Time marks (x) are given every 40 hours 
135 
south north ftm) ener ™ densit V i(c™/s)~2 / cph] 
K1 
record no: o91024, sampling interval = 10.0 minutes 
u-component (zonal) Y-component (meridional) 
-20 0 20 
0 
-20 
-40 
-.9. 3.1991 14:10 - 13. 4.1991 8:50 (UTC)