Improved intraseasonal variability in the initialization of <scp>SINTEX‐F2</scp> using a spectral cumulus parameterization

A newly developed spectral cumulus parameterization (spectral scheme) was implemented in the Scale Interaction Experiment-Frontier version 2 (SINTEX-F2) seasonal prediction system to improve intraseasonal variability initialization. simple sea surface temperature (SST) nudging scheme using different SST data and restoring times used initialize system, initialized atmosphere obtained from both original convection (Tiedtke new evaluated against observational data. It found that climatology simulated by were comparable those scheme. In addition, represented Madden–Julian oscillation (MJO) better than An analysis of structure organized revealed successful simulation low-level shallow before peak when compared with observation, a result lacking simulation. addition positive qualitative results, statistical quantitative showed captured MJO-related conclusion, is expected predictions for whose evolution affected variations.