Consortional main: Energetic electron density estimation from frequecy shift of whistler-mode chorus emissions in the Radiation Belt  Page description

Help  Print 
Back »

 

Details of project

 
Identifier
116408
Type NN
Principal investigator Lichtenberger, János
Title in Hungarian Konzorcium, fő p.: A sugárzási öv energikus elektronsűrűségének származtatása whistler-módusú kórusok frekvenciaváltozási sebességéből
Title in English Consortional main: Energetic electron density estimation from frequecy shift of whistler-mode chorus emissions in the Radiation Belt
Keywords in Hungarian VLF kórus, energikus elektronok, sugárzási övek, földi mérések, hullámterjedés, plazmaszféra/plazmavályú
Keywords in English VLF chorus, energetic electrons, radiation belts, ground based measuremenst, wave propagation, plasmasphere/plasmatrough
Discipline
Geophysics, Physics of the Lithosphere, Seizmology (Council of Complex Environmental Sciences)100 %
Ortelius classification: Geophysics
Panel Earth sciences 1
Department or equivalent Department of Geophysics (Eötvös Loránd University)
Participants Erhardtné Ferencz, Orsolya
Heilig, Balázs
Juhász, Lilla
Juhász, Lilla
Kern, Anikó
Starting date 2015-11-01
Closing date 2018-10-31
Funding (in million HUF) 15.810
FTE (full time equivalent) 3.83
state running project





 

Final report

 
Results in Hungarian
VLF mérőállomás telepítése a belga antarktiszi (Princess Elisabeth) bázison Automatikus kórus detektáló eljárás kifejlesztése, amelyhez kidolgoztunk egy hatékonyabb szferik-szűrő eljárást Kidolgoztunk egy eljárást a Van Allen Probes műholdak HOPE energikus elektronok energiáját és veszteségi szög eloszlását mérő műszerében lévő öt részecskedetektor keresztkalibrációjára Kidolgoztunk egy kórus-terjedési modellt a már létező whistler-módusú hullámterjedési modellek alapján. Ennek segítségével visszatranszformálható a földi kórus a keletkezési tartományba Kidolgoztunk egy kétlépcsős kórus-inverziós módszert. Az első lépésben a kórust keltő monokromatikus jelből relativisztikus lineáris hullám-részecske kölcsönhatást alkalmazva megbecsültük a párhuzamos termális momentumot és az átlagos merőleges sebességet. A második lépcsőben nemlineáris hullám-részecske kölcsönhatás alapján származtattuk az optimális hullámamplitúdót Kidolgoztunk egy fél-automatikus eljárást a kórus-nyomok automatikus skálázására Kétféleképpen is kalibráltuk az inverziós modellt, in-situ sűrűségméréseket hasonlítottunk össze in-situ, illetve földön mért kórusok inverziójából kapott sűrűségekkel. Minkét esetben nagyon jó egyezést kaptunk. A második eset egyúttal a terjedési modell igazolását is adta.
Results in English
We have installed a VLF receiver at the Belgian Antarctic base, Princess Elisabeth We have developed an automatic algorithm to detect chorus events. The algorithm is based on our existing whistler detector algorithm, but a new ‘cleaning’ algorithm was developed to suppress the sferics impulses We have developed a procedure to intercalibrate the five detectors of HOPE instrument on Van Allen Probes to increase the reliability of pitch angle distribution (PAD) measurements. Based on existing whistler mode wave propagation models, we developed a model that was able to invert the propagation of chorus waves from their generation region (magnetic equator) to the ground. The developed algorithm has been successfully validated with in-situ measurements. We have developed a two-phase chorus inversion method. The first phase is a method to derive the parallel thermal momentum and the average perpendicular velocity. In the second phase, assuming nonlinear wave growth, with the obtained velocities, the optimal wave amplitude is derived. We have developed a semi-automatic algorithm for scaling the chorus elements. This algorithm is based on searching for the maximum wave amplitude at the given frequency for the chorus element. We validated the inversion model, for the validation, we used in-situ particle measurements as well as ground based and in-situ wave measurements. The agreement on the measured and estimated data are excellent
Full text https://www.otka-palyazat.hu/download.php?type=zarobeszamolo&projektid=116408
Decision
Yes





 

List of publications

 
János Lichtenberger, Anders Jorgensen, Dávid Koronczay, Csaba Ferencz, Dániel Hamar, Péter Steinbach, Mark Clilverd, Craig Rodger, Lilla Juhász, Dmitry Sannikov and Nina Cherneva: Plasmaspheric electron densities: the importance in modelling radiation belts and in SSA operation, Geophysical Research Abstracts Vol. 18, EGU2016-8650, 2016, 2016
János Lichtenberger: Accurate determination of initial parameters for whistler inversion, VERSIM - RBS, 19 - 24 September 2016, Hermanus RSA, 2016
David Koronczay, Janos Lichtenberger, Lilla Juhasz, Szilard Pasztor, Peter Steinbach, Csaba Ferencz: Plasmaspheric electron densities derived from VLF transmitter signals, VERSIM - RBS, 19 - 24 Se ptember 2016, Hermanus RSA, 2016
János Lichtenberger, Anders Jorgensen, Dávid Koronczay, Balázs Heilig, Csaba Ferencz, Péter Steinbach, Mark Clilverd, Craig Rodger, Lilla Juhász, Andrew Collier, Dmitry Sannikov and Nina Cherneva: Plasmaspheric electron densities and plasmasphere models for space weather investigations, VERSIM - RBS, 19 - 24 September 2016, Hermanus RSA, 2016
David Koronczay, Janos Lichtenberger, Peter Steinbach, Csaba Ferencz, Mark Clilverd, Craig Rodger, Dmitry Sannikov and Nina Cherneva: L - value distributions and source regions of AWDANET whistlers, VERSIM - RBS, 19 - 24 September 2016, Hermanus RSA, 2016
Péter STEINBACH, János LICHTENBERGER, Dávid KORONCZAY, Csaba FERENCZ, Craig RODGER, Mark CLILVERD, Andrew B. COLLIER: Occurrence of two - hop whistlers in the AWD results – a new aspect in whistler statistics, VERSIM, 19 - 23 September 2016, Hermanus RSA, 2016
Péter STEINBACH, János LICHTENBERGER, Orsolya FERENCZ, Csaba FERENCZ: Fingerprints of sub - ionospheric propagation in whistler fine structures – results of a UWB modelling approach, VERSIM, 19 - 24 September 2016, Hermanus RSA, 2016
János Lichtenberger, Anders Jorgensen, Dávid Koronczay, Csaba Ferencz, Dániel Hamar, Péter Steinbach, Mark Clilverd, Craig Rodger, Lilla Juhász, Dmitry Sannikov and Nina Cherneva:: Modelling and monitoring the plasmasphere: towards an operational Space Weather tool - advances in the PLASMON project, 13th European Space Weather Week, Belgium, Oostende, 2016 November 14-18, 2016
Dávid Koronczay, János Lichtenberger, Lilla Juhász, Anders Jorgensen, Csaba Ferencz, Péter Steinbach, Mark Clilverd, Craig Rodger, Lilla Juhász, Dmitry Sannikov and Nina Cherneva:: Refining AWDANet performance: a decade of whistlers, 13th European Space Weather Week, Belgium, Oostende, 2016 November 14-18, 2016, 2016
János Lichtenberger, Ondrej Santolik, János Solymosi, Luděk Graclík, Fabien Darrouzet, Andrei Demekhov, Alexander Kudrin, Nikolai Lehtinen: Developing a VLF transmitter for LEO satellites: Probing Of Plasmasphere and RADiation Belts - the POPRAD proposal, 13th European Space Weather Week, Belgium, Oostende, 2016 November 14-18, 2016, 2016
David Koronczay, Janos Lichtenberger, Peter Steinbach, Csaba Ferencz, Mark Clilverd, Craig Rodger, Fabien Darrouzet, Dmitry Sannikov and Nina Cherneva: When do lightning strokes become whistlers detectable on the ground?, European Geosciences Union General Assembly 2017 Vienna | Austria | 23–28 April 2017, 2017
L. Juhász, J. Lichtenberger, Y. Omura , R. H. W. Friedel: INTER-CALIBRATION OF VAP-HOPE PARTICLE DETECTORS TO OBTAIN THE ANISOTROPY OF ELECTRON PITCH ANGLE DISTRIBUTION, XXXIInd International Union of Radio Science General Assembly and Scientific Symposium, Kanada, Montreal, Augusztus 19-16., 2017, 2017
N. Bergeot , J.-M. Chevalier, F. Darrouzet, J. Rasson, J. Lichtenberger, C. Bruyninx: GEOSPACE ENVIRONMENT MONITORING AT THE PRINCESS ELISABETH ANTARCTIC (PEA) STATION: INSTRUMENTATION AND FIRST RESULTS, XXXIInd International Union of Radio Science General Assembly and Scientific Symposium, Kanada, Montreal, Augusztus 19-16., 2017, 2017
János Lichtenberger, Ondrej Santolik, János Solymosi, Luděk Graclík, Fabien Darrouzet, Andrei Demekhov, Alexander Kudrin, Nikolai Lehtinen: DEVELOPING A VLF TRANSMITTER FOR LEO SATELLITES: PROBING OF PLASMASPHERE AND RADIATION BELTS - THE POPRAD CONCEPT, XXXIInd International Union of Radio Science General Assembly and Scientific Symposium, Kanada, Montreal, Augusztus 19-16., 2017, 2017
János Lichtenberger, Dávid Koronczay, Csaba Ferencz, Dániel Hamar, Péter Steinbach, Mark Clilverd, Craig Rodger, Lilla Juhász, Dmitry Sannikov and Nina Cherneva: Improved whistler inversion method for monitoring the electron density in the plasmasphere, XXXIInd International Union of Radio Science General Assembly and Scientific Symposium, Kanada, Montreal, Augusztus 19-16., 2017, 2017
David Koronczay, Janos Lichtenberger, Lilla Juhasz: ANALYSIS OF DUCTED VLF TRANSMITTER IMPULSES OBSERVED IN SPACE, XXXIInd International Union of Radio Science General Assembly and Scientific Symposium, Kanada, Montreal, Augusztus 19-16., 2017, 2017
M. Vellante, A. Del Corpo, B. Heilig, J. Reda, E. Pietropaolo, A. M. Jorgensen, and J. Lichtenberger: AN ANALYSIS OF PLASMA MASS DENSITY MEASUREMENTS IN THE INNER MAGNETOSPHERE INFERRED BY FIELD LINE RESONANCE FREQUENCIES DETECTED AT THE EUROPEAN MAGNETOMETER NETWORK, XXXIInd International Union of Radio Science General Assembly and Scientific Symposium, Kanada, Montreal, Augusztus 19-16., 2017, 2017
Anders M. Jorgensen, Janos Lichtenberger, Balazs Heilig, Massimo Vellante, Peter J. Chi: Assimilation of Ground-Based Observations Into a Plasmasphere Model, XXXIInd International Union of Radio Science General Assembly and Scientific Symposium, Kanada, Montreal, Augusztus 19-16., 2017, 2017
David Koronczay, Janos Lichtenberger, Peter Steinbach, Csaba Ferencz, Mark Clilverd, Craig Rodger, Fabien Darrouzet, Dmitry Sannikov and Nina Cherneva: COMPARISON OF WHISTLER TRANSMISSION RATES AT VARIOUS GEOGRAPHIC LOCATIONS, XXXIInd International Union of Radio Science General Assembly and Scientific Symposium, Kanada, Montreal, Augusztus 19-16., 2017, 2017
Dávid Koronczay, János Lichtenberger, Lilla Juhász, Péter Steinbach, Csaba Ferencz: Plasmaspheric density measurements based on guided VLF wave propagation, H-Space 2017, 3rd International Conference on Research, Technology and Education of Space, Budapest, Magyarország, 2017.02.09-10., 2017
L. Juhász, J. Lichtenberger, Y. Omura , R. H. W. Friedel: INTER-CALIBRATION OF VAP-HOPE PARTICLE DETECTORS TO OBTAIN THE ANISOTROPY OF ELECTRON PITCH ANGLE DISTRIBUTION, https://ieeexplore.ieee.org/document/8104988, 2017
Dávid Koronczay, János Lichtenberger, Lilla Juhász, Péter Steinbach, George Hospodarsky: VLF Transmitters as Tools for Monitoring the Plasmasphere, https://arxiv.org/pdf/1807.01498, 2018
Arpad Kis, Shuichi Matsukiyo, Fumiko Otsuka, Tohru Hada, Istvan Lemperger, Iannis Dandouras, Veronika Barta, Gabor Facsko: Effect of Upstream ULF Waves on the Energetic Ion Diffusion at the Earth’s Foreshock. II. Observations, http://real.mtak.hu/id/eprint/88194, 2018
Fumiko Otsuka, Shuichi Matsukiyo, Arpad Kis, Kento Nakanishi, Tohru Hada: Effect of Upstream ULF Waves on the Energetic Ion Diffusion at the Earthʼs Foreshock. I. Theory and Simulation, http://real.mtak.hu/id/eprint/88189, 2018
K.A. Berényi, V. Barta , Á. Kis: Midlatitude ionospheric F2-layer response to eruptive solar events-caused geomagnetic disturbances over Hungary during the maximum of the solar cycle 24: A case study, http://real.mtak.hu/id/eprint/88196, 2018
Lilla Juhasz ,Yoshiharu Omura, Janos Lichtenberger, Reinhard H. Friedel: Evaluation of plasma properties from chorus waves observed at the generation region, https://arxiv.org/abs/1811.09586, 2018
Arpad Kis, Lemperger Istvan, Voros Zoltan, Szalay Sandor, Shuichi Matsukiyo: Scattering, injection and acceleration of field aligned beam ions at quasi-parallel shock: a hybrid simulation study, http://real.mtak.hu/id/eprint/880, 2018





 

Events of the project

 
2017-07-18 15:14:13
Résztvevők változása
2017-06-15 13:22:14
Résztvevők változása




Back »