pick is created and the picker is set inactive. The picker is reactivated for this stream once the sta/lta ratio falls to the value of 1.5.
The second task of scautopick is to calculate amplitudes for given magnitude types where the time window starts at the pick time. For example mb is calculated for a fixed time window of 30s after the pick, mB for time window of 90s, for MLv a time window of 150s is estimated to make sure that S-arrivals are inside this time window. The precalculated amplitudes are sent out and received by the magnitude tool.
New features have been added to configure the picker. These are useful when we would like to use a secondary picking module with different configuration or add specific parameter for a single station.
global-case:
module.trunk.global.detecStream = HH
module.trunk.global.detecLocID = ""
module.trunk.global.detecFilter = \
"RMHP(10)>>ITAPER(30)>>BW(4,0.7,2)>>STALTA(2,80)"
module.trunk.global.trigOn = 3
module.trunk.global.trigOff = 1.5
In the above case all the channels will be picked on HH channel with same filter and trigOn trigOff values.
station-case:
module.trunk.CH.FUORN.detecStream = EH
module.trunk.CH.FUORN.detecFilter = \
"RMHP(10)>>ITAPER(30)>>BW(4,0.7,2)>>STALTA(2,80)"
module.trunk.CH.FUORN.trigOn = 2
module.trunk.CH.FUORN.trigOff = 1
in this case, regardless what has been defined in the trunk/key, in the profile and in the module.trunk.global variable, for station FUORN we will pick on the EH channels with this specific parameters.
We can also mix the two above cases, e.g.
module.trunk.global.detecStream = HH
module.trunk.global.detecLocID = ""
module.trunk.global.detecFilter = \
"RMHP(10)>>ITAPER(30)>>BW(4,0.7,2)>>STALTA(2,80)"
module.trunk.global.trigOn = 3
module.trunk.global.trigOff = 1.5
module.trunk.CH.EMBD.detecStream = EH
module.trunk.CH.ZUR.trigOn = 10
In this case we have a global config for the entire network and a specific stream for EMBD, and a specific trigger threshold for ZUR.
scautopick inherits global options.
Type: string
Defines the default filter used for picking. Station specific configurations will override this value.
Type: double
Time correction applied for each pick made. Station specific values override this value. Default is -0.8.
Type: int
Defined the record ringbuffer size in seconds. Default is 300.
Type: int
The leadTime defines the time in seconds to start picking on waveforms before current time. Default is 60.
Type: int
The initTime defines a timespan in seconds for that the picker is blind after initialization. This time is needed to initialize the filter and depends on it. Default is 60.
Type: bool
Interpolate gaps linearily? This is valid for gaps shorter than thresholds.maxGapLength. Default is false.
Type: list:string
Defines the amplitude types to be computed by the picker as well. Default is MLv, mb, mB.
Type: string
Configures the picker to use. By default only a simple detections are emitted as picks. To enable real picking on a time window around the detection, an algorithm (plugin) can be defined with this parameter.
Type: string
Configures the secondary picker to use.
Type: bool
If enabled the all streams are used for picking that are received by the picker. This option has only effect if a file is used as input which contains more data than the picker requests. If connected to a waveform server such as SeedLink the picker will only receive the data it subscribed to. Default is true.
Type: bool
If enabled and a picker is configured then detections are sent as well. To distinguish between detections and picks the evaluation mode of the pick is set to manual. This is meant to be a debug option which can be used to compare detections and picks by their evaluation mode. Default is false.
Type: double
For which value on the filtered waveforms is a pick detected. Station specific values override this value. Default is 3.
Type: double
The value the filtered waveforms must reach to enable detection again. Between triggerOn and triggerOff the picker is blind and does not produce picks. Station specific values ovveride this value. Default is 1.5.
Type: double
The maximum gap length in seconds to handle. Gaps larger than this will cause the picker to be resettet. Default is 4.5.
Type: double
The time window used to compute a maximum (snr) amplitude on the filtered waveforms. Default is 10.
Type: double
The dead time in seconds. Default is 30.
Type: double
Default is 3.
Type: string
Group used to send amplitudes to. Default is AMPLITUDE.
Type: boolean
Enables/disables picking on a station. Default is true.
Type: string
Defines the filter to be used for picking. Default is "RMHP(10)>>ITAPER(30)>>BW(4,0.7,2)>>STALTA(2,80)".
Type: double
For which value on the filtered waveform is a pick detected. Default is 3.
Type: double
The value the filtered waveform must reach to enable a detection again. Default is 1.5.
Type: double
The time correction applied to a detected pick. Default is -0.8.
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show version information
Use alternative configuration file. When this option is used the loading of all stages is disabled. Only the given configuration file is parsed and used. To use another name for the configuration create a symbolic link of the application or copy it, eg scautopick -> scautopick2.
Load given plugins.
Run as daemon. This means the application will fork itself and doesn't need to be started with &.
Enable/disable self-shutdown because a master module shutdown. This only works when messaging is enabled and the master module sends a shutdown message (enabled with --start-stop-msg for the master module).
Sets the name of the master-module used for auto-shutdown. This is the application name of the module actually started. If symlinks are used then it is the name of the symlinked application.
Sets the name of the master-username of the messaging used for auto-shutdown. If "shutdown-master-module" is given as well this parameter is ignored.
Verbosity level [0..4]. 0:quiet, 1:error, 2:warning, 3:info, 4:debug
Increase verbosity level (may be repeated, eg. -vv)
Quiet mode: no logging output
Limits the logging to a certain component. This option can be given more than once.
Use syslog logging back end. The output usually goes to /var/lib/messages.
Path to lock file.
Send log output to stdout.
Debug mode: --verbosity=4 --console=1
Use alternative log file.
Overrides configuration parameter connection.username.
Overrides configuration parameter connection.server.
Overrides configuration parameter connection.timeout.
Overrides configuration parameter connection.primaryGroup.
A group to subscribe to. This option can be given more than once.
Overrides configuration parameter connection.encoding.
Sets sending of a start- and a stop message.
List all supported database drivers.
The database connection string, format: service://user:pwd@host/database. "service" is the name of the database driver which can be queried with "--db-driver-list".
The configmodule to use.
Load the inventory database from a given XML file.
Do not use the database at all
List all supported record stream drivers
The recordstream source URL, format: [service://]location[#type]. "service" is the name of the recordstream driver which can be queried with "--record-driver-list". If "service" is not given "file://" is used.
Specify a file as record source.
Specify a type for the records being read.
Do not connect to a messaging server and do not use the database.
Enables or disables computation of amplitudes.
Runs the picker as usual but does not send any messages. This can be useful to test the picker within a running system.
Dumps the current configuration and exits. Station configuration is only read if the picker connects to the messaging and the database. In offline mode it will only dump the application specific setting unless a station.conf file is provided.
Overrides configuration parameter timeCorrection.
Overrides configuration parameter ringBufferSize.
Overrides configuration parameter thresholds.triggerOn.
Overrides configuration parameter thresholds.triggerOff.
Overrides configuration parameter thresholds.deadTime.
Overrides configuration parameter thresholds.amplMaxTimeWindow.
Overrides configuration parameter thresholds.minAmplOffset.
Overrides configuration parameter thresholds.maxGapLength.
Overrides configuration parameter gapInterpolation.
Overrides configuration parameter useAllStreams.
Overrides configuration parameter sendDetections.