1. A process for the interpretation of remotely sensed data including the steps of: sensing data in a plurality of wave bands by means of remote sensors; adjusting the sensed data to correct for non-linearity of the remote sensors; dividing an adjusted signal at a first selected one of the plurality of wave bands by an adjusted signal at a second selected one of the plurality of wave bands; thresholding a signal representing the result of the division; displaying the thresholded signal; and comparing the displayed signal with original data and interpreting the differences.