Abstract

Uncertainty in the spectral dependencies of atmospheric aerosol backscattering and extinction produces an uncertainty in the corresponding correction terms in the DIAL equation used to determine O₃ concentration values, especially in turbid atmospheres where large aerosol backscattering gradients exist. Two ways exist for reducing the systematic distortion in ozone concentration profiles caused by aerosol differential extinction and backscattering, viz. i) to correct the calculated O₃ profile using assumed atmospheric spectral dependencies for extinction (total scattering) and backscattering (the conventional correction method), or ii) to reduce this distortion using new methods for processing an extended DIAL signal set measured simultaneously at a number of wavelengths (the compensational method).

© 1995 Optical Society of America