geo-electric field storm data in China in 2015

1-the data bag includes two Geo-electric field storm in 2015. 
   The  0317 represents the Geo-electric field storm data on March 17; 6-22  represents the Geo-electric field storm data on June 22;
   
2-the time is local time (UTC+8), 03/15 00:00-03/20 23:59 of 2015, or 06/20 00:00-06/25 23:59 of 2015;

3- from left to right, each column represents NS,EW,NE, ns, ew, nw

4-The unit of value is mV/km.