Temperature dependence of ice optical constants: Implications for simulating the single-scattering properties of cold ice clouds
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abstract
For a spectrum from ultraviolet to microwave and a temperature range from 160 to 270. K, the optical constants of water ice are compiled on the basis of the Kramers-Kronig relation in conjunction with existing datasets reported in literature. Significant temperature dependence is observed in both the mid-infrared and longer wavelengths. A sensitivity study at wavelengths in the infrared split window region indicates that the temperature dependence of the single-scattering properties of ice crystals is not negligible. Thus, it is necessary to take into account the temperature dependence of ice optical constants when simulating the radiative properties of cirrus clouds for various applications to remote sensing under cirrus cloud conditions. 2011 Elsevier Ltd.
