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| IRF Kiruna |
| IRF Umeå |
| IRF Uppsala |
| IRF Lund |
Here follows a list of recent publications:
Detection of Meteor- and Space Object Entries Using Infrasonic Observations. Ludwik Liszka ludwik@irf.se, Johan Kero johan.kero@irf.se, Lars Eliasson lars.eliasson@irf.se, Carl-Fredrik Enell carl-fredrik.enell@eiscat.se, Tero Raita tero.raita@sgo.fi
IRF Scientific Report 304, October 2014.
The cross-correlation parameters of the infrasonic wave field on the ground. Ludwik Liszka ludwik@irf.se
IRF Scientific Report 303, July 2012. ISBN 978-91-977255-9-0.
A Search for Underground Nuclear Test Signatures in Archival Infrasound Data. (L. Liszka ludwik@irf.se)
Published in InfraMatics September-2010 Newsletter
Infrasonic Observations of Recent Meteoroid Entries over Northern Scandinavia. (L. Liszka ludwik@irf.se, T. Kvaerna tormod@norsar.no, C-F. Enell carl-fredrik.enell@sgo.fi & T. Raita tero.raita@sgo.fi)
Published in InfraMatics June-2010 Newsletter
Infrasound in the Atmosphere - Towards a New Propagation Model. (L. Liszka ludwik@irf.se, C-F. Enell carl-fredrik.enell@sgo.fi & T. Raita tero.raita@sgo.fi)
Published in InfraMatics June-2009 Newsletter
ISS09 poster about "Swedish-Finnish Infrasound Network — The Research Program".
Prediction of Grand Minima.
AGU Fall Meeting 2008 (AE31A-0272) poster about "Infrasonic Observations of Thunderstorms at High Latitudes: Time Scales".
Propagation of Infrasound from Chemical Explosions. (Ludwik Liszka ludwik@irf.se & Tormod Kvaerna tormod@norsar.no)
Published in InfraMatics March-2008 Newsletter
Listening to Meteors
Infrasonic Observations of Meteors in Northern Sweden
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This book contains a summary of the work, performed by the author, on infrasonic detection of meteoroid entries above and around northern Scandinavia. Major meteor events recorded during last 12 years by Swedish Infrasound Network are discussed. Events, which were located favourable with respect to infrasonic arrays, could be used for determination of the meteoroid orbit. The method used to extract the orbital elements is summarized. It is discussed how, using known meteoroid entries as a reference, it is possible to search for unknown events. Such a search was performed on entire data base of infrasonic recordings and the results are presented. ISBN 978-91-977255-4-5 |
Infrasound
A summary of 35 years of infrasound research
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The present book is a summary of research conducted by the author during the past 35 years and, mainly, based on the data from the Swedish Infrasound Network. Studies of infrasound from numerous natural and artificial sources are presented. This book is addressed principally to researchers working in the area of detection and, in particular, in the area of infrasonic detection. ISBN 978-91-977255-0-7 |
Order the complete book in pdf-format here (free).
Errata Missing figure on p. 78.
AGU Fall Meeting 2007 (AE23A-0900) poster about "Sprite-attributed infrasonic chirps FROM THUNDERSTORMS".
AGU Fall Meeting 2006 poster about "Infrasound from thunderstorms".
AGU Fall Meeting 2005 poster about "Sprite-attributed infrasonic chirps".
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Professor Liszka discusses various information processing techniques which have certain common characteristics: they are all attempts to simulate the basic processes of human cognition. These techniques are particularly useful when studying complex, multivariate processes in nature, especially when they are non-linear. Introduction of these techniques into the area of space physics and astrophysics opens new possibilities for understanding the vast amount of information collected in space experiments. This book may be bought from IRF. Follow this link for instructions on how to proceed. ISBN 0-88126-090-8 |
Extraction of a Deterministic Component from ROSAT X-ray Data Using a Wavelet Transform and the Principal Component Analysis: Analysis of random pulses and simulated data. (L. Liszka ludwik@irf.se)
Variability in Viking ion and electric field observations detected by a wavelet filtering technique. (L. Liszka ludwik@irf.se, M. Øieroset and B. Hultqvist)
Thermistor Measurements of Temperature Oscillations During the Arctic Summer: Potential Coupling Between Severe Convective Thunderstorms and the Surface Prandtl Layer. (Douglas O. Revelle dor@vega_lanl_gov & L. Liszka ludwik@irf.se)
A Study of Short-Term Temporal Variations of Photon Counts Recorded by the ROSAT X-ray Satellite. (L. Liszka ludwik@irf.se)
Filtering of multivariate time series in the principal component space. (L. Liszka ludwik@irf.se)
Decomposition of particle energy spectra using the principal component method. (L. Liszka ludwik@irf.se)
A Study of Statistical Properties of Temporal Variations of X-ray Emission from NGC5548 in ROSAT PSPC Observations. (L. Liszka ludwik@irf.se)
Reconstruction of equidistant time series using neural networks. (L. Liszka ludwik@irf.se)
Either use 
or
for a pdf-reader (you need one to read the reports.)
