[STT50-P06] The progress on the waveform data quality control of IGP DMC, China National Seismological Network
Keywords:waveform data qulity control, Data Management Center (DMC) at IGP, CEA
The DMC at Institute of Geophysics (IGP), CEA was established at the end of 2007. IGP DMC now receives and archives waveform data in real-time. The technical system of IGP DMC is designed to carry out data management, processing and service. We developed and integrated a hardware system with high-performance servers, large-capacity disc arrays for on-line data, NAS for near-line backup data and other facilities, as well as software packages for real-time waveform data receiving, storage, quality control, processing and service. In nearly 10 years, The DMC has supplied about PBytes-level waveform data to over 500 researches of more than 85 academic institutions. According to incomplete statistics, over 300 papers have been published in professional journals, in which 200 were indexed by SCI.
For the purpose of promoting the ability and level of seismic station operation and maintenance, ensuring waveform data and metadata quality, at the end of 2016, IGP DMC played a leading role in the work of research and technical system construction on the waveform data quality control. Mainly based on the MUSTANG of IRIS DMC, we focus on the abnormal information detection related with network communication, instrument (seismometer or datalogger) and power supply, et al., abnormal information push to the station operation staff, statistical reports and ranking charts to the administrative department. By means of cloud computing and artificial intelligence, the system is expected to be a modular, automatic, on-line system in near real time. The data and metric access is performed via web services with multivariate form and the superior visuality. Up to now, the initial construction has been almost completed, including index of max gap, max overlap, num gaps, num overlaps, num spikes, orientation check, PDF and rms of PSD.