Visible And Infrared Extinction And Precipitation Rate In Falling Snow

Visible and infrared extinction in falling snow as observed by conventional transmissometers has shown a spectral dependence such that extinction increases with increasing wavelength in the absence of coexisting fog. Explanations of this wavelength dependence are given and techniques for modeling visible and infrared transmittance through falling snow are discussed. The spectral dependence may be used in the remote sensing of mass concentration and precipitation rate of falling snow.