Version:2.5.0
NumericalData
ResourceID
spase://CSA/NumericalData/GO-ABOVE/VLF/L2/LuckyLake/PT1M
ResourceHeader
ResourceName
ABOVE Level-2 Amplitude and Phase of VLF transmitter signals at Lucky Lake (LUCK)
ReleaseDate
2023-06-21 17:04:35
RevisionHistory
RevisionEvent
ReleaseDate
2022-10-25 11:50:20
Note
Added Name field to the AccessURL and modified RepositoryID
RevisionEvent
ReleaseDate
2022-12-27 11:50:20
Note
Added Parameter Key and modified Parameter Names and Descriptions
Description
Amplitude and phase for narrowband transmitters at
ABOVE site Lucky Lake, Saskatchewan, Lat: 51.15, Lon: -107.26. The
Array for Broadband Observations of VLF/ELF Emissions (ABOVE)
Level-2 CDF files of Amplitude, Phase and Bearing at 1 minute
resolution for seven VLF transmitters as observed from each station
of the ABOVE array.
The VLF transmitters observed are:
NDK (LaMoure, North Dakota, 46.37 N, 98.33 W, 25.2 kHz)
NAA (Cutler, Maine, 44.64 N, 67.29 W, 24.0 kHz),
NLK (Seattle, Washington, 48.20 N 121.92 W, 24.8 kHz)
NWC (Exmouth, Western Australia, 21.82 S, 114.16 E, 19.8 kHz)
NPM (Lualualei, Hawaii, 21.42 N, 158.15 W, 21.4 kHz)
NRK (Keflavik, Iceland, 63.85 N, 22.45 W, 37.5 kHz)
WWVB (Fort Collins, Colorado, 40.68 N, 105.05 W, 60 kHz)
GO-ABOVE is a ground‐based array of VLF radio receivers located across Canada and run as a part of the Canadian Space Agency's Geospace Observatory (GO). The ABOVE instruments are situated in two north‐south chains in Alberta and Manitoba, through the region roughly from L = 3 through L = 8. The ABOVE instruments monitor electromagnetic waves in a frequency range from 100 Hz to 75 kHz, covering chorus and hiss emissions as well as U.S. Navy transmitters near 25 kHz. The absolute timing accuracy is 10 ns, from GPS.
Acknowledgement
Please include the following in any publications using this data: Infrastructure funding for ABOVE is provided by the Canada Foundation for Innovation and the province of Alberta. ABOVE data used in this work was collected with the support of the Canadian Space Agency Geospace Observatory (GO Canada) contribution initiative.
Contacts
AccessInformation
RepositoryID
AccessURL
Name
GO-ABOVE CDFs from University of Calgary Space Physics Data Page
URL
Description
Directory tree to access Level-1 and Level-2 CDF data.
Format
CDF
InstrumentIDs
MeasurementType
Waves.Passive
TemporalDescription
TimeSpan
StartDate
2014-08-13 18:00:00
StopDate
2019-10-01 05:45:00
Cadence
PT1M
SpectralRange
RadioFrequency
ObservedRegion
Earth.NearSurface.Ionosphere
Parameter #1
Parameter #2
Name
Phase ndk-luck
ParameterKey
abv_phase_luck_ndk
Description
Phase of VLF transmitter NDK observed at luck.
Phases for upper (space) and lower (mark) frequencies have been combined. Phase is calculated along direction of maximum amplitude.
Units
radians
Field
Qualifier
PhaseAngle
FieldQuantity
Magnetic
Parameter #3
Name
Amplitude ndk-luck
ParameterKey
abv_amp_luck_ndk
Description
Amplitude of VLF transmitter NDK observed at luck.
Amplitude is calculated separately for North-South and East-West antennas.
Units
ADC units
Field
Qualifier
Average
FieldQuantity
Magnetic
Parameter #4
Name
Bearing ndk-luck
ParameterKey
abv_bearing_luck_ndk
Description
Bearing to VLF transmitter NDK observed at luck.
Bearing direction is based on amplitudes from the 2 antennas and always between 0 (N/S) and 90 (E/W) degrees.
Units
degrees
Field
Qualifier
DirectionAngle
FieldQuantity
Magnetic
Parameter #5
Name
Phase naa-luck
ParameterKey
abv_phase_luck_naa
Description
Phase of VLF transmitter NAA observed at luck.
Phases for upper (space) and lower (mark) frequencies have been combined. Phase is calculated along direction of maximum amplitude.
Units
radians
Field
Qualifier
PhaseAngle
FieldQuantity
Magnetic
Parameter #6
Name
Amplitude naa-luck
ParameterKey
abv_amp_luck_naa
Description
Amplitude of VLF transmitter NAA observed at luck.
Amplitude is calculated separately for North-South and East-West antennas.
Units
ADC units
Field
Qualifier
Average
FieldQuantity
Magnetic
Parameter #7
Name
Bearing naa-luck
ParameterKey
abv_bearing_luck_naa
Description
Bearing to VLF transmitter NAA observed at luck.
Bearing direction is based on amplitudes from the 2 antennas and always between 0 (N/S) and 90 (E/W) degrees.
Units
degrees
Field
Qualifier
DirectionAngle
FieldQuantity
Magnetic
Parameter #8
Name
Phase nlk-luck
ParameterKey
abv_phase_luck_nlk
Description
Phase of VLF transmitter NLK observed at luck.
Phases for upper (space) and lower (mark) frequencies have been combined. Phase is calculated along direction of maximum amplitude.
Units
radians
Field
Qualifier
PhaseAngle
FieldQuantity
Magnetic
Parameter #9
Name
Amplitude nlk-luck
ParameterKey
abv_amp_luck_nlk
Description
Amplitude of VLF transmitter NLK observed at luck.
Amplitude is calculated separately for North-South and East-West antennas.
Units
ADC units
Field
Qualifier
Average
FieldQuantity
Magnetic
Parameter #10
Name
Bearing nlk-luck
ParameterKey
abv_bearing_luck_nlk
Description
Bearing to VLF transmitter NLK observed at luck.
Bearing direction is based on amplitudes from the 2 antennas and always between 0 (N/S) and 90 (E/W) degrees.
Units
degrees
Field
Qualifier
DirectionAngle
FieldQuantity
Magnetic
Parameter #11
Name
Phase nwc-luck
ParameterKey
abv_phase_luck_nwc
Description
Phase of VLF transmitter NWC observed at luck.
Phases for upper (space) and lower (mark) frequencies have been combined. Phase is calculated along direction of maximum amplitude.
Units
radians
Field
Qualifier
PhaseAngle
FieldQuantity
Magnetic
Parameter #12
Name
Amplitude nwc-luck
ParameterKey
abv_amp_luck_nwc
Description
Amplitude of VLF transmitter NWC observed at luck.
Amplitude is calculated separately for North-South and East-West antennas.
Units
ADC units
Field
Qualifier
Average
FieldQuantity
Magnetic
Parameter #13
Name
Bearing nwc-luck
ParameterKey
abv_bearing_luck_nwc
Description
Bearing to VLF transmitter NWC observed at luck.
Bearing direction is based on amplitudes from the 2 antennas and always between 0 (N/S) and 90 (E/W) degrees.
Units
degrees
Field
Qualifier
DirectionAngle
FieldQuantity
Magnetic
Parameter #14
Name
Phase npm-luck
ParameterKey
abv_phase_luck_npm
Description
Phase of VLF transmitter NPM observed at luck.
Phases for upper (space) and lower (mark) frequencies have been combined. Phase is calculated along direction of maximum amplitude.
Units
radians
Field
Qualifier
PhaseAngle
FieldQuantity
Magnetic
Parameter #15
Name
Amplitude npm-luck
ParameterKey
abv_amp_luck_npm
Description
Amplitude of VLF transmitter NPM observed at luck.
Amplitude is calculated separately for North-South and East-West antennas.
Units
ADC units
Field
Qualifier
Average
FieldQuantity
Magnetic
Parameter #16
Name
Bearing npm-luck
ParameterKey
abv_bearing_luck_npm
Description
Bearing to VLF transmitter NPM observed at luck.
Bearing direction is based on amplitudes from the 2 antennas and always between 0 (N/S) and 90 (E/W) degrees.
Units
degrees
Field
Qualifier
DirectionAngle
FieldQuantity
Magnetic
Parameter #17
Name
Phase nrk-luck
ParameterKey
abv_phase_luck_nrk
Description
Phase of VLF transmitter NRK observed at luck.
Phases for upper (space) and lower (mark) frequencies have been combined. Phase is calculated along direction of maximum amplitude.
Units
radians
Field
Qualifier
PhaseAngle
FieldQuantity
Magnetic
Parameter #18
Name
Amplitude nrk-luck
ParameterKey
abv_amp_luck_nrk
Description
Amplitude of VLF transmitter NRK observed at luck.
Amplitude is calculated separately for North-South and East-West antennas.
Units
ADC units
Field
Qualifier
Average
FieldQuantity
Magnetic
Parameter #19
Name
Bearing nrk-luck
ParameterKey
abv_bearing_luck_nrk
Description
Bearing to VLF transmitter NRK observed at luck.
Bearing direction is based on amplitudes from the 2 antennas and always between 0 (N/S) and 90 (E/W) degrees.
Units
degrees
Field
Qualifier
DirectionAngle
FieldQuantity
Magnetic
Parameter #20
Name
Phase wwvb-luck
ParameterKey
abv_phase_luck_wwvb
Description
Phase of VLF transmitter WWVB observed at luck.
Phases for upper (space) and lower (mark) frequencies have been combined. Phase is calculated along direction of maximum amplitude.
Units
radians
Field
Qualifier
PhaseAngle
FieldQuantity
Magnetic
Parameter #21
Name
Amplitude wwvb-luck
ParameterKey
abv_amp_luck_wwvb
Description
Amplitude of VLF transmitter WWVB observed at luck.
Amplitude is calculated separately for North-South and East-West antennas.
Units
ADC units
Field
Qualifier
Average
FieldQuantity
Magnetic
Parameter #22
Name
Bearing wwvb-luck
ParameterKey
abv_bearing_luck_wwvb
Description
Bearing to VLF transmitter WWVB observed at luck.
Bearing direction is based on amplitudes from the 2 antennas and always between 0 (N/S) and 90 (E/W) degrees.
Units
degrees
Field
Qualifier
DirectionAngle
FieldQuantity
Magnetic
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