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Abstract
Simple mathematical surfaces are used to interpolate numerically within two-dimensional networks of 500 mb contour heights and winds. The effect on the errors of interpolation of varying (i) the relative weights given to the measured contour heights and winds, (ii) the complexity of the mathematical surface, and (iii) the layout and dimensions of the network is examined. It is concluded that in areas where observations are reasonably dense, numerical analysis will be at least as satisfactory as the currently used subjective graphical method.