DRP-4DVar-based Coupled Data Assimilation for Decadal Climate Prediction
To investigate the impact of the initialization on the prediction skill of FGOALS-g2, thirty six sets of 10-year-long hindcasts were conducted with the analysis as initial conditions, starting from 1961 and then every year until 1996 with ten ensemble members generated by a Lagged Average Forecast method (Hoffman et al. 1983). Higher decadal prediction skills on these climate variabilities were basically achieved. In particular, significant improvements in both precipitation and surface air temperature in summer over the TP in terms of the spatial distribution and annual variability were sighted, comparing with the results from the uninitialized simulation.
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