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ABOVE Level-2 Amplitude and Phase of VLF transmitter signals at Camrose (cmrs)

ResourceID
spase://CSA/NumericalData/GO-ABOVE/VLF/L2/Camrose/PT1M

Description
Amplitude and phase for narrowband transmitters at ABOVE site Camrose, Alberta Lat: 53.08, Long: -112.54. 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.

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NumericalData

ResourceID
spase://CSA/NumericalData/GO-ABOVE/VLF/L2/Camrose/PT1M
ResourceHeader
ResourceName
ABOVE Level-2 Amplitude and Phase of VLF transmitter signals at Camrose (cmrs)
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 Camrose, Alberta Lat: 53.08, Long: -112.54. 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
Role Person StartDate StopDate Note
1. PrincipalInvestigator spase://SMWG/Person/C.M.Cully
2. MetadataContact spase://SMWG/Person/Leonard.N.Garcia

AccessInformation
RepositoryID
spase://CSA/Repository/UCalgary
AccessURL
Name
GO-ABOVE CDFs from University of Calgary Space Physics Data Page
URL
https://data.phys.ucalgary.ca/sort_by_instrument/vlf/GO-Canada_ABOVE/CDF/
Description
Directory tree to access Level-1 and Level-2 CDF data.
Format
CDF
InstrumentIDs
spase://SMWG/Instrument/Camrose/VLF
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
Name
Epoch
Support
SupportQuantity
Temporal
Parameter #2
Name
Phase ndk-cmrs
ParameterKey
abv_phase_cmrs_ndk
Description
Phase of VLF transmitter NDK observed at cmrs. 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-cmrs
ParameterKey
abv_amp_cmrs_ndk
Description
Amplitude of VLF transmitter NDK observed at cmrs. Amplitude is calculated separately for North-South and East-West antennas.
Units
ADC units
Field
Qualifier
Average
FieldQuantity
Magnetic
Parameter #4
Name
Bearing ndk-cmrs
ParameterKey
abv_bearing_cmrs_ndk
Description
Bearing to VLF transmitter NDK observed at cmrs. 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-cmrs
ParameterKey
abv_phase_cmrs_naa
Description
Phase of VLF transmitter NAA observed at cmrs. 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-cmrs
ParameterKey
abv_amp_cmrs_naa
Description
Amplitude of VLF transmitter NAA observed at cmrs. Amplitude is calculated separately for North-South and East-West antennas.
Units
ADC units
Field
Qualifier
Average
FieldQuantity
Magnetic
Parameter #7
Name
Bearing naa-cmrs
ParameterKey
abv_bearing_cmrs_naa
Description
Bearing to VLF transmitter NAA observed at cmrs. 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-cmrs
ParameterKey
abv_phase_cmrs_nlk
Description
Phase of VLF transmitter NLK observed at cmrs. 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-cmrs
ParameterKey
abv_amp_cmrs_nlk
Description
Amplitude of VLF transmitter NLK observed at cmrs. Amplitude is calculated separately for North-South and East-West antennas.
Units
ADC units
Field
Qualifier
Average
FieldQuantity
Magnetic
Parameter #10
Name
Bearing nlk-cmrs
ParameterKey
abv_bearing_cmrs_nlk
Description
Bearing to VLF transmitter NLK observed at cmrs. 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-cmrs
ParameterKey
abv_phase_cmrs_nwc
Description
Phase of VLF transmitter NWC observed at cmrs. 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-cmrs
ParameterKey
abv_amp_cmrs_nwc
Description
Amplitude of VLF transmitter NWC observed at cmrs. Amplitude is calculated separately for North-South and East-West antennas.
Units
ADC units
Field
Qualifier
Average
FieldQuantity
Magnetic
Parameter #13
Name
Bearing nwc-cmrs
ParameterKey
abv_bearing_cmrs_nwc
Description
Bearing to VLF transmitter NWC observed at cmrs. 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-cmrs
ParameterKey
abv_phase_cmrs_npm
Description
Phase of VLF transmitter NPM observed at cmrs. 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-cmrs
ParameterKey
abv_amp_cmrs_npm
Description
Amplitude of VLF transmitter NPM observed at cmrs. Amplitude is calculated separately for North-South and East-West antennas.
Units
ADC units
Field
Qualifier
Average
FieldQuantity
Magnetic
Parameter #16
Name
Bearing npm-cmrs
ParameterKey
abv_bearing_cmrs_npm
Description
Bearing to VLF transmitter NPM observed at cmrs. 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-cmrs
ParameterKey
abv_phase_cmrs_nrk
Description
Phase of VLF transmitter NRK observed at cmrs. 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-cmrs
ParameterKey
abv_amp_cmrs_nrk
Description
Amplitude of VLF transmitter NRK observed at cmrs. Amplitude is calculated separately for North-South and East-West antennas.
Units
ADC units
Field
Qualifier
Average
FieldQuantity
Magnetic
Parameter #19
Name
Bearing nrk-cmrs
ParameterKey
abv_bearing_cmrs_nrk
Description
Bearing to VLF transmitter NRK observed at cmrs. 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-cmrs
ParameterKey
abv_phase_cmrs_wwvb
Description
Phase of VLF transmitter WWVB observed at cmrs. 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-cmrs
ParameterKey
abv_amp_cmrs_wwvb
Description
Amplitude of VLF transmitter WWVB observed at cmrs. Amplitude is calculated separately for North-South and East-West antennas.
Units
ADC units
Field
Qualifier
Average
FieldQuantity
Magnetic
Parameter #22
Name
Bearing wwvb-cmrs
ParameterKey
abv_bearing_cmrs_wwvb
Description
Bearing to VLF transmitter WWVB observed at cmrs. 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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Last Updated: 2023-06-21