EOMET-77. Atmospheric Transmission Values Derived From Photographs of the Sea Horizon.

Abstract : The end product of this report is a tabulation of aerosol scattering coefficients at three wavelengths obtained from color photographs of the horizon taken on twenty occasions during the 1977 cruise of the USNS Hayes. In addition, challenging photographs from ten occasions have been analyzed and the scattering coefficients obtained from them are compared with coefficients obtained from the corresponding most promising photographs. Pertinent supporting data are also presented. This includes date, time of day, latitude, longitude, wind direction, ship heading, and cloud type and cover.