Figure 3: (Top) Scatter plots of the drifter versus the OSCAR data for the PAC2 region and the entire period (Oct. 1992-Oct. 2005). The indicated coefficients and lines are defined as in Figure 2. (Bottom) Histograms of the difference between the OSCAR and drifter data for the PAC2 region, and the entire period. The red curve represents the Gaussian function plotted using the same mean and standard deviation (std) as the data. The abscissa of the vertical dashed red lines are equal to the data-estimated meanstd. If the Gaussian curve fits the histogram, the region comprised within the vertical dashed red lines spans approximately 68% of the measurements.