Method and apparatus for calculating the optical thickness and microphysics of clouds

摘要

A method and apparatus for calculating optical thickness and microphysical quantities of clouds are provided. In the above method, for the effective pixel of the input cloud, the device obtains the cloud reflectance at the cloud top altitude by using the reflectance value that arrives at the visible channel of the input satellite and the reflectivity value that arrives at the near-infrared channel, The cloud reflectivity of the visible channel and the cloud reflectivity of the near-infrared channel are calculated based on the obtained cloud reflectivity. And the device calculates the cloud optical thickness and the effective radius of cloud particles based on the calculated cloud reflectivity of the visible channel and the calculated cloud reflectivity of the near-infrared channel.