Measurement of Spectroscopic Transmittivity of Deposite

Monochromatic lights，whose light source was a W-lamp and wave-lengths were between 4000 A and 6800 A，have been transmitted through a thin layer of deposited snow. The intensities of the transmitted lights have been detected with use of a photomu1tiplier and the spectroscopic transmittivity of the deposited snow has been decided. The spectroscopic energy distribution of the light source has also been reported