Version:2.3.0
DisplayData
ResourceID
spase://JAXA/DisplayData/Geotail/PWI/DS/PT2H
ResourceHeader
ResourceName
Geotail Plasma Wave Instrument (PWI) 2 hour dynamic spectrograms
ReleaseDate
2019-05-05 12:34:56Z
Description
Geotail PWI SFA and MCA dynamic spectrogram plots with frequency in Hz on the vertical axis and time in UT on the horizontal axis. Each file contains one spectrogram from the electric field antennas and one from the magnetic field search coils. The electric field spectrograms span the frequency range 5.62 to 24 Hz (the Multi-Channel Analyzer - MCA instrument) and 24 Hz to 800 kHz (the Sweep Frequency Analyzer - SFA instrument). The intensity values are color coded and are expressed in units of dBV/m/root-Hz. The magnetic field spectrograms also combine the MCA and SFA instruments and span the frequency range 5.62 Hz to 12.5 kHz. The intensity values are color coded and are expressed in units of dB nT/root-Hz. Each plot spans 2 hours. Information on the instrument and antenna status is also provided above each spectrogram.
Acknowledgement
Before using these data in publications or presentations permission must be obtained from the PI of PWI (Hiroshi Matsumoto). Concerning this permission and questions about the GEOTAIL PWI data contact Hiro Kojima
Contacts
InformationURL
Name
Geotail PWI Instrument Page
URL
Description
Geotail PWI Instrument page maintained by the Research Institute for Sustainable Humanosphere at Kyoto University, Japan with descriptions of PWI, PWI 24 hour plots, PWI 2 hour plots and Geotail PWI publications.
Language
en
PriorIDs
spase://VWO/DisplayData/Geotail/PWI/Geotail_PWI_DS_2H
spase://VWO/DisplayData/Geotail/PWI/DS.PT2H
spase://VSPO/DisplayData/Geotail/PWI/DS/PT2H
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
Directory of Geotail PWI 2 Hour Dynamic Spectrograms
URL
Description
A directory containing Geotail PWI 2 hour dynamic spectrograms
Language
en
Format
GIF
Encoding
None
Acknowledgement
Before using these data in publications or presentations permission must be obtained from the PI of PWI (Hiroshi Matsumoto). Concerning this permission and questions about the GEOTAIL PWI data contact Hiro Kojima
InstrumentIDs
MeasurementType
Waves.Passive
MeasurementType
Spectrum
MeasurementType
ElectricField
MeasurementType
MagneticField
TemporalDescription
TimeSpan
StartDate
1992-09-18 00:00:00Z
StopDate
2009-01-23 23:59:59Z
DisplayCadence
PT2H
ObservedRegion
Earth.Magnetosphere
ObservedRegion
Earth.NearSurface.Plasmasphere
ObservedRegion
Earth.NearSurface.AuroralRegion
ObservedRegion
Earth.NearSurface.PolarCap
ObservedRegion
Heliosphere.Inner
Keywords
Dynamic Spectrogram
Spectrogram
AKR
Auroral Kilometric Radiation
Chorus
Continuum radiation
Myriametric radiation
Solar radio burst
Terrestrial Kilometric Radiation
TKR
Type II Solar radio burst
Type III Solar radio burst
Parameter #1
Name
Pseudo Electric Intensity
Units
db(V/m/root-Hz)
Wave
WaveType
PlasmaWaves
Qualifier
Magnitude
Qualifier
Pseudo
WaveQuantity
ACElectricField
FrequencyRange
SpectralRange
RadioFrequency
Low
5.62
High
800000
Units
Hz
Parameter #2
Name
Pseudo Magnetic Intensity
Units
db(nT/root-Hz)
Wave
WaveType
PlasmaWaves
Qualifier
Magnitude
Qualifier
Pseudo
WaveQuantity
ACMagneticField
FrequencyRange
SpectralRange
RadioFrequency
Low
5.62
High
12500
Units
Hz
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