The ability of a climate model to capture a realistic seasonal cycle of temperature and precipitation is an important measure of its performance. Here, we present the monthy climatology simulated for the 20th Century. For comparison, climatologies from the NCEP-NCAR Reanalysis Project 1 and climate division data are also presented.
Generally, models show much better agreement with the NCEP reanalysis than climate division data, indicating that model resolution plays an essential role in the simulated monthly climatology.
None of the models is severly unrealisitc in either temperature of
precipitation cycles. However, HADCM and CNRM show particularly good
agreement for both precipitation and temperature. MIROC and CGCM show
problems with winter and spring temperatures. MIROC, CSIRO, and CCSM
show problems for the precipitation annual cycle.
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