40562_2016_44_MOESM3_ESM.png (2.8 MB)
MOESM3 of Relation of the auroral substorm to the substorm current wedge
figure
posted on 2016-04-12, 05:00 authored by Robert McPherron, Xiangning ChuAdditional file 3: Figure S3. Auroral luminosity on a northâsouth meridian over Fort Yukon as function of time. Keogram for Fort Yukon, NWT, Canada for the interval 08-10 UT is shown. Intense aurora was observed in association with fast flows at 08:56 and 09:38 UT. The first at 09:01:42 caused a poleward expansion. The next two appear to be effects of surges moving westward over the station.