Comparison of NCEP–NCAR Cloud Radiative Forcing Reanalyses with Observations

摘要: Abstract Longwave and shortwave cloud radiative forcing from the recently released National Center for Environmental Prediction–National Atmospheric Research (NCEP–NCAR) reanalyses are compared to Earth Radiation Budget Experiment (ERBE) observations. The observed differences analyzed utilizing concurrent International Satellite Cloud Climatology Project (ISCCP) estimates of cloudiness other satellite results show that NCEP–NCAR longwave agrees well with ERBE not only annual means but also seasonal climatic variations. Areas disagreement generally related disagreements between high Overall, is in poorer agreement Tropics often 20–30 W m−2 too negative. On hand total cover this region 10%–20% less than ISCCP observations, which should lead less...