Methods and facilities for determining the motion parameters of clouds at various altitudes of the troposphere in the daytime and nighttime

摘要

This paper proposes methods that make it possible to use a scanning hemispherical radiometer (wavelength range 8-13 μm) to determine the height of the lower limit, the direction, and the speed of motion of clouds in the daytime and nighttime at various heights of the troposphere. Experimental results are presented concerning the variability of the structure of the radiation fields and of various speeds and directions of motion of the clouds. A transition is designated to an improved measurement system using an IR array.