Technical Meeting on the IDC Validation and Acceptance Test Plan. (Online) Time: 14:00 to 18:00 CET

  Online, Austria
  13 Oct 2020 - 16 Oct 2020

The objective of this technical meeting is to continue the process of completing the IDC Validation and Acceptance Test Plan (VATP). The focus for this particular meeting will be on reviewing the changes that were introduced following the June 2019 meeting and to continue improving the content of the individual tests. A summary of the outcome from this meeting will be presented to WGB-56.

Participant profile:

The meeting is aimed towards scientists, engineers and other persons who have technical expertise in one of the four IMS technologies, the functions of the IDC and in performance monitoring and testing. The participants are expected to provide their technical input to the VATP and related activities such as the 2021 experiment.

States Signatories are expected to nominate experts who will provide substantive inputs to these topics for discussion.

Information will be available on the Expert Communication System ECS prior to the meeting. Experts are expected to review and evaluate the latest version of the VATP and all other related material.

The Provisional Technical Secretariat may solicit presentations from participants on the topics of the meeting.

Expert meeting on Advances in Waveform Processing and Special Studies

  Daejeon, Republic of Korea
  19 Oct 2020 - 23 Oct 2020

The PTS is actively pursuing initiatives to improve the performance of the IDC waveform automatic processing pipeline. Some active research and development areas are :

  • Further development of an integrated waveform quality control module and its application in all stages of the automatic processing pipeline
  • Evaluating new methods that can improve the pipeline performance in processing aftershock sequences and recurring events.
  • Evaluating and integrating new detectors and associators into the IDC processing pipeline.
  • Tuning components of IDC pipeline processing in order to optimize their performance.
  • Advances in event screening.
  • Evaluating global seismic and/or hydro-acoustic three-dimensional travel time models and optimizing location capabilities.
  • The objective of this technical expert meeting is twofold:

  • Part of the meeting will be dedicated to exploring advances to waveform processing that may improve the IDC waveform pipeline processing, including tools and methodologies for testing and validation ;
  • Part of the meeting will be dedicated to discussing waveform Special Studies and Expert Technical Analysis – procedures, methods, use of data and content of UEB and SRMR.

    Meeting participants are welcome to contribute to the technical meeting by making a brief presentation related to one of the topics above.

    3rd Expert Meeting on Special Studies and ETA with RN and ATM Methods

      Daejeon, Republic of Korea
      19 Oct 2020 - 23 Oct 2020

    Special Studies provide in-depth, technical reviews by expert analysis of data from the International Monitoring System (IMS) to improve the estimated values for the standard signal and event parameters resulting in an Updated Radionuclide Report (URR).

    The purpose of the Expert Technical Analysis (ETA) of IMS data and other relevant data provided by the requesting State Party is to assist the State Party concerned to identify the source of specific events. The output is the State Requested Methods Report (SRMR).

    URR and SRMR need to be seen in the context of the standard products they are building on, specifically the Standard Screened Radionuclide Event Bulletin (SSREB). Beyond its current implementation it may contain among others the use of atmospheric transport modelling results to combine field of regard information from all radionuclide samples sharing a possible common source region related to a single event. If available, information derived from isotopic ratios is included and may be used to confine the field of regard. The National Screened Radionuclide Event Bulletin (NSREB) was introduced and needs to be developed.

    The objectives of this technical expert meeting are:

  • Review methods that may be suited for Special Studies and ETA;
  • Discuss the possible content of the SSREB, NSREB, URR and SRMR;
  • Explore the potential use of various non-IMS data for SRMR;
  • Advance common understanding of procedures and methods to be developed for the SSREB, URR, SRMR and NDC responsibilities.

    Meeting participants are welcome to contribute to the technical meeting by making a brief presentation related to one of the Agenda topics.

    NDC Capacity Building Workshop and Regional Seismic Travel Time (RSTT) in combination with Data Sharing and Integration Training for the Middle East and South Asia (MESA) region

      Muscat, Oman
      15 Nov 2020 - 19 Nov 2020

    The objectives for the NDC Capacity Building Workshop are:
    • to strengthen participants’ knowledge of the Comprehensive Nuclear-Test-Ban Treaty (CTBT) and the work of the Preparatory Commission;
    • to further build up the national and regional capacities in implementing the Treaty and participating in the verification regime;
    • to promote the civil and scientific application of verification technologies.

    The additional objectives for the RSTT and Data Sharing and Integration Training are:
    • to recognize the importance of obtaining better regional locations for future tomographic studies;
    • to understand and learn how the RSTT model can help regional networks achieve more precise event locations;
    • to learn how RSTT can be interfaced with current locators used in daily earthquake location procedures;
    • to demonstrate the importance of Ground-Truth (GT) event locations in defining regional seismic velocity structures and models;
    • to share data and to develop the Regional Seismic Travel Time Model (RSTT) in Middle East and South Asia (MESA) through the acquisition of GT seismic locations;
    • to integrate local or regional non-IMS data with the NDC-in-a-Box software for event location;
    • to stimulate regional cooperation in data exchange through the NDCs and/or regional network operators.