ABOVE Level-2 Amplitude and Phase of VLF transmitter signals at Pinawa (pina)

2023-06-21 17:04:35

Amplitude and phase for narrowband transmitters at
ABOVE site Pinawa, Manitoba, Lat: 50.16, Lon: -96.08. 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.

CDF

PT1M

Epoch

Phase ndk-pina

abv_phase_pina_ndk

Phase of VLF transmitter NDK observed at pina.
Phases for upper (space) and lower (mark) frequencies have been combined. Phase is calculated along direction of maximum amplitude.

radians

Amplitude ndk-pina

abv_amp_pina_ndk

Amplitude of VLF transmitter NDK observed at pina.
Amplitude is calculated separately for North-South and East-West antennas.

ADC units

Bearing ndk-pina

abv_bearing_pina_ndk

Bearing to VLF transmitter NDK observed at pina.
Bearing direction is based on amplitudes from the 2 antennas and always between 0 (N/S) and 90 (E/W) degrees.

degrees

Phase naa-pina

abv_phase_pina_naa

Phase of VLF transmitter NAA observed at pina.
Phases for upper (space) and lower (mark) frequencies have been combined. Phase is calculated along direction of maximum amplitude.

radians

Amplitude naa-pina

abv_amp_pina_naa

Amplitude of VLF transmitter NAA observed at pina.
Amplitude is calculated separately for North-South and East-West antennas.

ADC units

Bearing naa-pina

abv_bearing_pina_naa

Bearing to VLF transmitter NAA observed at pina.
Bearing direction is based on amplitudes from the 2 antennas and always between 0 (N/S) and 90 (E/W) degrees.

degrees

Phase nlk-pina

abv_phase_pina_nlk

Phase of VLF transmitter NLK observed at pina.
Phases for upper (space) and lower (mark) frequencies have been combined. Phase is calculated along direction of maximum amplitude.

radians

Amplitude nlk-pina

abv_amp_pina_nlk

Amplitude of VLF transmitter NLK observed at pina.
Amplitude is calculated separately for North-South and East-West antennas.

ADC units

Bearing nlk-pina

abv_bearing_pina_nlk

Bearing to VLF transmitter NLK observed at pina.
Bearing direction is based on amplitudes from the 2 antennas and always between 0 (N/S) and 90 (E/W) degrees.

degrees

Phase nwc-pina

abv_phase_pina_nwc

Phase of VLF transmitter NWC observed at pina.
Phases for upper (space) and lower (mark) frequencies have been combined. Phase is calculated along direction of maximum amplitude.

radians

Amplitude nwc-pina

abv_amp_pina_nwc

Amplitude of VLF transmitter NWC observed at pina.
Amplitude is calculated separately for North-South and East-West antennas.

ADC units

Bearing nwc-pina

abv_bearing_pina_nwc

Bearing to VLF transmitter NWC observed at pina.
Bearing direction is based on amplitudes from the 2 antennas and always between 0 (N/S) and 90 (E/W) degrees.

degrees

Phase npm-pina

abv_phase_pina_npm

Phase of VLF transmitter NPM observed at pina.
Phases for upper (space) and lower (mark) frequencies have been combined. Phase is calculated along direction of maximum amplitude.

radians

Amplitude npm-pina

abv_amp_pina_npm

Amplitude of VLF transmitter NPM observed at pina.
Amplitude is calculated separately for North-South and East-West antennas.

ADC units

Bearing npm-pina

abv_bearing_pina_npm

Bearing to VLF transmitter NPM observed at pina.
Bearing direction is based on amplitudes from the 2 antennas and always between 0 (N/S) and 90 (E/W) degrees.

degrees

Phase nrk-pina

abv_phase_pina_nrk

Phase of VLF transmitter NRK observed at pina.
Phases for upper (space) and lower (mark) frequencies have been combined. Phase is calculated along direction of maximum amplitude.

radians

Amplitude nrk-pina

abv_amp_pina_nrk

Amplitude of VLF transmitter NRK observed at pina.
Amplitude is calculated separately for North-South and East-West antennas.

ADC units

Bearing nrk-pina

abv_bearing_pina_nrk

Bearing to VLF transmitter NRK observed at pina.
Bearing direction is based on amplitudes from the 2 antennas and always between 0 (N/S) and 90 (E/W) degrees.

degrees

Phase wwvb-pina

abv_phase_pina_wwvb

Phase of VLF transmitter WWVB observed at pina.
Phases for upper (space) and lower (mark) frequencies have been combined. Phase is calculated along direction of maximum amplitude.

radians

Amplitude wwvb-pina

abv_amp_pina_wwvb

Amplitude of VLF transmitter WWVB observed at pina.
Amplitude is calculated separately for North-South and East-West antennas.

ADC units

Bearing wwvb-pina

abv_bearing_pina_wwvb

Bearing to VLF transmitter WWVB observed at pina.
Bearing direction is based on amplitudes from the 2 antennas and always between 0 (N/S) and 90 (E/W) degrees.

degrees