Fig. 6From: Penetration electric fields observed at middle and low latitudes during the 22 June 2015 geomagnetic stormLine of sight velocity map constructed with two SuperDARN radars in the northern America and two radars in Japan. The blue and green colors of the velocity refer to toward the radar and red refers to away from the radar. The radars detected the sunward (12 MLT to the top) flow (red) at 1940 UT during the storm main phase and anti-sunward flow (green) equatorward of the sunward flow at 2014 UT during the impulsive electric field eventBack to article page