Version:2.4.0
NumericalData
ResourceID
spase://CNES/NumericalData/CDPP-Archive/Cluster-4/WHISPER/CLU_C4_WHI_ACTIVE
ResourceHeader
ResourceName
CLU4 WHISPER electric power spectral density in sounding mode
DOI
https://doi.org/10.24400/802406/narh-96ts
ReleaseDate
2022-02-22 17:30:23Z
Description
This dataset contains electric field power spectral density measured on Cluster-4 by WHISPER when the sounder is active.
Each data record contains the following support parameters :
Interval centred time tag Receiving antenna used, Ey or Ez Spectral
Frequencies between 1.953 and 79.915 kHz, that is, the frequencies corresponding point to point to the 512 elements of the fixed size spectrum
Frequency Swept Table
Number between 0 and 127 Time interval between two successive emission pulses in units of 40/3 (= 13.3) ms :
0 1 unit (13.3 ms) ,
1 2 units (26.6 ms),
2 3 units (40 ms),
3 5 units (66.6 ms),
4 8 units (106.6 ms),
5 40 units + 2106.66 ms waiting + 256 units + 2446.66 ms waiting (8.5 s),
6 6 units + 45 ms waiting (125 ms)
7 14 units + 63.34 ms waiting (250 ms).
Delay between the leading edge of the emission pulse and the starting edge of the associated reception (acquisition time interval)
Number of gain changes during the acquisition First part of the compressed value which is a fixed point integer defined in the compression algorithm
Contacts
AccessInformation
RepositoryID
Availability
Online
AccessURL
Name
REGARDS
URL
Description
Access via CNES Data Archive for CDPP
Format
CEF
ProcessingLevel
Calibrated
InstrumentIDs
MeasurementType
ElectricField
MeasurementType
Waves.Passive
MeasurementType
Waves.Active
TemporalDescription
TimeSpan
StartDate
2001-02-01 00:00:00Z
StopDate
2019-12-31 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
Cluster 4 WHISPER Electric Spectral Power Density
Description
Cluster 4 WHISPER Electric Spectral Power Density
Units
V^2*m^-2*Hz^-1
Wave
WaveType
PlasmaWaves
WaveQuantity
ACElectricField
FrequencyRange
Parameter #2
Name
Cluster 4 WHISPER Spectral Frequencies
Description
Cluster 4 WHISPER Spectral Frequencies between 1.953 and 79.915 kHz, that is, the frequencies corresponding point to point to the 512 elements of the fixed size spectrum
Units
kHz
UnitsConversion
1e3>Hz
Support
Parameter #3
Name
Cluster 4 WHISPER Table Number
Description
Cluster 4 WHISPER Frequency Swept Table Number between 0 and 127
Support
Parameter #4
Name
Cluster 4 WHISPER Sounding Interval
Description
Cluster 4 WHISPER Time interval between two successive emission pulses in unit of 40/3 (=13.3)ms. 0: 1 unit (13.3 ms) , 1: 2 units (26.6 ms), 2: 3 units (40 ms), 3: 5 units (66.6 ms), 4: 8 units (106.6 ms), 5: 40 units+2106.66 ms waiting+256 units+2446.66 ms waiting (8.5 s) , 6: 6 units+45 ms waiting (125 ms), 7: 14 units+63.34 ms waiting (250 ms)
Units
ms
UnitsConversion
1e-3>s
Support
Parameter #5
Name
Cluster 4 WHISPER Emission/Reception Delay
Description
Cluster 4 WHISPER Delay between the leading edge of the emission pulse and the starting edge of the associated reception (acquisition time interval)
Units
ms
UnitsConversion
1e-3>s
Support
Parameter #6
Name
Cluster 4 WHISPER Gain Change Number
Description
Cluster 4 WHISPER Number of gain changes during the acquisition
Support
Parameter #7
Name
Cluster 4 WHISPER Mantissa
Description
Cluster 4 WHISPER First part of the compressed value which is a fixed point integer defined in the compression algorithm
Support
Parameter #8
Name
Cluster 4 WHISPER Exponent
Description
Cluster 4 WHISPER Second part of the compressed value
Support