Journal article
A Dataset of Lower Band Whistler Mode Chorus and Exohiss with Instrumental Noise Thresholds
Scientific data, Vol.12(1), 1265
07/18/2025
DOI: 10.1038/s41597-025-05531-6
PMCID: PMC12274541
PMID: 40681514
Abstract
We describe a large database of natural electromagnetic emissions of lower band whistler mode chorus and exohiss within the Earth’s magnetosphere. It is based on more than 124 million selected survey measurements of magnetic fluctuations, recorded between 2001 and 2020 by the two NASA Van Allen Probes and four ESA Cluster spacecraft. The database provides a comprehensive view of amplitudes of these important electromagnetic emissions in the audible frequency range. We carefully condition the data to minimize the influence of instrumental artefacts. We also remove all data points which may be contaminated by instrumental noise using a newly developed method to define detection thresholds as a function of frequency, time, and instrument settings. The database can serve as a valuable resource for a broad range of scientists studying space weather, magnetospheric physics, and radiation belt dynamics.
Details
- Title: Subtitle
- A Dataset of Lower Band Whistler Mode Chorus and Exohiss with Instrumental Noise Thresholds
- Creators
- Ondřej Santolík - Charles UniversityIvana Kolmašová - Czech Academy of Sciences, Institute of Atmospheric PhysicsUlrich Taubenschuss - Czech Academy of Sciences, Institute of Atmospheric PhysicsMiroslav Hanzelka - Czech Academy of Sciences, Institute of Atmospheric PhysicsDavid P. Hartley - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Scientific data, Vol.12(1), 1265
- DOI
- 10.1038/s41597-025-05531-6
- PMID
- 40681514
- PMCID
- PMC12274541
- eISSN
- 2052-4463
- Publisher
- Nature Publishing Group UK; BERLIN
- Grant note
- GACR: 25-18095X Czech MEYS Inter-excellence II programme: LUAUS23152 Alexander von Humboldt FoundationNASA: 80NSSC20K1324, 80NSSC21K0519 NSF-GEM: 2040708, 2350235 European Union's Horizon 2020 research and innovation programme: 870452 - PAGER
We are grateful to the Van Allen Probes EMFISIS instrument team, led by the late Craig A. Kletzing of the University of Iowa, and to the Cluster STAFF instrument team, led by the late Nicole Cornilleau-Wehrlin of the Laboratoire de Physique des Plasmas, Ecole Polytechnique, for building the instruments and for collecting invaluable databases of measurements. O.S. and I.K. acknowledge funding from the GACR grant 25-18095X, and from the Czech MEYS Inter-excellence II programme through project LUAUS23152. M.H. received funding from the Alexander von Humboldt Foundation. D.P.H. acknowledges NASA grants 80NSSC20K1324 and 80NSSC21K0519, in addition to NSF-GEM grants 2040708 and 2350235. This work was initiated under the funding from European Union's Horizon 2020 research and innovation programme under grant agreement No. 870452 - PAGER, and we acknowledge initial discussions with the PAGER team, especially with Marie Turcicova, Yuri Shprits, and Dedong Wang.
- Language
- English
- Date published
- 07/18/2025
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984848120302771
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