Retrieval of Cirrus Radiative and Spatial Properties Using Coincident Multispectral Imager and Sounder Satellite Data,
UTAH UNIV SALT LAKE CITY DEPT OF METEOROLOGY
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In addition to the wide variability in properties common for the other types of clouds, cirrus clouds have trausmissivity values to that span the entire possible domain 0 tl. This variability adds complexity to the analysis of cirrus clouds. In comparison to opaque clouds, uncertainties exist in thin cirrus cloud amount, altitude, thickness, and optical properties as retrieved from satellite because the measured cirrus signal is affected additionally by an unknown radiation component from below. Cirrus radiative and spatial properties are derived using HIRS CO2 Slicing and multispectral AVHRR imager techniques. Each of these models is based on radiative transfer principles that intrinsically account for both the semi-transparent nature of thin cirrus clouds and the attenuation effect of atmospheric water vapor in the MWJR and LWIR thermal window regions.