Journal article
Inter-Calibrated Measurements of Intense Whistlers by Arase and Van Allen Probes
Journal of geophysical research. Space physics, Vol.126(9), e2021JA029700
09/01/2021
DOI: 10.1029/2021JA029700
Abstract
Measurements of electromagnetic waves in space plasmas are an important tool for our understanding of physical processes in this environment. Inter-calibration of data from different spacecraft missions is necessary for combining their measurements in empirical models or case studies. We show results collected during a close conjunction of the Van Allen Probes and Arase spacecraft. The inter-calibration is based on a fortuitous case of common observations of strong whistlers at frequencies between a few hundred hertz and 10 kHz, which are generated by the same lightning strokes and which propagate along very similar paths to the two spacecraft. Measured amplitudes of the magnetic field fluctuations are the same within similar to 14% precision of our analysis, corresponding to 1.2 dB. Currently, archived electric field measurements show twice larger amplitudes on Arase compared to Van Allen Probes but they start to match within similar to 33% precision (2.5 dB) once the newest results on the interface of the antennas to the surrounding plasma are included in the calibration procedures. Ray tracing simulations help us to build a consistent scenario of wave propagation to both spacecraft reflected by a successful inter-calibration of the polarization and propagation parameters obtained from multicomponent measurements. We succeed in linking the spacecraft observations to localizations of lightning return strokes by two different ground-based networks which independently verify the correctness of the Universal Time tags of waveform measurements by both spacecraft missions, with an uncertainty better than 10 ms.
Details
- Title: Subtitle
- Inter-Calibrated Measurements of Intense Whistlers by Arase and Van Allen Probes
- Creators
- O. Santolik - Czech Academy of Sciences, Institute of Atmospheric PhysicsY. Miyoshi - Nagoya UniversityI Kolmašová - Czech Acad Sci, Inst Atmospher Phys, Dept Space Phys, Prague, Czech RepublicS. Matsuda - Japan Aerospace Exploration AgencyG. B. Hospodarsky - University of IowaD. P. Hartley - Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USAY. Kasahara - Kanazawa UniversityH. Kojima - Kyoto UniversityA. Matsuoka - Kyoto UniversityI Shinohara - Japan Aerospce Explorat Agcy, Inst Space & Astronaut Sci, Sagamihara, Kanagawa, JapanW. S. Kurth - University of IowaC. A. Kletzing - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Journal of geophysical research. Space physics, Vol.126(9), e2021JA029700
- DOI
- 10.1029/2021JA029700
- ISSN
- 2169-9380
- eISSN
- 2169-9402
- Publisher
- Amer Geophysical Union
- Number of pages
- 15
- Grant note
- JPJSBP120192504; JSPS-19-05 / JSPS-CAS bilateral project 921647; NAS5-01072 / JHU/APL under NASA's prime contract 80NSSC21K0519 / NASA; National Aeronautics & Space Administration (NASA) Institute for Space-Earth Environmental Research, Nagoya University 15H05815; 16H06286; 17H06140; 20H01959; 20K14546; 21H04520 / JSPS-KAKENHI; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT); Japan Society for the Promotion of Science; Grants-in-Aid for Scientific Research (KAKENHI) CZ.02.1.01/0.0/0.0/15_003/0000481 / European Regional Development Fund-Project CRREAT 870452 / European Union's Horizon 2020 research and innovation programme 20-09671S / GACR; Grant Agency of the Czech Republic
- Language
- English
- Date published
- 09/01/2021
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984428793702771
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