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Data Access
POLAR PWI H3 data web access
FTPS from SPDF (not with most browsers)
HTTPS from SPDF
CDAWeb
WebService:
CDAWeb Programmatic Data Access
HAPI: CDAWeb HAPI Server
Polar Plasma Wave Instrument (PWI), High Frequency Waveform Receiver, 16 kHz bandwidth, 6-channel Fields
var authors='Gurnett, Donald, A.; Menietti, J., Douglas';
document.write(authors);
(2023).
Polar Plasma Wave Instrument (PWI), High Frequency Waveform Receiver, 16 kHz bandwidth, 6-channel Fields.
[Data set].
University of Iowa; Space Physics Data Facility.
https://doi.org/10.48322/zvyr-jh19. Accessed on document.write(currentDateStr);.
Note: Proper references, including
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or other formats, should include the "Accessed on date" to identify the version of the resource being cited in a given publication.
ResourceID
spase://NASA/NumericalData/POLAR/PWI/LHFWR/16kHz/PT0000028S
Description
PWI>Plasma Wave Instrument Reference: Gurnett, D.A., et al., The Polar Plasma Wave Instrument, Space Science Reviews, Vol. 71, pp. 597-622, 1995. donald-gurnett@uiowa.edu An FFT on 2048 values was used in calibrating the data; i.e., perform FFT, calibrate in frequency domain, perform inverse FFT to get calibrated time series. Coordinate system used: local magnetic field-aligned, a spacecraft centered coordinate system where Z is parallel to the local B-field determined from Polar MFE, X points outward and lies in the plane defined by the Z-axis and the radial vector from the earth to the spacecraft, and Y completes a right-handed system and points eastward. The X- and Z-axes are contained in the north-south plane. Effective bandwidth is 1.5*delta_f, where delta_f depends on the size of the FFT used to convert to the frequency domain, and delta_t. These data come in snapshots of 2048 points per channel, every 128.8 seconds, where the duration of each snapshot is 0.057 seconds. The time for individual samples is their individual epoch time (in CDF TT2000). The unattenuated frequency range for this file type is 20Hz to 16000Hz. The cadence value given here is computed from the inverse of the sampling rate (35712 Hz). For a description of the PWI receivers and the different operational modes see https://space.physics.uiowa.edu/plasma-wave/polar/modes.html
Metadata Rights
CC0-1.0:
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions. The actual data/software may be subject to a different license.
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Details
Version:2.7.1
NumericalData
ResourceID
spase://NASA/NumericalData/POLAR/PWI/LHFWR/16kHz/PT0000028S
NamingAuthority
NASA
ResourceType
NumericalData
ResourceHeader
ResourceName
Polar Plasma Wave Instrument (PWI), High Frequency Waveform Receiver, 16 kHz bandwidth, 6-channel Fields
DOI
https://doi.org/10.48322/zvyr-jh19
ReleaseDate
2026-07-21 12:06:37Z
RevisionHistory
RevisionEvent
ReleaseDate
2021-04-27 15:38:11Z
Note
Only known prior ReleaseDate of the metadata
RevisionEvent
ReleaseDate
2023-07-30 12:34:56.789Z
Note
Added DOI and PublicationInfo minted by LFB, metadata versioned up to SPASE 2.6.0, reviewed by LFB 20230727
RevisionEvent
ReleaseDate
2025-08-05 13:12:21Z
Note
Added ObservedRegion(s). Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to value in Version tag. ZCB
RevisionEvent
ReleaseDate
2025-10-03 10:48:56Z
Note
Updated PublishedBy name to match ROR Registry. Added ResourceType and NamingAuthority. ZCB
RevisionEvent
ReleaseDate
2025-12-04 13:31:02Z
Note
Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB
RevisionEvent
ReleaseDate
2026-06-26 13:26:37Z
Note
Add 'Z' to RevisionEvent:ReleaseDate(s), PublicationDate, TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB
RevisionEvent
ReleaseDate
2026-07-21 12:06:37Z
Note
Added HelioData InformationURL. JWL
Description
PWI>Plasma Wave Instrument Reference: Gurnett, D.A., et al., The Polar Plasma Wave Instrument, Space Science Reviews, Vol. 71, pp. 597-622, 1995. donald-gurnett@uiowa.edu An FFT on 2048 values was used in calibrating the data; i.e., perform FFT, calibrate in frequency domain, perform inverse FFT to get calibrated time series. Coordinate system used: local magnetic field-aligned, a spacecraft centered coordinate system where Z is parallel to the local B-field determined from Polar MFE, X points outward and lies in the plane defined by the Z-axis and the radial vector from the earth to the spacecraft, and Y completes a right-handed system and points eastward. The X- and Z-axes are contained in the north-south plane. Effective bandwidth is 1.5*delta_f, where delta_f depends on the size of the FFT used to convert to the frequency domain, and delta_t. These data come in snapshots of 2048 points per channel, every 128.8 seconds, where the duration of each snapshot is 0.057 seconds. The time for individual samples is their individual epoch time (in CDF TT2000). The unattenuated frequency range for this file type is 20Hz to 16000Hz. The cadence value given here is computed from the inverse of the sampling rate (35712 Hz). For a description of the PWI receivers and the different operational modes see https://space.physics.uiowa.edu/plasma-wave/polar/modes.html
Acknowledgement
UIowa, Donald A. Gurnett
PublicationInfo
Authors
Gurnett, Donald, A.; Menietti, J., Douglas
PublicationDate
2023-01-01 00:00:00Z
PublishedBy
University of Iowa; Space Physics Data Facility
Contacts
Role
Person
StartDate
StopDate
Note
1.
PrincipalInvestigator
spase://SMWG/Person/Donald.A.Gurnett
2.
Scientist
spase://SMWG/Person/J.Douglas.Menietti
3.
MetadataContact
spase://SMWG/Person/Jeremy.Faden
4.
MetadataContact
spase://SMWG/Person/Lee.Frost.Bargatze
InformationURL
Name
Polar Plasma Wave Investigation (PWI) Data and User's Guides
URL
https://space.physics.uiowa.edu/plasma-wave/polar/data.html
Description
A Polar PWI page is maintained at the University of Iowa with descriptions of receivers, interpretation issues, user's guides, and data availability tables.
Language
en
InformationURL
Name
HelioData
URL
https://helio.data.nasa.gov/dataset/POLAR_PWI_LHFWR_16kHz_PT0000028S
Description
The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more.
PriorIDs
spase://VWO/NumericalData/POLAR/PWI/LHFWR.16kHz.PT0.000028S
spase://VSPO/NumericalData/POLAR/PWI/LHFWR/16kHz/PT0000028S
AccessInformation
RepositoryID
spase://SMWG/Repository/UIowa/RadioPlasmaWaveGroup
Availability
Online
AccessRights
Open
AccessURL
Name
POLAR PWI H3 data web access
URL
https://space.physics.uiowa.edu/plasma-wave/polar/po_h3_pwi/
Description
HTTPS access to directories with Polar PWI H3 data files
Format
CDF
Encoding
None
Acknowledgement
UIowa, Donald A. Gurnett
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Availability
Online
AccessRights
Open
RightsList
Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC0-1.0
RightsURI
https://spdx.org/licenses/CC0-1.0.html
RightsName
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
ftps://spdf.gsfc.nasa.gov/pub/data/polar/pwi/pwi_h3/
Description
In CDF via FTP from SPDF
AccessURL
Name
HTTPS from SPDF
URL
https://spdf.gsfc.nasa.gov/pub/data/polar/pwi/pwi_h3/
Description
In CDF via HTTP from SPDF
Format
CDF
Encoding
None
Acknowledgement
UIowa, Donald A. Gurnett
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Availability
Online
AccessRights
Open
RightsList
Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC0-1.0
RightsURI
https://spdx.org/licenses/CC0-1.0.html
RightsName
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products
AccessURL
Name
CDAWeb
URL
https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=PO_H3_PWI&index=sp_phys
ProductKey
PO_H3_PWI
Description
Plots, lists and files from CDAWeb of the data resource:PO_H3_PWI
Format
Text
AccessDirectoryTemplate
https://cdaweb.gsfc.nasa.gov/pub/data/polar/pwi/pwi_h3/$Y
AccessFilenameTemplate
po_h3_pwi_$Y$m$d_$v.cdf
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF
Availability
Online
AccessRights
Open
AccessURL
Name
CDAWeb Programmatic Data Access
URL
https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/PO_H3_PWI/clientLibraryExample/
Style
WebService
ProductKey
PO_H3_PWI
Description
Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS.
Format
Binary
AccessInformation
RepositoryID
spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb
Availability
Online
AccessRights
Open
RightsList
Rights
SchemeURI
https://spdx.org/licenses/
RightsIdentifierScheme
SPDX
RightsIdentifier
CC0-1.0
RightsURI
https://spdx.org/licenses/CC0-1.0.html
RightsName
Creative Commons Zero v1.0 Universal
Note
CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products
AccessURL
Name
CDAWeb HAPI Server
URL
https://cdaweb.gsfc.nasa.gov/hapi
Style
HAPI
ProductKey
PO_H3_PWI@0
ProductKey
PO_H3_PWI@1
Description
Web Service to this product using the HAPI interface.
Format
CSV
InstrumentIDs
spase://SMWG/Instrument/POLAR/PWI
MeasurementType
Waves.Passive
TemporalDescription
TimeSpan
StartDate
1996-03-25 00:00:00.000Z
StopDate
1997-09-17 00:00:00.000Z
Note
The cadence value given here is computed from the inverse of the sampling rate (35712 Hz).
Cadence
PT0.000028S
ObservedRegion
Earth.Magnetosphere.Polar
ObservedRegion
Earth.NearSurface.AuroralRegion
ObservedRegion
Earth.Magnetosphere
Keywords
CDF Global Attribute TITLE: POLAR PWI HFWR
CDF Global Attribute MISSION_GROUP: Polar CDF Global Attribute MISSION_GROUP: Magnetospheric Data
CDF Global Attribute PROJECT: ISTP>International Solar-Terrestrial Physics
CDF Global Attribute DATA_VERSION: 3
CDF Global Attribute DISCIPLINE: Space Physics>Magnetospheric Science
CDF Global Attribute DATA_TYPE: H3>LHFWR 16kHz (6 channels)
CDF Global Attribute ADID_REF: NSSD2001
CDF Global Attribute MODS: Created Mar 2021
Auroral hiss
Chorus
Continuum radiation
Equatorial Noise
Plasmaspheric Hiss
Langmuir Waves
Electostatic Solitary Waves
ESW
Whistlers
Ion Acoustic Waves
Bernstein Waves
Upper Hybrid Waves
Lower Hybrid Waves
Parameter #1
Name
Time
ParameterKey
Epoch
Description
Time, CDF TT2000 time of HFWR 16 kHz value
Units
ns
RenderingHints
AxisLabel
Epoch
ValidMin
1996-02-27T00:00:00.000000000
ValidMax
2008-04-29T00:00:00.000000000
FillValue
-9223372036854775808
Support
SupportQuantity
Temporal
Parameter #2
Name
Gain for HFWR Channel 1 (Ex)
Set
This parameter is in the set of parameters that depends on the CDF column with the Parameter Key, EPOCH, to specify the Time of Observation.
ParameterKey
Gain 1
Description
Channel 1 Gain (HFWR 16 kHz)
RenderingHints
AxisLabel
HFWR_16K_Ex_Gain
ValueFormat
I2
ValidMin
0
ValidMax
30
FillValue
-1
Support
SupportQuantity
Other
Parameter #3
Name
Gain for HFWR Channel 2 (Ey)
Set
This parameter is in the set of parameters that depends on the CDF column with the Parameter Key, EPOCH, to specify the Time of Observation.
ParameterKey
Gain2
Description
Channel 2 Gain (HFWR 16 kHz)
RenderingHints
AxisLabel
HFWR_16K_Ey_Gain
ValueFormat
I2
ValidMin
0
ValidMax
30
FillValue
-1
Support
SupportQuantity
Other
Parameter #4
Name
Gain for HFWR Channel 3 (Ez)
Set
This parameter is in the set of parameters that depends on the CDF column with the Parameter Key, EPOCH, to specify the Time of Observation.
ParameterKey
Gain3
Description
Channel 3 Gain (HFWR 16 kHz)
RenderingHints
AxisLabel
HFWR_16K_Ez_Gain
ValueFormat
I2
ValidMin
0
ValidMax
30
FillValue
-1
Support
SupportQuantity
Other
Parameter #5
Name
Gain for HFWR 16 kHz M-Field (Bx, By, Bz)
Set
This parameter is in the set of parameters that depends on the CDF column with the Parameter Key, EPOCH, to specify the Time of Observation.
ParameterKey
MGain
Description
M Gain (HFWR)
Caveats
Applies to all 3 Magnetic Channels
RenderingHints
AxisLabel
HFWR_16K_MGain
ValueFormat
I2
ValidMin
0
ValidMax
30
FillValue
-1
Support
SupportQuantity
Other
Parameter #6
Name
HFWR 16 kHz Elec. Field Antenna Ex
Set
This parameter is in the set of parameters that depends on the CDF column with the Parameter Key, EPOCH, to specify the Time of Observation. EPOCH Catalog Description (CATDESC): HFWR Elec Field Antenna Ex (perp and outward in Local-Field Aligned/LFA coords).
ParameterKey
HFWR_Ex16K
Description
HFWR 16 kHz Ex, perpendicular outward in local-field-aligned coords
Units
mV/m
RenderingHints
AxisLabel
HFWR_Ex16K
ValueFormat
E12.4
ValidMin
-30.0
ValidMax
30.0
FillValue
-1.0e+31
Wave
WaveType
PlasmaWaves
WaveQuantity
ACElectricField
Parameter #7
Name
HFWR 16 kHz Elec. Field Antenna Ey
Set
This parameter is in the set of parameters that depends on the CDF column with the Parameter Key, EPOCH, to specify the Time of Observation. EPOCH Catalog Description (CATDESC): HFWR Elec Field Antenna Ey (perp and eastward in Local-Field Aligned/LFA coords).
ParameterKey
HFWR_Ey16K
Description
HFWR 16 kHz Ey, perpendicular eastward in local-field-aligned coords
Units
mV/m
RenderingHints
AxisLabel
HFWR_Ey16K
ValueFormat
E12.4
ValidMin
-30.0
ValidMax
30.0
FillValue
-1.0e+31
Wave
WaveType
PlasmaWaves
WaveQuantity
ACElectricField
Parameter #8
Name
HFWR 16 kHz Elec. Field Antenna Ez
Set
This parameter is in the set of parameters that depends on the CDF column with the Parameter Key, EPOCH, to specify the Time of Observation. EPOCH Catalog Description (CATDESC): HFWR Elec Field Antenna Ez (parallel in Local-Field Aligned/LFA coords).
ParameterKey
HFWR_Ez16K
Description
HFWR 16 kHz Ez, parallel in local-field-aligned coords
Units
mV/m
RenderingHints
AxisLabel
HFWR_Ez16K
ValueFormat
E12.4
ValidMin
-30.0
ValidMax
30.0
FillValue
-1.0e+31
Wave
WaveType
PlasmaWaves
WaveQuantity
ACElectricField
Parameter #9
Name
HFWR 16 kHz Mag. Field Antenna Bx
Set
This parameter is in the set of parameters that depends on the CDF column with the Parameter Key, EPOCH, to specify the Time of Observation. EPOCH Catalog Description (CATDESC): HFWR Mag Field Antenna Bx (perp and outward in Local-Field Aligned/LFA coords).
ParameterKey
HFWR_Bx16K
Description
HFWR 16 kHz Bx, perpendicular outward in local-field-aligned coords
Units
nT
RenderingHints
AxisLabel
HFWR_Bx16K
ValueFormat
E12.4
ValidMin
-50.0
ValidMax
50.0
FillValue
-1.0e+31
Wave
WaveType
PlasmaWaves
WaveQuantity
ACMagneticField
Parameter #10
Name
HFWR 16 kHz Mag. Field Antenna By
Set
This parameter is in the set of parameters that depends on the CDF column with the Parameter Key, EPOCH, to specify the Time of Observation. EPOCH Catalog Description (CATDESC): HFWR Mag Field Antenna By (perp and eastward in Local-Field Aligned/LFA coords).
ParameterKey
HFWR_By16K
Description
HFWR 16 kHz By, perpendicular eastward in local-field-aligned coords
Units
nT
RenderingHints
AxisLabel
HFWR_By16K
ValueFormat
E12.4
ValidMin
-50.0
ValidMax
50.0
FillValue
-1.0e+31
Wave
WaveType
PlasmaWaves
WaveQuantity
ACMagneticField
Parameter #11
Name
HFWR 16 kHz Mag. Field Antenna Bz
Set
This parameter is in the set of parameters that depends on the CDF column with the Parameter Key, EPOCH, to specify the Time of Observation. EPOCH Catalog Description (CATDESC): HFWR Mag Field Antenna Bz (parallel in Local-Field Aligned/LFA coords).
ParameterKey
HFWR_Bz16K
Description
HFWR 16 kHz Bz, parallel in local-field-aligned coords
Units
nT
RenderingHints
AxisLabel
HFWR_Bz16K
ValueFormat
E12.4
ValidMin
-50.0
ValidMax
50.0
FillValue
-1.0e+31
Wave
WaveType
PlasmaWaves
WaveQuantity
ACMagneticField
Parameter #12
Name
DATA_QUALITY
Set
This parameter is in the set of parameters that depends on the CDF column with the Parameter Key, EPOCH, to specify the Time of Observation. EPOCH Catalog Description (CATDESC): Data Quality for Ex components (0 = OK, 1 = clipped or questionable).
ParameterKey
DATA_QUALITY
Description
DATA_QUALITY 0 = OK, 1 = poor
Units
(0=OK,1=Poor)
RenderingHints
AxisLabel
DATA_QUALITY
ValueFormat
I1
ValidMin
0
ValidMax
1
FillValue
-1
Support
SupportQuantity
Other