Near-surface velocity climatology for the global ocean from drifter observations

Time-mean and seasonal climatology of near-surface currents for the world, at quarter-degree and 15-day resolution, calculated from observations from satellite-tracked 15-m drogued and undrogued drifters of the NOAA's Global Drifter Program. This climatology incorporates more than 29 million, six hour position/velocity estimates scattered throughout the world’s ice-free oceans, from February 1979 to June 2015.