Summary

The FMS AM1 GCM shows considerable 20-90 day activity (TIO) propagating generally eastwardLongitude-Time plots indicate that TIO activity in the AM1 are significantly stronger than NCEP reanalyses and the AMIP2 GCMTime mean space-time power spectra sh

Overall it does appear that the FMS AM1 has an MJO but it is stronger and slower than observed

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