Tropical Pacific Drifting Buoys M.S. Swenson / AOML, Miami

At the end of May there were 245 satellite-tracked drifting buoys, of which 71% had subsurface drogues intact, in operation for the WOCE/CLIVAR Surface Velocity Program in the tropical Pacific Ocean. The SEC and NEC are nearly normal for this time of the year. The surface expression of the NECC is evident between 150W and 110W. SST anomalies at the end of the month are positive in the equatorial strip (<= 1 degree C), except near the Galapagos Islands where negative anomalies (1-2 degrees C) are evident. Strong positive anomalies (2-3 degrees C) are found near the American coast near 120W, 25N.

FIGURE T26 - Movements of drifting buoys in the tropical Pacific Ocean during May 1995. The linear segments of the trajectories represents two week displacements. Solid (red) paths show buoys drogued to 15-m depth; dotted (blue) paths show undrogued buoys.