A method for measuring ocean surface currents using a long-range single station high frequency ground wave radar system includes the steps of forming a rectilinear grid based region, dividing the rectilinear grid into a plurality of sub-regions each having a uniform surface current flow therewithin, spanning each sub-region with a predetermined plurality of radial beam lines from the single radar station, dividing each radial beam line into a pre-selected plurality of radial sub-nodes, measuring radial surface current vector projection at each radial sub-node, inputting each radial surface current vector projection into a multiple regression model having two regressors, determining, with the multiple regression model, surface vector components along each of x and y axis, storing the surface vector components determined in step (g) to a database, and editing, with equation of continuity based algorithm, plurality of surface vector components stored in the database.