This volume is a follow-up of PAGEOPH Topical Volume 167 (2010) and again reports on the latest
advances in science and technology that have been achieved to monitor compliance with the
Comprehensive Nuclear-Test-Ban Treaty (CTBT). This progress in the development and testing of
new sensor technologies and analysis methodologies in all relevant scientific disciplines
improves the detection location and characterization of CTBT-relevant events. In particular
the latter poses a challenge for smaller events where natural or manmade but CTBT-irrelevant
sources can generate false positive events. Being able to effectively identify these events
while maintaining a minimum risk of missing a nuclear explosion is the overall challenge. The
29 papers in this volume can be structured into 16 waveform studies eight contributions in the
field of radionuclide monitoring and related atmospheric backtracking and five papers related
to on-site inspection or overhead detection of relevant events with many of these originally
presented at a special session on Research and Development in Nuclear Explosion Monitoring at
the most recent annual General Assemblies of the European Geosciences Union (EGU). The volume
addresses the interests of scientists and practitioners whose work is related to the CTBT
relevant applications and technologies in the fields of seismology hydro-acoustics
infra-sound meteorology and nuclear physics.
