2.7.1 https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions spase://NASA/NumericalData/POLAR/PWI/LHFWR/16kHz/Interferometry/PT0.000028S NASA NumericalData Polar Plasma Wave Instrument (PWI), High Frequency Waveform Receiver, 16 kHz, Time Domain Fields. https://doi.org/10.48322/kvvt-2c42 2026-07-21T12:06:37Z 2021-04-27T15:38:11Z Only known prior ReleaseDate of the metadata 2023-07-30T12:34:56.789Z Added DOI and PublicationInfo minted by LFB, metadata versioned up to SPASE 2.6.0, reviewed by LFB 20230727 2025-08-05T13:12:21Z 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 2025-10-03T10:48:56Z Updated PublishedBy name to match ROR Registry. Added ResourceType and NamingAuthority. ZCB 2025-12-04T13:31:02Z Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB 2026-06-26T13:26:37Z Add 'Z' to RevisionEvent:ReleaseDate(s), PublicationDate, TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB 2026-07-21T12:06:37Z Added HelioData InformationURL. JWL 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 (35.71 kHz). For a description of the PWI receivers and the different operational modes see: http://www-pw.physics.uiowa.edu/plasma-wave/istp/polar/modes.html U. Iowa, Donald. A. Gurnett Gurnett, Donald, A.; Menietti, J., Douglas 2023-01-01T00:00:00Z Space Physics Data Facility spase://SMWG/Person/Donald.A.Gurnett PrincipalInvestigator spase://SMWG/Person/J.Douglas.Menietti Scientist spase://SMWG/Person/Jeremy.Faden MetadataContact spase://SMWG/Person/Lee.Frost.Bargatze MetadataContact Polar Plasma Wave Investigation (PWI) Data and User's Guides http://www-pw.physics.uiowa.edu/polar/data.html A Polar PWI page is maintained at the University of Iowa with descriptions of receivers, interpretation issues, user's guides, data availability tables, a form for creating summary plots and access to pregenerated dynamic spectrograms. en HelioData https://helio.data.nasa.gov/dataset/POLAR_PWI_LHFWR_16kHz_Interferometry_PT0.000028S The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more. spase://VWO/NumericalData/POLAR/PWI/LHFWR.16kHz.Interferometry.PT0.000028S spase://VSPO/NumericalData/POLAR/PWI/LHFWR/16kHz/Interferometry/PT0.000028S spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb Online Open https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products FTP access to files at SPDF https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=PO_H5_PWI&index=sp_phys PO_H5_PWI In CDF via FTP from SPDF HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/polar/pwi/pwi_h5/ In CDF via HTTP from SPDF CDF None U. Iowa, Donald. A. Gurnett and the Space Physics Data Facility at NASA/GSFC spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb Online Open https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products CDAWeb https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=PO_H5_PWI&index=sp_phys PO_H5_PWI Plots, lists and files from CDAWeb of the data resource:PO_H5_PWI Text https://cdaweb.gsfc.nasa.gov/pub/data/polar/pwi/pwi_h5/$Y po_h5_pwi_$Y$m$d_$v.cdf spase://SMWG/Repository/NASA/GSFC/SPDF Online Open CDAWeb Programmatic Data Access https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/PO_H5_PWI/clientLibraryExample/ PO_H5_PWI Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS. Binary spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb Online Open https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products CDAWeb HAPI Server https://cdaweb.gsfc.nasa.gov/hapi PO_H5_PWI@0 PO_H5_PWI@1 Web Service to this product using the HAPI interface. CSV spase://SMWG/Instrument/POLAR/PWI Waves.Passive 1996-03-25T00:00:00.000Z 1997-09-15T00:00:00.000Z The cadence value given here is computed from the inverse of the sampling rate (35.71 kHz). PT0.000028S Earth.Magnetosphere.Polar Earth.NearSurface.AuroralRegion Earth.Magnetosphere 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: 1 CDF Global Attribute DISCIPLINE: Space Physics>Magnetospheric Science CDF Global Attribute DATA_TYPE: H5>High Resolution Data CDF Global Attribute ADID_REF: NSSD2001 CDF Global Attribute MODS: Created Jan 2004 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 Time Epoch Time, time of HFWR 16 kHz value ms Epoch 27-Feb-1996 00:00:00.000 31-Dec-2020 00:00:00.000 -1.0e+31 Temporal Gain for HFWR Channel 1 (Eu) 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. Gain 1 Channel 1 Gain (HFWR 16 kHz) dB Gain1 I2 0 30 -1 Other Gain for HFWR Channel 2 (Ev) 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. Gain2 Channel 2 Gain (HFWR 16 kHz) dB Gain2 I2 0 30 -1 Other Gain for HFWR Channel 3 (Ez) 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. Gain3 Channel 3 Gain (HFWR 16 kHz) dB Gain3 I2 0 30 -1 Other Gain for HFWR 16 kHz M-Field (Bu, Bv, Bz) 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. MGain M Gain (HFWR 16 kHz) Applies to all 3 Magnetic Channels dB MGain I2 0 30 -1 Other HFWR 16 kHz Elec Field Antenna Eu 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). HFWR_Eu16K HFWR 16 kHz Elec Field Antenna Eu mV/M HFWR_Eu16K E12.4 -30.0 30.0 -1.0e+31 PlasmaWaves ACElectricField HFWR 16 kHz Elec Field Antenna Ev+ 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). HFWR_Evp16K HFWR 16 kHz Elec Field Antenna Ev+ mV/M HFWR_Evp16K E12.4 -30.0 30.0 -1.0e+31 PlasmaWaves ACElectricField HFWR 16 kHz Elec Field Antenna Ev- 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). HFWR_Evm16K HFWR 16 kHz Elec Field Antenna Ev- mV/M HFWR_Evm16K E12.4 -30.0 30.0 -1.0e+31 PlasmaWaves ACElectricField HFWR 16 kHz Mag Field Antenna Bu 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). HFWR_Bu16K HFWR 16 kHz Mag Field Antenna Bu nT HFWR_Bu16K E12.4 -200.0 200.0 -1.0e+31 PlasmaWaves ACMagneticField HFWR 16 kHz Mag Field Antenna Bv 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). HFWR_Bv16K HFWR 16 kHz Mag Field Antenna Bv nT HFWR_Bv16K E12.4 -200.0 200.0 -1.0e+31 PlasmaWaves ACMagneticField HFWR 16 kHz Mag Field Antenna Bz 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). HFWR_Bz16K HFWR 16 kHz Mag Field Antenna Bz When FFT is applied, Filter Rolls off at 25 kHz nT HFWR_Bz16K E12.4 -200.0 200.0 -1.0e+31 PlasmaWaves ACMagneticField DATA_QUALITY 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). DATA_QUALITY DATA_QUALITY 0 = OK, 1 = poor (0=OK,1=Poor) DATA_QUALITY I1 0 1 -1 Other