2.5.0
spase://CSA/NumericalData/GO-ABOVE/VLF/L2/Camrose/PT1M
ABOVE Level-2 Amplitude and Phase of VLF transmitter signals at Camrose (cmrs)
2023-06-21T17:04:35
2022-10-25T11:50:20
Added Name field to the AccessURL and modified RepositoryID
2022-12-27T11:50:20
Added Parameter Key and modified Parameter Names and Descriptions
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.
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.
spase://SMWG/Person/C.M.Cully
PrincipalInvestigator
spase://SMWG/Person/Leonard.N.Garcia
MetadataContact
spase://CSA/Repository/UCalgary
GO-ABOVE CDFs from University of Calgary Space Physics Data Page
https://data.phys.ucalgary.ca/sort_by_instrument/vlf/GO-Canada_ABOVE/CDF/
Directory tree to access Level-1 and Level-2 CDF data.
CDF
spase://SMWG/Instrument/Camrose/VLF
Waves.Passive
2014-08-13T18:00:00
2019-10-01T05:45:00
PT1M
RadioFrequency
Earth.NearSurface.Ionosphere
Epoch
Temporal
Phase ndk-cmrs
abv_phase_cmrs_ndk
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.
radians
PhaseAngle
Magnetic
Amplitude ndk-cmrs
abv_amp_cmrs_ndk
Amplitude of VLF transmitter NDK observed at cmrs.
Amplitude is calculated separately for North-South and East-West antennas.
ADC units
Average
Magnetic
Bearing ndk-cmrs
abv_bearing_cmrs_ndk
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.
degrees
DirectionAngle
Magnetic
Phase naa-cmrs
abv_phase_cmrs_naa
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.
radians
PhaseAngle
Magnetic
Amplitude naa-cmrs
abv_amp_cmrs_naa
Amplitude of VLF transmitter NAA observed at cmrs.
Amplitude is calculated separately for North-South and East-West antennas.
ADC units
Average
Magnetic
Bearing naa-cmrs
abv_bearing_cmrs_naa
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.
degrees
DirectionAngle
Magnetic
Phase nlk-cmrs
abv_phase_cmrs_nlk
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.
radians
PhaseAngle
Magnetic
Amplitude nlk-cmrs
abv_amp_cmrs_nlk
Amplitude of VLF transmitter NLK observed at cmrs.
Amplitude is calculated separately for North-South and East-West antennas.
ADC units
Average
Magnetic
Bearing nlk-cmrs
abv_bearing_cmrs_nlk
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.
degrees
DirectionAngle
Magnetic
Phase nwc-cmrs
abv_phase_cmrs_nwc
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.
radians
PhaseAngle
Magnetic
Amplitude nwc-cmrs
abv_amp_cmrs_nwc
Amplitude of VLF transmitter NWC observed at cmrs.
Amplitude is calculated separately for North-South and East-West antennas.
ADC units
Average
Magnetic
Bearing nwc-cmrs
abv_bearing_cmrs_nwc
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.
degrees
DirectionAngle
Magnetic
Phase npm-cmrs
abv_phase_cmrs_npm
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.
radians
PhaseAngle
Magnetic
Amplitude npm-cmrs
abv_amp_cmrs_npm
Amplitude of VLF transmitter NPM observed at cmrs.
Amplitude is calculated separately for North-South and East-West antennas.
ADC units
Average
Magnetic
Bearing npm-cmrs
abv_bearing_cmrs_npm
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.
degrees
DirectionAngle
Magnetic
Phase nrk-cmrs
abv_phase_cmrs_nrk
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.
radians
PhaseAngle
Magnetic
Amplitude nrk-cmrs
abv_amp_cmrs_nrk
Amplitude of VLF transmitter NRK observed at cmrs.
Amplitude is calculated separately for North-South and East-West antennas.
ADC units
Average
Magnetic
Bearing nrk-cmrs
abv_bearing_cmrs_nrk
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.
degrees
DirectionAngle
Magnetic
Phase wwvb-cmrs
abv_phase_cmrs_wwvb
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.
radians
PhaseAngle
Magnetic
Amplitude wwvb-cmrs
abv_amp_cmrs_wwvb
Amplitude of VLF transmitter WWVB observed at cmrs.
Amplitude is calculated separately for North-South and East-West antennas.
ADC units
Average
Magnetic
Bearing wwvb-cmrs
abv_bearing_cmrs_wwvb
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.
degrees
DirectionAngle
Magnetic