Abstract

Remote measurements of trace species with a cw CO2 DIAL system suffer from errors caused by unknown variations of the target reflectivity with wavelength. Information on the mineral content of the ground gained by an airborne four-wavelength CO2 DIAL system can be used to correct remote trace species measurements performed by the same apparatus. Reflectance data in the CO2 laser spectral region for various rock and soil types are presented. The mineral content was determined by x-ray analysis. The technical performance of a two-wavelength airborne CO2 DIAL system was field tested by different methods, such as correlation techniques and comparison of target reflection data taken in the laboratory, and by remote measurements.

© 1985 Optical Society of America

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