scholarly journals Ambient Noise Analysis from Selected CTBTO (Comprehensive Test Ban Treaty Organization) Sites

2015 ◽  
Author(s):  
David L. Bradley
Keyword(s):  
Ambient Noise ◽  
Noise Analysis ◽  
Comprehensive Test Ban Treaty ◽  
Comprehensive Test ◽  
Test Ban ◽  
Test Ban Treaty

scholarly journals Adjoint backtracking for the verification of the Comprehensive Test Ban Treaty

2002 ◽  
Vol 2 (6) ◽  
pp. 2133-2150 ◽  
Author(s):  
J.-P. Issartel ◽  
J. Baverel
Keyword(s):  
Adjoint Operator ◽  
Real Data ◽  
Daily Basis ◽  
New Approach ◽  
Comprehensive Test Ban Treaty ◽  
Tracer Dispersion ◽  
International Monitoring ◽  
Comprehensive Test ◽  
Test Ban ◽  
Test Ban Treaty

Abstract. An international monitoring system is being built as a verification tool for the Comprehensive Test Ban Treaty. Forty stations will measure on a worldwide daily basis the concentration of radioactive noble gases. The paper introduces, by handling preliminary real data, a new approach of backtracking for the identification of sources after positive measurements. When several measurements are available the ambiguity about possible sources is reduced significantly. As an interesting side result it is shown that diffusion in the passive tracer dispersion equation is necessarily a self-adjoint operator.

Infrasound station IS25 of the International Monitoring System of the Comprehensive Test Ban Treaty : from design to certification

2021 ◽  
Author(s):  
thomas philippe ◽  
sylvain carre
Keyword(s):  
Monitoring System ◽  
International Monitoring System ◽  
Comprehensive Test Ban Treaty ◽  
Monitoring Tools ◽  
International Monitoring ◽  
Deep Forest ◽  
International Data ◽  
Comprehensive Test ◽  
Test Ban ◽  
Test Ban Treaty

<p>CEA is operating the French segment of the International Monitoring System of the Comprehensive Test Ban Treaty (CTBT). Construction of IMS stations was started on the late 90’ and one last station was pending before completing commitment of France.</p><p>Taking into account experience learned over the years, design was thought to combine enhanced detection capability and robustness. It gives also the opportunity to improve out monitoring tools and technics.</p><p>Station run 9 sensors spread out on a deep forest in Guadeloupe; power is distributed with buried cable while data are received with optical fibre to a central facility from which frames are sent to the International Data Center to the CTBTO. Constructiion was carried out in 2019.</p><p>IS25 was certified by the PTS of the CTBTO in November 2020</p>

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