Description
E-poster session with display of each e-poster on an assigned touchscreen
Continued sustainment of the International Monitoring System (IMS) network is of critical importance to the longer term viability of the Comprehensive Nuclear-Test-Ban Treaty. Increasing global costs and budget constraints may limit the level of future investment in the maintenance and operational costs of the IMS. To mitigate this financial restriction, individual sub-systems of radionuclide...
Although more than 90% of the International Monitoring System (IMS), operated by the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) has been installed, over the next decade, a large proportion of IMS stations will reach the milestone of 20+ years post-certification with continuous operation. Thus, in order to develop a strategy for the long term sustainment of the IMS, the expected...
Collaborating with station operators and representatives from National Data Centres has been an important part in developing a sustainment strategy for the International Monitoring System (IMS), operated by the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO). A questionnaire was distributed to all station operators and representatives from National Data Centres. The questionnaire...
This study provides comprehensive documentation and detailed information on Funvisis' extensive experience in managing AS117 and AS118 for over two decades, as part of Venezuela's commitment to the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO). This article presents a robust methodology based on thorough records of both preventive and corrective maintenance carried out at these...
Since 2011, Bangladesh has been hosting an International Monitoring System (IMS) auxiliary seismic station, AS7 (BRDH), in Bariadhala, Chattogram. The station is located atop a hill. Erosion of the sediments and subsidence occurred on the flanks of the hills around the seismic vault and the building. As a consequence, the floor of the building began to subside as well, fractures and cracks...
The establishment of the Comprehensive Nuclear-Test-Ban (CTBT) International Monitoring System (IMS) network has progressed at an impressive pace in the last 25 years: to date, 90% of the network has been built and is operational. While major efforts are made by the Provisional Technical Secretariat (PTS) to complete the establishment of the network, the challenge of sustaining the IMS...
The Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) plays a pivotal role in global nuclear non-proliferation efforts through its extensive monitoring systems designed to detect natural phenomena and also nuclear explosions. The ongoing progress of upgrading CTBTO seismic sensors in Indonesia highlights the nation's commitment to supporting the International Monitoring System (IMS)...
With the certification of the hydroacoustic hydrophone station HA4 Crozet in 2017, the International Monitoring System (IMS) hydroacoustic network became the first component of the IMS to be completely certified. Six of the 11 IMS hydroacoustic stations are cabled hydrophone stations with triplets of hydrophones suspended by risers in the deep sound channel; the remaining five are T-stations...
The need for a clear and transparent approach for sustaining the International Monitoring System (IMS) network has grown since the early days of the Provisional Technical Secretariat (PTS), when activities primarily focused on the installation and certification of IMS facilities. Today, as much of the network is ageing, efforts have shifted towards modelling and anticipating future needs for...
Sensor data from radionuclide systems within the International Monitoring System (IMS) provides critical information about the operating status of a given station. Typically, station operators monitor sensors for significant deviations from normal operation to signify a potential problem and take some action. Detecting subtle changes over long periods of time always presents a challenge, but...
During the rainy season in Costa Rica there are problems with satellite communications. This is due to the large amount of rain and bad weather conditions. It is analysed as follows: the frequencies used in a VSAT with the International Data Centre (IDC) are between 4.172GHz to 4.174GHz and between 6.397 and 6.399GHz. Using the formula, we can find that the
wavelength of these frequencies are...
PS02/WRA, the Warramunga Seismic Array in Australia’s Northern Territory, operates in one of the most challenging environments within the International Monitoring System (IMS). Certified since December 2000, the station has been critical to the IMS global monitoring network. Recent engineering activities have focused on enhancing its resilience to environmental hazards, including flooding,...
Predicting equipment degradation and failure within the International Monitoring System (IMS) would enable more efficient maintenance intervals and ultimately reduce station downtime. The coarse sampling of the time-series data, the scarcity of known, labeled failures, as well as the potential influence of unknown failures in the training data makes an AI/ML solution challenging. We introduce...
The International Monitoring System network, the national networks of different countries, consists of various facilities and a variety of equipment and designs deployed in different parts of the globe. The operation and maintenance (O&M) of these facilities in order to achieve the required level of data availability and quality is very challenging and requires resource mobilization, planning,...
At the KMBO 3C primary seismic station, International Monitoring System and Global Communications Infrastructure (GCI) equipment are powered by 240 VAC mains power. A power stabilizer is installed, which regulates the input AC mains power voltage between 180V and 260V. Station visits for routine operation and maintenance are performed once every calendar month. Before 2021, the seismic station...
