Vienna, VIC
  07 Sep 2026 - 09 Sep 2026

Objectives:

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.

 

Further details:

Language: English
Application Deadline: 03 Apr 2026 23:59 GMT
Funding Application Deadline: 03 Apr 2026 23:59 GMT
Abstract Submission Deadline: 03 Apr 2026 23:59 GMT

Location:

Vienna International Centre, Vienna, Austria (the workshop can be transformed to online format in case of unforeseen contingency).

Financial Information (for PTS-funded participants only):

Financial support may be available to a limited number of participants. Such assistance must be requested at the time of registration (by selecting the relevant box during online registration).

Financial support will be considered only for those applicants who have registered and submitted an abstract that will be accepted no later than 3 April 2026. Participants are strongly encouraged to first seek travel and participation funds from non-CTBTO sources.

In accordance with the Staff regulations and rules and Administrative Directives, the PTS will provide the following:

  • A Daily Subsistence Allowance (DSA) that is sufficient to cover the related expenses during the workshop program will be paid on the first day of the workshops to the participants;
  • The PTS travel agent will reserve, issue and forward the flight ticket to the participants for the most direct and economic route;
  • Funded participants are not allowed to purchase their own tickets unless, under exceptional circumstances, be authorized to do so and only if this proves to be most cost efficient for the PTS;
  • The PTS will book a hotel and cover the costs for the accommodation; and
  • Health insurance will be provided that covers the duration of the workshop.

Other Pertinent Information:

  • Presentations: PowerPoint presentations shall not exceed 20 minutes. Posters should be in either A0 or B1 portrait format.
  • Visas: Participants should apply for visas, if needed, at the corresponding consular office upon receipt of an acceptance Note Verbale from the Secretariat, in order to ensure timely processing.
  • Health/Accident Insurance: It is strongly recommended that, prior to departure, all participants should acquire health and accident insurance for the duration of the workshop.

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