Radar Lookup Table

Below is a list of all SuperDARN radars separated by hemisphere. In the table, SuperDARN Canada radars are highlighted in green. Radars that are no longer operational (decommissioned) are shown in red.
Click on each radar name to open an overview of the radar, a diagram of its field of view from above the corresponding geographic pole, and current technical information. Descriptions of each parameter given are discussed in the table at the bottom. Linked are the PI for each radar and their institution for further information. The values for magnetic coordinates presented here are calculated using AACGM coordinates, and may deviate from the exact true value at time of reading. We advise that you calculate your own Geomagnetic coordinates for the specific time periods of your study if being used for scientific purposes, the values quoted here are for general reference only. Last update: 28th August 2020

Northern Hemisphere Coverage
Southern Hemisphere Coverage

The above diagrams show field of view in grey for each radar in the Northern (left) and Southern (right) hemispheres. Both diagrams are viewing Earth from above the corresponding geographic pole, where the concentric circles are showing the geographic latitude. Each black square is a radar station, labeled by its unique 3 letter code. The landmasses are shown in green.

Northern Hemisphere Radars

Code Station ID Radar PI Institution

Southern Hemisphere Radars

Code Station ID Radar PI Institution

Parameter Descriptions

Parameter Description
Code Three letter code designated to each radar.
Station ID Unique numerical value assigned to each radar.
Geographic Latitude/Longitude Geographic latitude is the measurement of distance north or south of the Equator in degrees. Latitude is positive north of the equator and negative south of the equator. A value of 0° is the equator, a value of 90° is the Geographic North Pole, and conversely -90° is the Geographic South Pole. Geographic longitude is the distance in degrees east or west of the Prime Meridian, the imaginary line between the North and South pole that goes through Greenwich in the U.K. (as is the convention). West longitudes are negative in this instance.
Geomagnetic Latitude/Longitude The magnetic poles of Earth are offset from the Geographic poles, as such the Geomagnetic potision on Earth is slightly different and defined through the Geomagnetic poles which are found as the axis of the geomagnetic dipole. To further complicate this picture, the geomagntic poles also drift. To read more on geomagnetic poles and drift see this article. The magnetic field values presented here are calculated using the AACGM, and may deviate from the exact true value at time of reading. We advise that you calculate your own Geomagnetic coordinates for the specific time periods of your study if being used for scientific purposes, the values quoted here are for general reference only.
Boresite Direction of the center beam, measured in degrees relative to geographic north.
Elevation Height of radar in meters above sea level.
Beams The maximum number of beams the radar can form. Usually between 16 and 24. (It is important to specify the true maximum. This will assure that a given beam number always points in the same direction. A subset of these beams, e.g. 8-23, can be used for standard 16 beam operation.)
Gates The maximum number of range gates from which the radar can receive data. Usually between 75 and 225. (This is used for allocation of array storage.)
Starting Year Year at which the radar begin taking data.
Scanning Direction The direction in which the radar progresses from beam to beam in teh field of view.
Config Valid From As the current configuration is shown, this parameter denotes when this configuration started. 'Start' denotes that the configuration has not changed since the construction fo the radar.
Beam Separation Angular separation in degrees between adjacent beams. Normally 3.24 degrees
Velocity Sign The sign of the velocity direction, either +1 or -1, usually +1.(At the radar level, backscattered signals with frequencies above the transmitted frequency are assigned positive Doppler velocities while backscattered signals with frequencies below the transmitted frequency are assigned negative Doppler velocity. This convention can be reversed by changes in receiver design or in the data samping rate. This parameter is set to +1 or -1 to maintain the convention.)
TDiff Propagation time from interferometer array antenna to phasing matrix input minus propagation time from main array antenna through transmitter to phasing matrix input. If the signal from the interferometer comes first, then tdiff < 0
Phase Sign The sign of the phase shift between interferometer and main array, either +1 or -1, usually +1. (Cabling errors can lead to a 180 degree shift of the interferometry phase measurement. +1 indicates that the sign is correct, -1 indicates that it must be flipped.
Interferometer Position Displacement of midpoint of interferometer array from midpoint of main array. This is given in meters in Cartesian coordinates. X is along the line of antennas with +X toward higher antenna numbers, Y is along the array normal direction with +Y in the direction of the array normal. Z is the altitude difference, +Z up.
*Attenuation Step *For analog receivers* The step size of the receiver attenuation in dB.
*Attentuation Stages *For analog receivers* The maximum number of steps of analog attenuation in the receiver. (This is used for gain control of an analog receiver or front-end.)
*Receiver Rise Time *For analog receivers* The rise time of the analog receiver, in microseconds. (Time delays of less than ~10 microseconds can be ignored. If narrow-band filters are used in analog receivers or front-ends, the time delays should be specified.)

Further Information

Previous configurations can be found in the hardware files for each radar, which can be found on the SuperDARN Github or by contacting the radars PI, found in the above tables.

This information is updated frequently using pyDARN and the AACGM Python wrapper. The DOI's for these software tools are pyDARN: DOI, AACGM Python Wrapper: DOI. The AACGM was developed at Dartmouth College, by Simon Shepherd: 10.1002/2014JA020264.

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