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Smink, M.M.E. (author), Assink, Jelle D. (author), Bosveld, F. C. (author), Smets, P.S.M. (author), Evers, L.G. (author)
The Royal Netherlands Meteorological Institute (KNMI) operates a three-dimensional microbarometer array at the Cabauw Experimental Site for Atmospheric Research observatory. The array consists of five microbarometers on a meteorological tower up to an altitude of 200 m. Ten ground-based microbarometers surround the tower with an array aperture...
journal article 2019
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Evers, L.G. (author), Assink, J. D. (author), Smets, P.S.M. (author)
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...
journal article 2018
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Averbuch, G. (author), Assink, Jelle D. (author), Smets, P.S.M. (author), Evers, L.G. (author)
Low-frequency acoustic, i.e., infrasound, waves are measured by sparse arrays of microbarometers. Recorded data are processed by automatic detection algorithms based on array-processing techniques such as time-domain beam forming and f-k analysis. These algorithms use a signal-to-noise ratio (S/N) value as a detection criterion. In the case...
journal article 2018
document
Shani Kadmiel, S. (author), Assink, Jelle D. (author), Smets, P.S.M. (author), Evers, L.G. (author)
In this study we analyze infrasound signals from three earthquakes in central Italy. The M<sub>w</sub> 6.0 Amatrice, M<sub>w</sub> 5.9 Visso, and M<sub>w</sub> 6.5 Norcia earthquakes generated significant epicentral ground motions that couple to the atmosphere and produce infrasonic waves. Epicentral seismic and infrasonic signals are...
journal article 2018
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Blanc, E (author), Ceranna, L. (author), Hauchecorne, A (author), Charlton-Perez, A (author), Marchetti, E. (author), Evers, L.G. (author), Kvaerna, T (author), Lastovicka, J. (author), Eliasson, L. (author), Crosby, N. B. (author), Blanc-Benon, P. (author), le Pichon, A (author), Brachet, N (author), Pilger, C (author), Keckhut, P (author), Assink, J. D. (author), Smets, P.S.M. (author), Lee, C. F. (author), Kero, J. (author), Sindelarova, T. (author), Kämpfer, N. (author), Rüfenacht, R. (author), Farges, T. (author), Millet, C. (author), Näsholm, S. P. (author), Gibbons, S. J. (author), Espy, P. J. (author), Hibbins, R. E. (author), Heinrich, P (author), Ripepe, M (author), Khaykin, S. (author), Mze, N. (author), Chum, J. (author)
This paper reviews recent progress toward understanding the dynamics of the middle atmosphere in the framework of the Atmospheric Dynamics Research InfraStructure in Europe (ARISE) initiative. The middle atmosphere, integrating the stratosphere and mesosphere, is a crucial region which influences tropospheric weather and climate. Enhancing...
journal article 2018
document
Smets, P.S.M. (author), Assink, J. D. (author), Le Pichon, A. (author), Evers, L.G. (author)
Accurate prediction of Sudden Stratospheric Warming (SSW) events is important for the performance of numerical weather prediction due to significant stratosphere-Troposphere coupling. In this study, for the first time middle atmospheric numerical weather forecasts are evaluated using infrasound. A year of near-continuous infrasound from the...
journal article 2016
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Assink, J. D. (author), Averbuch, G. (author), Smets, P.S.M. (author), Evers, L.G. (author)
The underground nuclear tests by the Democratic People's Republic of Korea (DPRK) generated atmospheric infrasound both in 2013 and 2016. Clear detections were made in the Russian Federation (I45RU) and Japan (I30JP) in 2013 at stations from the International Monitoring System. Both tropospheric and stratospheric refractions arrived at the...
journal article 2016
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Le Pichon, A. (author), Assink, J.D. (author), Heinrich, P. (author), Blanc, E. (author), Charlton-Perez, A. (author), Lee, C.F. (author), Keckhut, P. (author), Hauchecorne, A. (author), Rufenacht, R. (author), Kampfer, N. (author), Drob, D.P. (author), Smets, P.S.M. (author), Evers, L.G. (author), Ceranna, L. (author), Pilger, C. (author), Ross, O. (author), Claud, C. (author)
High-resolution, ground-based and independent observations including co-located wind radiometer, lidar stations, and infrasound instruments are used to evaluate the accuracy of general circulation models and data-constrained assimilation systems in the middle atmosphere at northern hemisphere midlatitudes. Systematic comparisons between...
journal article 2015
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Evers, L.G. (author), Brown, D. (author), Heaney, K.D. (author), Assink, J.D. (author), Smets, P.S.M. (author), Snellen, M. (author)
Atmospheric low-frequency sound, i.e., infrasound, from underwater events has not been considered thus far, due to the high impedance contrast of the water-air interface making it almost fully reflective. Here we report for the first time on atmospheric infrasound from a large underwater earthquake (Mw 8.1) near the Macquarie Ridge, which was...
journal article 2014
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Assink, J.D. (author), Waxler, R. (author), Smets, P.S.M. (author), Evers, L.G. (author)
In January 2011, the state of the polar vortex in the midlatitudes changed significantly due to a minor sudden stratospheric warming event. As a result, a bidirectional duct for infrasound propagation developed in the middle atmosphere that persisted for 2 weeks. The ducts were due to two zonal wind jets, one between 30 and 50 km and the other...
journal article 2014
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Brown, P.G. (author), Assink, J.D. (author), Astiz, L. (author), Blaauw, R. (author), Boslough, M.B. (author), Borovicka, J. (author), Brachet, N. (author), Brown, D. (author), Campbell-Brown, M. (author), Ceranna, L. (author), Cooke, W. (author), de Groot-Hedin, C. (author), Drob, D.P. (author), Edwards, W. (author), Evers, L.G. (author), Garces, M. (author), Gill, J. (author), Hedlin, M. (author), Kingery, A. (author), Laske, G. (author), le Pichon, A. (author), Mialle, P. (author), Moser, D.E. (author), Saffer, A. (author), Silber, E. (author), Smets, P.S.M. (author), Spalding, R.E. (author), Spurny, P. (author), Tagliaferri, E. (author), Uren, D. (author), Weryk, J. (author), Whitaker, R. (author), Krzeminski, Z. (author)
journal article 2013
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