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The continuous seismic waveform data from the Virtual European
Broadband Seismograph Network (VEBSN) are monitored at ORFEUS
Data Center (ODC) in various ways to ensure a high quality of
waveform data and metadata. The following monitors are in place:
- Daily QC statistics
: Browse basic quality data (e.g. standard deviation, number of gaps, data completeness) by date and channel.
The definitions of the quality parameters in use are defined here
The software is based on 'msi' and 'libmseed' (Chad Trabant; IRIS DMC) and available here.
The modifications permits a calculation of the statistical parameters exactly within the specified time window.
- Data latency:
Latencies for VEBSN stations.
- Power Spectral Density (PSD) versus time:
this near real-time monitor displays the PSD of the background noise as function of time,
for selected frequencies. Also the energy in two frequency bands is shown,
as well as the lowest PSD level at each frequency.
the details of our procedure.
this near real-time monitor
displays the distribution of the PSD through a
Probability Density Function (PDF).
For further information please contact
or any other ORFEUS staff member.
May 17, 2013