_4 = R f•, + (1 -f•,)• (2)The ratio of the spectral albedos is denoted by R,, The satellite data and models used in the study are described in section 2. Comparison of the Nimbus-7 observations against the NCAR CCM and off-line calculations using satelliteretrieved cloud properties are presented in section 3. Sensitivity of the results to systematic biases in the models and observations is discussed in section 4. Implications of the present study for the existence and the spatial and temporal persistence of enhanced cloud absorption are presented in section 5.
Climate Model ConfigurationThe observations are compared against a 9-year integration of the NCAR CCM 3.3 using observed sea surface temperatures. The model is run at T42 horizontal resolution (---2.