Schmid, B., J. M. Livingston, P. B. Russell, and P. A. Durkee (1997), Three Dimensional Measurements of Lower Tropospheric Aerosol Optical Depth Spectra and Water Vapor Amounts During ACE-2 by Means of Airborne Sunphotometry, EOS Trans. Amer Geophys. Union, 78, F97.