scevtstreams

Extracts stream information and time windows from an event.

Description

scevtstreams reads all picks of an event and determines the time window between the first pick and the last pick. In addition a symmetric or an asymmetric time margin is added to this time window. It writes the streams that are picked including the determined time window for the event to stdout. This tool gives appropriate input information for scart, fdsnws and caps (Common Acquisition Protocol Server by gempa GmbH) to dump waveforms from archives based on event data.

Output Format

The generated list contains start and end time as well as stream information.

Generic:

starttime;endtime;streamID

Example:

2019-07-17 02:00:00;2019-07-17 02:10:00;GR.CLL..BHZ

Examples

1. Get the time windows for an event in the database:

   scevtstreams -E gfz2012abcd -d mysql://sysop:sysop@localhost/seiscomp
   

2. Get the asymmetric time windows for an event in an XML file. The time window starts 120 s before the first pick and ends 500 s after the last pick:

   scevtstreams -E gfz2012abcd -i event.xml -m 120,500
   

3. Create a playback of an event with a time window of 5 minutes data and sort the records by end time:

   scevtstreams -E gfz2012abcd -d mysql://sysop:sysop@localhost/seiscomp -m 300 |\
   scart -dsvE --list - ~/seiscomp/acquisition/archive > gfz2012abcd-sorted.mseed
   

4. Download waveforms from Arclink and import into local archive. Include all stations from the contributing networks:

   scevtstreams -E gfz2012abcd -d mysql://sysop:sysop@localhost/seiscomp -m 300 -R --all-stations |\
   scart --list - ./my-archive
   

5. Create lists compatible with fdsnws or caps:

   scevtstreams -E gfz2012abcd -i event.xml -m 120,500 --fdsnws
   scevtstreams -E gfz2012abcd -i event.xml -m 120,500 --caps
   

Configuration

etc/defaults/global.cfg

etc/defaults/scevtstreams.cfg

etc/global.cfg

etc/scevtstreams.cfg

~/.seiscomp/global.cfg

~/.seiscomp/scevtstreams.cfg

scevtstreams inherits global options.

Command-line

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, eg 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

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.

--shutdown-master-username arg

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

--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

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

-s, --syslog

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

-l, --lockfile arg

Path to lock file.

--console arg

Send log output to stdout.

--debug

Debug mode: –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 configmodule to use.

--inventory-db arg

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

--db-disable

Do not use the database at all

Input

-i, --input arg

Input XML file name. Overwrites reading from database.

-f, --format arg

Input format to use (xml [default], zxml (zipped xml), binary). Only relevant with –input.

Dump

-E, --event arg

Specifies the event id.

-m, --margin arg

Time margin around the picked time window, default is 300. Added before the first and after the last pick, respectively. Use 2 comma-separted values (before,after) for asymmetric margins, e.g. 120,300.

-S, --streams arg

Comma separated list of streams per station to add, e.g. BH,SH,HH.

-C, --all-components arg

Specifies whether to use all components (1) or just the picked ones (0). Default: 1.

-L, --all-locations arg

Specifies whether to use all location codes (1) or just the picked ones (0). Default: 1.

--all-stations flag

Dump all stations from the same network. If unused, just stations with picks are dumped.

--all-networks flag

Dump all networks. If unused, just networks with picks are dumped. This option implies all-stations, all-locations, all-streams, all-components and will only provide the time window.

-R, --resolve-wildcards flag

If all components are used, use inventory to resolve stream components instead of using ‘?’ (important when Arclink should be used).

--caps flag

Dump in capstool format (Common Acquisition Protocol Server by gempa GmbH)

--fdsnws flag

Dump in FDSN dataselect webservice POST format