Print Email Facebook Twitter Infrasound from the 2009 and 2017 DPRK rocket launches Title Infrasound from the 2009 and 2017 DPRK rocket launches Author Evers, L.G. (TU Delft Applied Geophysics and Petrophysics; Royal Netherlands Meteorological Institute (KNMI)) Assink, J. D. (Royal Netherlands Meteorological Institute (KNMI)) Smets, P.S.M. (TU Delft Applied Geophysics and Petrophysics; Royal Netherlands Meteorological Institute (KNMI)) Date 2018-06-01 Abstract Supersonic rockets generate low-frequency acoustic waves, that is, infrasound, during the launch and re-entry. Infrasound is routinely observed at infrasound arrays from the International Monitoring System, in place for the verification of the Comprehensive Nuclear-Test-Ban Treaty. Association and source identification are key elements of the verification system. The moving nature of a rocket is a defining criterion in order to distinguish it from an isolated explosion. Here, it is shown how infrasound recordings can be associated, which leads to identification of the rocket. Propagation modelling is included to further constrain the source identification. Four rocket launches by the Democratic People's Republic of Korea in 2009 and 2017 are analysed in which multiple arrays detected the infrasound. Source identification in this region is important for verification purposes. It is concluded that with a passive monitoring technique such as infrasound, characteristics can be remotely obtained on sources of interest, that is, infrasonic intelligence, over 4500+ km. Subject Acoustic-gravity wavesEarthquake monitoring and testban treaty verificationTime-series analysisWave propagation To reference this document use: http://resolver.tudelft.nl/uuid:d30f4889-6954-4d28-9a21-3eb208887970 DOI https://doi.org/10.1093/gji/ggy092 ISSN 0956-540X Source Geophysical Journal International, 213 (3), 1785-1791 Part of collection Institutional Repository Document type journal article Rights © 2018 L.G. Evers, J. D. Assink, P.S.M. Smets Files PDF ggy092.pdf 12.14 MB Close viewer /islandora/object/uuid:d30f4889-6954-4d28-9a21-3eb208887970/datastream/OBJ/view