AMWG Variability Diagnostics for Daily Data
Intraseasonal Variability
Daily 200 hPa velocity potential anomalies computed and then averaged
over 5S-5N, 20-70 day bandpass filter then applied. Hovmöller plots.
Bandpass filter response plot
20210719.PhaseII.F20TR-P3.NGD.ne30pg2.corroutput.compy. Anomalies are relative to the 1991-2010 mean.
Anomalies computed relative to the time period mean.
Madden-Julian Oscillation
Time series of daily 200 hPa zonal wind averaged over 10N-10S.
200 hPa zonal wind bandpass filtered for 20-100 day period.
MJO Index defined as the running variance of the bandpass filtered data.
Histograms
Histograms of daily precipitation rate for the Tropics and NH Extratropics.
EOF analysis
EOF analysis 30S to 30N (lat-lon map, time series)
lag-cross-correlations
The climatological cross correlation plots (20210719.PhaseII.F20TR-P3.NGD.ne30pg2.corroutput.compy vs obs)
wavenumber - frequency spectra
The wavenumber - frequency spectra plots (20210719.PhaseII.F20TR-P3.NGD.ne30pg2.corroutput.compy vs obs)
composite life cycles
The composite life cycles (20210719.PhaseII.F20TR-P3.NGD.ne30pg2.corroutput.compy vs obs)
