To provide PKI Operators with basic knowledge and technical understanding on Data Authentication, Data Surety, Public Key Infrastructure (PKI) concepts and terminology. The Operators will learn how to generate key pairs, how to submit certificate requests and how to retrieve and install certificates for radionuclide stations using RSSI software and for waveform stations using SSI software and Guralp DM24SxEAM and Affinity, Nanometrics Europa-T and Centaur and Kinemetrics Q330MPlus digitizers.
Agenda:
• Basic Information on Data Authentication.
• Public Key Infrastructure (PKI) Concepts and Terminology.
• Data Surety.
• PKI Portal introduction.
• Demonstration.
• Generate key pairs and submit certificate request.
• Retrieve and install certificates for:
• SSI/RSSI software
• Guralp CMG-DM24 and Affinity, Nanometrics Europa-T and Centaur and Kinemetrics Q330MPlus digitizers.
Objectives:
The workshop will explore advancements and innovations in the application of High-Performance Computing (HPC) & Machine Learning (ML) in monitoring nuclear explosions across land, ocean, and atmosphere utilizing technologies from the seismic, hydroacoustic, infrasound and radionuclide domains with the support of atmospheric transport modelling.
Agenda
SHI HPC methods and algorithms applied to civil and scientific applications
To provide the IMS station operators with the required knowledge and technical understanding of SAUNA III noble gas monitoring systems in order to perform routine operations and maintenance tasks.
Introduction to the Noble Gas System
SAUNA III Detector System Principles
Preventive Maintenance
Hands-on Troubleshooting
Submission of Nominations
Nominations together with the registration forms should be submitted only through established official channels (their Permanent Missions to the Preparatory Commission for the CTBTO or Ministries of Foreign Affairs) to the PTS point of contact above, not later than 28 February 2026.
However, pending the official nomination, participants may fax the registration form, upon approval by a director of the institution, to allow timely travel and accommodation arrangements by the PTS.
-To provide a comprehensive understanding of the roles of National Data Centres within the verification regime. -To focus on establishing and enhancing the capabilities of National Data Centres. -To equip participants with the necessary knowledge and skills for accessing and utilizing International Monitoring System (IMS) data and International Data Centre (IDC) products. -To offer practical experience and training in analyzing IMS data, ensuring participants are proficient in handling SHI data. -To explore and promote the use of IMS data and IDC products for civil and scientific applications. This includes discussions on how data from the CTBT verification system can be used for environmental monitoring, disaster prevention/recovery, and academic research. -To harmonize the approaches of States' Signatories in Africa to participate in and benefit from the CTBT verification system.
Training Objective
To enhance and develop station operators’ knowledge and skills regarding the operational and maintenance aspects of radionuclide stations using the Cinderella.G2 system.
I. Introduction and General Concept of the Cinderella System and IMS Operational Requirements
II. Routine Operations and Reporting
III. Other Operations
IV. Unscheduled Operations and Station Management Procedures
Objectives
This online technical meeting allows States Signatories to learn and exchange information about recent software development activities at the IDC and upcoming efforts, with a focus on waveform technologies.
Several projects are ongoing to improve the software in use at the IDC, as well as NDC software shared with States Signatories via NDC in a Box.
The previous format of a 2-days in-person technical meeting is changed this year into an online meeting recentering the topics on presenting what is of the highest impact for State Signatories and National Data Centres.
This online technical meeting will focus on:
Participation Profile
1. Practice the whole workflow of event characterization from initial alert to national reporting. 2. Demonstrate the utility of IMS data, national data, and fusion methods in a verification context. 3. Strengthen regional cooperation and data exchange between NDCs. 4. To harmonize the approaches of States' Signatories participating in and benefiting from the CTBT verification system.
To equip IMS infrasound station operators with the knowledge and technical skills required to operate, maintain, and manage stations utilizing Nanometrics Centaur and Quanterra Q330M+ digitizers.
Upon completion, trainees will be able to perform essential operational, reporting, and configuration tasks efficiently; conduct effective State-of-Health (SOH) and data quality monitoring; and apply systematic approaches to equipment and software configuration, troubleshooting, and maintenance.
Specific Learning Outcomes
Trainees will be able to:
Objectives:
Participation Profile
The objective of the workshop is to support the CTBTO verification regime by creating a forum for scientific knowledge exchange on four main themes and their topics:
Theme 1: Hydroacoustic monitoring networks in support of the CTBT International Monitoring System
1.1 The CTBTO Hydroacoustic Monitoring Network: Status, challenges, and needs
1.2 Engineering and technological advancements for hydroacoustic monitoring networks in marine environments
1.3 Station installation, maintenance, and major underwater repair strategies in challenging marine environments
1.4 Sustainability, reliability, and long-term performance of hydroacoustic monitoring networks
1.5 End-to-end calibration and quality assurance of hydroacoustic monitoring stations under field conditions
1.6 Protection, inspection, and fault detection strategies for subsea cables and sensors supporting hydroacoustic monitoring stations
1.7 Potential synergies with other subsea monitoring networks and civil and scientific applications
Theme 2: Emerging technologies and future concepts for next-generation hydroacoustic monitoring stations in support of the CTBT International Monitoring System
2.1 Station design concepts, structural and material innovations, and hydrophone technologies for next-generation hydroacoustic monitoring
2.2 Distributed Acoustic Sensing (DAS) and fiber-optic technologies for hydroacoustic monitoring
2.3 Smart subsea cable concepts and multi-functional sensing technologies
Theme 3: Data analysis and signal processing methods for CTBT verification purposes and civil and scientific applications
3.1 Identification of signal source-type (seismological-phase classification)
3.2 Improved event-location algorithms
3.3 Advanced signal processing methods for characterization of event properties (e.g. deduction of event depth from T-phase spectral contents)
Theme 4: Modelling for long-range hydroacoustic signal propagation
4.1 Three-dimensional acoustic propagation modelling.
4.2 Crust-water coupling near coastal seismometers
As always, CTBT-related contributions on additional relevant topics are also welcome.
Staying Up to Date on ETA and SPS Procedures and Developments;
Join us for an informative webinar where you will be updated on the latest status of procedures for Expert Technical Analysis (ETA) and Special Studies (SPS), as well as the ongoing work to gather the methods and software at the IDC to be used in such Special Analysis.
Attend this webinar to:
1. Stay informed about the latest procedures and requirements for ETA and Special Studies
2. Understand the current state of developments and their impact
3. Engage with our experts and ask questions in a live Q&A session
4. Get involved in shaping the content for the next live workshop
Objectives:
Participation Profile
The workshop is targeted at scientific experts, NDC technical staff and analysts, and prospective scholars who seek a common goal in building a capacity for scientific knowledge exchange to strengthen the Atmospheric Transport Modelling community affiliated to CTBTO’s verification regime. The workshop’s objectives are:
Topics of interest:
CTBT-related contributions on additional relevant topics are welcome.
The workshop will:
Station Operators, local operators, NDC staff, contractors and equipment suppliers involved in the operation and maintenance of the IMS.
The main themes of the O&M 2026 Workshop will be:
The 2026 National Data Centre (NDC) Workshop is being organized by the Provisional Technical Secretariat (PTS) of the Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) in cooperation with the Government of Uruguay. The NDC workshop provides an opportunity for participants from State Signatory NDCs to meet and discuss their activities and share experiences accessing IMS data, using IDC products, and operating as an NDC. The objectives of the workshop are: 1. Provide an environment for NDC experts to share their experiences in fulfilling their verification responsibilities; 2. Provide NDC feedback to the PTS on all aspects of the data, products, services and support provided to NDCs; under this objective, particular emphasis will be put on • NDC contributions to Performance Monitoring and Testing (through NDC Preparedness Exercises, or NPEs, and other means); • Discussions on NDC involvement in the IDC Progressive Commissioning; • Discussion of recent and ongoing IDC projects. 3. Review NDC recommendations; 4. The progress and initial results of the NDC Preparedness Exercise 2026 (NPE26) will be presented and discussed, including analysis of the NPE26 event using IMS Data and other data obtained by national means. 5. Contributions on the interaction between NDCs and research and development-related topics will be discussed. 6. Discuss progress on the NDCs4ALL initiative. 7. Discuss challenges faced by NDCs.
