Abstract: Effective removal of atmospheric contamination for a sequence of satellite olor scanner ocean imagery is achieved through determination of an optimum Angstrom exponent for weighting data in a plurality of channels of different wavelengths by the method of providing a refresh plane display for data from one channel, weighting data from a selected reference channel as determined by an Angstrom exponent, interacting the weighted reference channel data with the data in the plane by subtraction therefrom to reveal atmospheric aersol bands, varying the Angstrom exponent to determine an optimum value at which the aerosol bands become transparent, and then weighting data from each of the channels by use of that optimum value.