Version:2.4.0
NumericalData
ResourceID
spase://CNES/NumericalData/CDPP-Archive/Cluster/WHISPER_SP/CLU_SP_CL_WHI
ResourceHeader
ResourceName
Cluster WHISPER Summary Parameters
DOI
https://doi.org/10.24400/802406/a13g-gfsg
ReleaseDate
2022-02-25 11:13:53Z
Description
This data set contains the Cluster WHISPER Summary Parameters : the electron density and plasma wave spectral density integrated over the frequency range, plus the status of operations.
Caveats
The WHISPER sounders operate on a duty cycle, so the electron density is sampled on neither a continuous nor a constant basis. This duty cycle covers situations from continuous active modes with one sounding occurring typically every 1-3 seconds, to natural mode operation only when no sounding is performed, and hence no density is provided for long periods. When many density values are available during a PPDB/SPDB interval, the averaged value is provided. When no value is available during such a time interval, the fill value (no data) is given. For example, in the typical WEC normal mode, a double sounding occurs over 3 s every 52 s. Thus, for PPDB, a density value, averaged over 2 spectra, is available followed by 6 fill values. For the SPDB, 2 averaged values are available 52 s apart. They are averaged for the SPDB slot.
Contacts
AccessInformation
RepositoryID
Availability
Online
AccessURL
Name
REGARDS
URL
Description
Access via CNES Data Archive for CDPP
Format
CDF
ProcessingLevel
Calibrated
InstrumentIDs
MeasurementType
ElectricField
MeasurementType
Waves.Passive
MeasurementType
Waves.Active
TemporalDescription
TimeSpan
StartDate
2001-01-09 00:00:00Z
StopDate
2012-12-31 00:00:00Z
ObservedRegion
Earth.Magnetosheath
ObservedRegion
Earth.Magnetosphere
ObservedRegion
Earth.Magnetosphere.Magnetotail
ObservedRegion
Earth.Magnetosphere.Main
ObservedRegion
Earth.Magnetosphere.Polar
ObservedRegion
Earth.Magnetosphere.RadiationBelt
ObservedRegion
Earth.NearSurface.AuroralRegion
ObservedRegion
Earth.NearSurface.Ionosphere
ObservedRegion
Earth.NearSurface.Plasmasphere
ObservedRegion
Earth.NearSurface.PolarCap
ObservedRegion
Heliosphere.NearEarth
Parameter #1
Name
Electron Number Density
Description
Cluster Summary Parameter Waves of HF and Sounder for Probing Electron Density by Relaxation electron number density derived from plasma frequency recognition at spin time resolution
Units
cm^-3
UnitsConversion
1e6>m^-3
Particle
ParticleType
Electron
Qualifier
Scalar
ParticleQuantity
NumberDensity
Parameter #2
Name
Cluster WHISPER Summary Param Electron Number Density Quality Resonance Identification Flag
Description
Cluster Summary Parameter Waves of HF and Sounder for Probing Electron Density by Relaxation electron number density quality of the resonance recognition flag at spin time resolution
Support
Parameter #3
Name
Cluster WHISPER Summary Param Electric Field spectral density (4–80 kHz)
Description
Cluster Summary Parameter Waves of HF and Sounder for Probing Electron Density by Relaxation electric field spectral density in the 4-80 kHz frequency range at spin time resolution
Units
V^2 m^-2 Hz^-1
Field
Qualifier
Scalar
FieldQuantity
Electric
FrequencyRange
Low
4000
High
80000
Units
Hz
Parameter #4
Name
Cluster WHISPER Summary Param status
Description
Cluster Summary Parameter Waves of HF and Sounder for Probing Electron Density by Relaxation status at spin time resolution
Support