lambda

Array processing GUI

Description

Module Configuration

etc/defaults/global.cfg

etc/defaults/lambda.cfg

etc/global.cfg

etc/lambda.cfg

~/.seiscomp/global.cfg

~/.seiscomp/lambda.cfg

lambda inherits global options.

Note

Modules/plugins may require a license file. The default path to license files is @DATADIR@/licenses/ which can be overridden by global configuration of the parameter gempa.licensePath. Example:

gempa.licensePath = @CONFIGDIR@/licenses

arrays

Type: list:string

Array profile names referring to the defined arrays. The actual arrays are defined in the arrays section.

fdsnwsUrl

Type: string

URL to FDNSWS for fetching event parameters.

phases

Type: list:string

Available phase names for picking.

pois

Type: file

Full path to file containing points of interest (POI) which can be selected as reference points. The file contains per line the parameters of one POI. The parameters separated by semicolon and their formats are:

latitude [degree];longitude [degree];depth [km]; title [string];type [string];path to image file [string];time (optional) [%F %T]

connection.locationGroup

Default: LOCATION

Type: string

Location group where origins will be sent to.

database.disable

Default: false

Type: boolean

Disable database at all.

Note

grid.* General grid parameters applied to all grids.

grid.gradient

Default: 0:00000000,0.2:0000ff80,0.4:00ffff,0.6:00ff00,0.8:ffff00,1:ff0000

Type: gradient

The color gradient used to color the ATF grid.

grid.shading

Default: true

Type: boolean

Set the shading of 2D color plots plot such as F-K plots.

Note

proc.* Parameters for controlling the data processing. Used by different methods, e.g. slowness/wavenumber analysis or backprojection.

Note

proc.plot.* Control plotting of parameters in the result parameter plot.

proc.plot.channelCount

Default: true

Type: boolean

Plot the channel count graph in the processing window.

proc.plot.backazimuth

Default: true

Type: boolean

Plot the back azimuth graph in the processing window.

proc.plot.semblance

Default: true

Type: boolean

Plot the semblance graph in the processing window.

proc.plot.velocity

Default: true

Type: boolean

Plot the velocity graph in the processing window.

proc.plot.detection

Default: true

Type: boolean

Plot the detection graph in the processing window.

Note

loc.* Parameters for locating by backprojection on a location grid.

loc.depth

Unit: km

Type: double

Source depth.

loc.phase

Type: string

Phase hint. Used to extract the respective traveltime tables.

Note

pmcc.* Parameters controlling the PMCC analysis.

pmcc.exportScript

Type: file

A script called after exporting a PMCC family to XML. The only parameter passed to the script is the XML file.

pmcc.exportPath

Type: directory

The path used by default to export PMCC families to. If the path does not exist, it will be created.

spectrogram.windowLength

Default: 2.0

Unit: s

Type: double

The length in seconds of the data time range which for which the spectrum is computed. The data time range is centered around each processing step.

spectrogram.windowOverlap

Default: 0.5

Unit: ratio

Type: double

The processing time step expressed as ratio with respect to the data window length. The default values result in a time step of one second.

spectrogram.taperLength

Default: 0.05

Unit: ratio

Type: double

The sinus taper length expressed as ratio with respect to the data window length applied at either end of the data. The default values result in a taper length of 0.1 second.

spectrogram.normalize

Default: false

Type: boolean

Whether to normalize the rendered spectrogram with respect to the amplitudes range per processing step or not.

spectrogram.logScale

Default: false

Type: boolean

Whether to use logarithmic scale or not for the frequency range.

spectrogram.smoothTransform

Default: false

Type: boolean

Whether to render the spectrogram with interpolated colors on screen between processing steps or not.

spectrogram.lowerBound

Default: -15

Type: int

The spectrogram colors are being generated from the logarithm to base 10 of the power spectrum of the input data converted to ground motion (log10(real*real+imag*imag)). This parameter declares the lower bound which is mapped to the first color of the color gradient unless normalization is enabled.

spectrogram.gradient

Default: 0:00000000,0.2:0000ff,0.4:00ffff,0.6:00ff00,0.8:ffff00,1:ff0000

Type: gradient

The color gradient used to color spectrogram. The color range is actually not important and will be scaled to the minimum and maximum amplitudes (normalize=true) or to the given lower and upper bound.

Note

arrays.* Configure one ore more arrays.

Note

arrays.$name.* Define the array. $name is a placeholder for the name to be used and needs to be added to arrays to become active.

arrays = a,b
arrays.a.value1 = ...
arrays.b.value1 = ...
# c is not active because it has not been added
# to the list of arrays
arrays.c.value1 = ...

arrays.$name.channels

Type: list:string

Defines a list of channels to use. E.g.

CX.PB01..HHZ, CX.PB02..HHZ, CX.PB03..HHZ

or

CX.PB01.:00.HHZ, CX.PB02.10:20:30, CX.PB03..HHZ, CX.PB04..

The latter gives preference to the first occurrence of listed parameters separated by ":". Here the list contains location codes.

Note

profiles.* Processing profiles

profiles.base

Type: list:string

List of activated base processing profiles. A profile starting with @ (at) will be set as default profile and the @ character will be stripped off.

profiles.slownessgrid

Type: list:string

List of activated grid profiles. A profile starting with @ (at) will be set as default profile and the @ character will be stripped off.

profiles.backprojection

Type: list:string

List of activated backprojection profiles. A profile starting with @ (at) will be set as default profile and the @ character will be stripped off.

profiles.pmcc

Type: list:string

List of activated pmcc profiles. A profile starting with @ (at) will be set as default profile and the @ character will be stripped off.

Note

profiles.base.* Base processing parameters such as filters and time windows.

Note

profiles.base.$name.* $name is a placeholder for the name to be used and needs to be added to profiles.base to become active.

profiles.base = a,b
profiles.base.a.value1 = ...
profiles.base.b.value1 = ...
# c is not active because it has not been added
# to the list of profiles.base
profiles.base.c.value1 = ...

profiles.base.$name.phaseHint

Default: P

Type: string

The phaseHint of the created pick.

profiles.base.$name.targetSampleRate

Default: 200

Unit: sps

Type: double

The common sample rate for all array elements. Channels that do not match this sample rate will be resampled.

profiles.base.$name.maximumChannelDelay

Default: 60

Unit: s

Type: double

The maximum channel delay allowed before a particular channel is reset and processing is continued with all remaining channels. This value is always with respect to the latest sample of each channel in the array.

profiles.base.$name.minimumFrequency

Default: 0

Unit: Hz

Type: double

The lower corner frequency of the filter. If lower or equal to zero then it is disabled and the resulting filter is a lo-pass filter. If both frequencies are disabled then filtering will be disabled.

profiles.base.$name.maximumFrequency

Default: 0

Unit: Hz

Type: double

The upper corner frequency of the filter. If lower or equal to zero then it is disabled and the resulting filter is a hi-pass filter. If both frequencies are disabled then filtering will be disabled.

profiles.base.$name.frequencySteps

Default: 1

Type: int

The number of frequencies to be generated between minimumFrequency and maximumFrequency. This feature is currently not supported and this parameter will be ignored.

profiles.base.$name.frequencyOverlap

Default: 0

Type: double

Range: 0:1

Relative overlap of frequency bands.

profiles.base.$name.timeWindow

Default: 2

Unit: s

Type: double

The processing time window.

profiles.base.$name.timeStep

Default: 1

Unit: s

Type: double

The processing time step. After a time window has been processed, the window is shifted by this value.

profiles.base.$name.noiseWindow

Default: 4

Unit: s

Type: double

The noise window added before the detection, e.g. to calculate the SNR.

profiles.base.$name.semblanceTriggerOn

Default: 0.7

Type: double

The value that must be exceeded to activate triggering.

profiles.base.$name.semblanceTriggerOff

Default: 0.7

Type: double

Once the semblance trigger is activated, the maximum semblance is collected until the value drops below this value. The maximum between on and off is used to find the pick on the beam.

profiles.base.$name.minimumSNR

Default: 10

Type: double

Minimum SNR to declare a pick on a beam trace.

profiles.base.$name.deadMargin

Default: 10

Unit: %

Type: double

Margin in percent of the data time window currently processed. This time window covers noise and signal (noiseWindow + timeWindow). If the pick falls inside this margin (left or right side) then it is discarded.

profiles.base.$name.stripBadChannels

Default: false

Type: boolean

Remove channels with low quality. Read the documenatation on waveform quality control for details.

profiles.base.$name.method

Default: "beam packing"

Type: string

Values: beam packing,FK

The beam forming method.

Reminder: Value containing white space must be enclosed by double quotes.

profiles.base.$name.grid.extent

Default: 50x50

Unit: nodes

Type: string

Number of grid nodes of the processing grid in either direction.

Note

profiles.slownessgrid.* Processing parameters for the slowness grid to detect events within a specific slowness range.

Note

profiles.slownessgrid.$name.* $name is a placeholder for the name to be used.

profiles.slownessgrid.$name.grid.unit

Default: s/deg

Type: string

Values: s/deg,s/km,k

Defines the units of the grid ranges. The following units are allowed: "s/deg", "s/km" and "k".

profiles.slownessgrid.$name.grid.rect

Default: 100x100-50-50

Type: string

Defines the rectangular grid ranges in either direction. The supported formats are:

"wxh[+-]x[+-]y" with

w / h: width / height

x / y: horizontal / vertical offset

or

"[+-]x1[+-]y1[+-]x2[+-]y2".

defining explicitely the upper and the lower values in horizontal and vertical direction, respectively.

Note

profiles.backprojection.* Processing parameters for the backprojection to detect events in a geographic search region.

Note

profiles.backprojection.$name.* $name is a placeholder for the name to be used.

profiles.backprojection.$name.rect

Type: string

Defines the rectangular geographical search region. The suported formats are:

"hxw[+-]lat[+-]lon" with

h / w: height / width

lat / lon: latitude / longitude offset

or

"[+-]lat1[+-]lon1[+-]lat2[+-]lon2".

defining explicitely the lower (lat1/lon1) and the upper (lat2/lon2) latitude and longitude values of the region.

profiles.backprojection.$name.depth

Default: 10

Unit: km

Type: double

Defines the depth of the grid layer to be processed. This is in particular important when computing travel times to each grid node.

Note

profiles.backprojection.$name.ttt.* Travel time table specific settings.

profiles.backprojection.$name.ttt.type

Type: string

Defines the travel time table interface type such as "LOCSAT", "libtau" or "homogeneous".

profiles.backprojection.$name.ttt.model

Type: string

Defines the travel time table to be used with respect to the configured type.

Note

profiles.pmcc.* PMCC processing parameters

Note

profiles.pmcc.$name.* $name is a placeholder for the name to be used.

profiles.pmcc.$name.consistencyThreshold

Default: 0.1

Unit: s

Type: float

The consistency threshold for a subarray to be able to grow:

consistency <= consistencyThreshold.

profiles.pmcc.$name.minimumChannels

Default: 0

Type: int

Pixel: The minimum number of channels in a subarray to form a pixel.

profiles.pmcc.$name.minimumSemblance

Default: 0

Type: int

Pixel: The minimum semblance of channels to be reached in a subarray to form a pixel.

profiles.pmcc.$name.minimumPixels

Default: 6

Type: int

Families: The minimum number of pixels to form a family.

profiles.pmcc.$name.timeDifference

Default: 1.5

Unit: s

Type: float

Families: Difference in time between 2 pixels to be considered for forming a family.

profiles.pmcc.$name.backazimuthDifference

Default: 15.0

Unit: deg

Type: float

Families: Difference in backazimuth between 2 pixels to be considered for forming a family.

profiles.pmcc.$name.slownessDifference

Default: 2.0

Unit: s/deg

Type: float

Families: Difference in slowness between 2 pixels to be considered for forming a family.

profiles.pmcc.$name.maxThreads

Default: 1

Type: integer

Defines the maximum number of threads to use when computing multiple frequency bands. This value is effectively limited to the number of configured frequency bands.

Command-Line Options

lambda [options]

Generic

-h, --help

Show help message.

-V, --version

Show version information.

--config-file arg

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. Example: scautopick -> scautopick2.

--plugins arg

Load given plugins.

-D, --daemon

Run as daemon. This means the application will fork itself and doesn’t need to be started with &.

--auto-shutdown arg

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).

--shutdown-master-module arg

Set 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.

--shutdown-master-username arg

Set 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.

Messaging

-u, --user arg

Overrides configuration parameter connection.username.

-H, --host arg

Overrides configuration parameter connection.server.

-t, --timeout arg

Overrides configuration parameter connection.timeout.

-g, --primary-group arg

Overrides configuration parameter connection.primaryGroup.

-S, --subscribe-group arg

A group to subscribe to. This option can be given more than once.

--start-stop-msg arg

Default: 0

Set sending of a start and a stop message.

Verbosity

--verbosity arg

Verbosity level [0..4]. 0:quiet, 1:error, 2:warning, 3:info, 4:debug.

-v, --v

Increase verbosity level (may be repeated, eg. -vv).

-q, --quiet

Quiet mode: no logging output.

--component arg

Limit the logging to a certain component. This option can be given more than once.

-s, --syslog

Use syslog logging backend. The output usually goes to /var/lib/messages.

-l, --lockfile arg

Path to lock file.

--console arg

Send log output to stdout.

--debug

Execute in debug mode. Equivalent to --verbosity=4 --console=1 .

--log-file arg

Use alternative log file.

Database

--db-driver-list

List all supported database drivers.

-d, --database arg

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".

--config-module arg

The config module to use.

--inventory-db arg

Load the inventory from the given database or file, format: [service://]location .

--db-disable flag

Overrides configuration parameter database.disable.

Records

--record-driver-list

List all supported record stream drivers.

-I, --record-url arg

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.

--record-file arg

Specify a file as record source.

--record-type arg

Specify a type for the records being read.

Cities

--city-xml arg

The path to the cities XML file. This overrides the default paths. Compare with the global parameter "citiesXML".

User interface

-F, --full-screen

Start the application filling the entire screen. This only works with GUI applications.

-N, --non-interactive

Use non-interactive presentation mode. This only works with GUI applications.

Mode

--dump-config

Dump the configuration and exit.