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Northern Hemisphere Radar Coverage Map In this graphic of the northern hemisphere showing SuperDARN radar coverage, yellow indicates the existing SuperDARN radar chain; blue, the Canadian PolarDARN chain covering the polar caps; red, the new mid-latitude network being built; and green, the current mid-latitude radars at Blackstone and Wallops Island in Virginia. Courtesy: Rob Barnes, The Johns Hopkins University Applied Physics Laboratory To save photo: |