Table 3: 3σ values of plasma flow velocities determined from all flow velocities recorded in plasma sheet regions during one tail season (July–October). Values are used as thresholds in determination of the percentage of high speed flow during region intervals.

YearHIA Vpar (km s−1)HIA Vperp (km s−1)CODIF H1 Vpar (km s−1)CODIF H1 Vperp (km s−1)

2001182141243164
2002208137356257
2003185189274216
2004174128286206
2005160126332257
2006144150334284
2007132123368325
2008131134402378
20099995260240