The float was launched in a triad with NPS#9 and NPS#12 about 100 km southwest of San Francisco (Figure 2). The floats in the triad were launched in a nearly equilateral triangular pattern with a side of about 8 km. Two floats in the triad were situated approximately above the 1500-m isobath, about 50 km from Point Arena, while the third was launched at the offshore apex of the triangle.
The float moved westward almost immediately after launch, never encountering the undercurrent Figure 1. On January 27, 1994 the float was entrained by an anticyclonic eddy (Figure 4) with diameter of 54 km and period of 21 days
Number of loops 4 Diameter, km 54.2 Duration, days 83 Period, days 21 Swirl velocity, cm/s 9.5 Translation velocity, cm/s 1.1 Direction, degrees 296 Rossby number 0.04 
and remained there till the end of the mission.The pressure trancducer malfunctioned but the temperature record suggests that it was a depth of just less than 300 dbar (Figure 3).