AOML
NOAA

The GDP Drifter Data Assembly Center (DAC)

Animations


Drifter Animations of surface currents in different areas
Animations of seasonal currents (arrows)
and current speed (shading, cm per second)
derived from surface drifter observations.

Animations of time-mean currents plus variations correlated
with the Southern Oscillation Index (SOI)
lowpassed at five months (arrows)
and current speed (shading, cm per second)
derived from surface drifter observations .
In these animations, the SOI oscillates from -3 (strong El Niño) to
+3 (strong La Niña) and back.


Evolution of the Global Drifter Array

For further information, see Mean Velocity Estimates from drifters .