A Dataset of Lower Band Whistler Mode Chorus and Exohiss with Instrumental Noise Thresholds
Ondřej Santolík1,2, Ivana Kolmašová3,4, Ulrich Taubenschuss3
1Department of Space Physics, Institute of Atmospheric Physics of the Czech Academy of Sciences, Prague, Czechia. os@ufa.cas.cz.
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.
Related Concept Videos
Intensity and Pressure of Sound Waves
Unlike the time average of a sinusoidal term, which is zero since it is positive...
Sound Intensity Level
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and...
Bandpass Sampling
A bandpass signal has a spectrum with a lower frequency limit, denoted as ω1, and an upper frequency limit, denoted as ω2....
IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations
Sound Intensity
Sound as Pressure Waves
The pressure fluctuation depends on the difference in displacements between the successive points in the...


