Airborne Measurements of Atmospheric Volume Scattering Coefficients in Northern Europe, Spring 1976.
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This report presents daytime atmospheric optical data collected chiefly with airborne instruments during a field expedition to northern Europe in the spring of 1976. Results from eight flights are presented. The data include the natural irradiance upon horizontal plane surface, total volume scattering coefficients, atmospheric beam transmittances. Data for daytime conditions ranging from relatively clear and cloud free to completely overcast are presented. Data were measured in four spectral regions, as follows Three narrow band optical filters with mean wavelengths of 478, 664, and 765 nanometers and one broad band sensitivity representing a pseudophotopic response with a mean wavelength of 557 nanometers. Selected meteorological properties, measured concurrently with the radiometric data are also included. Author