We present evaluations of two-dimensional surface current fields based on quantitative comparisons of satellite images with numerical model results provided by the German Federal Maritime and Hydrographic Agency (BSH). Earlier studies have shown that multi-sensor data can be used to derive sea surface. However, a quantitative evaluation of the resulting vector fields is difficult, due to the low availability of in-situ measurements. Current predictions made by numerical models are of higher resolution, but still below the resolution of the computed currents. Additionally, they predict the currents for coarser water-depth intervals rather than the currents on the very surface. Thus, we explore different spatial interpolation methods and present the resulting comparisons.