Madden-Julian Oscillation

Madden-Julian Oscillation Analysis from NCAR

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This module computes many of the diagnostics described by the WGNE MJO Task Force and developed by Dennis Shea for observational data. Using daily precipitation, outgoing longwave radiation, zonal wind at 850 and 200 hPa and meridional wind at 200 hPa, the module computes anomalies, bandpass-filters for the 20-100 day period, calculates the MJO Index as defined as the running variance over the bandpass filtered data, performs an EOF analysis, and calculates lag cross-correlations, wave-number frequency spectra and composite life cycles of MJO events.
QBOi.EXP1.AMIP.001
NCEP Reanalysis

EOF analysis

EOF analysis 30S to 30N (lat-lon map, time series)
pr summer QBOi.EXP1.AMIP.001 pr summer QBOi.EXP1.AMIP.001
pr summer TRMM pr summer TRMM
pr winter QBOi.EXP1.AMIP.001 pr winter QBOi.EXP1.AMIP.001
pr winter TRMM pr winter TRMM
rlut summer QBOi.EXP1.AMIP.001 rlut summer QBOi.EXP1.AMIP.001
rlut summer ERA rlut summer ERA
rlut winter QBOi.EXP1.AMIP.001 rlut winter QBOi.EXP1.AMIP.001
rlut winter ERA rlut winter ERA
u850 summer QBOi.EXP1.AMIP.001 u850 summer QBOi.EXP1.AMIP.001
u850 summer ERA u850 summer ERA
u850 winter QBOi.EXP1.AMIP.001 u850 winter QBOi.EXP1.AMIP.001
u850 winter ERA u850 winter ERA
u200 summer QBOi.EXP1.AMIP.001 u200 summer QBOi.EXP1.AMIP.001
u200 summer ERA u200 summer ERA
u200 winter QBOi.EXP1.AMIP.001 u200 winter QBOi.EXP1.AMIP.001
u200 winter ERA u200 winter ERA
v200 summer QBOi.EXP1.AMIP.001 v200 summer QBOi.EXP1.AMIP.001
v200 summer ERA v200 summer ERA
v200 winter QBOi.EXP1.AMIP.001 v200 winter QBOi.EXP1.AMIP.001
v200 winter ERA v200 winter ERA

lag-cross-correlations

The climatological cross correlation plots
lag lat lon summer QBOi.EXP1.AMIP.001 lag lat lon summer ERA
lag lat lon winter QBOi.EXP1.AMIP.001 lag lat lon winter ERA
lag lat lon annual QBOi.EXP1.AMIP.001 lag lat lon annual ERA

wavenumber - frequency spectra

The wavenumber - frequency spectra plots (QBOi.EXP1.AMIP.001 vs obs)
pr summer QBOi.EXP1.AMIP.001 pr summer TRMM
pr winter QBOi.EXP1.AMIP.001 pr winter TRMM
rlut summer QBOi.EXP1.AMIP.001 rlut summer ERA
rlut winter QBOi.EXP1.AMIP.001 rlut winter ERA
u850 summer QBOi.EXP1.AMIP.001 u850 summer ERA
u850 winter QBOi.EXP1.AMIP.001 u850 winter ERA
v850 summer QBOi.EXP1.AMIP.001 v850 summer ERA
v850 winter QBOi.EXP1.AMIP.001 v850 winter ERA
u200 summer QBOi.EXP1.AMIP.001 u200 summer ERA
u200 winter QBOi.EXP1.AMIP.001 u200 winter ERA
v200 summer QBOi.EXP1.AMIP.001 v200 summer ERA
v200 winter QBOi.EXP1.AMIP.001 v200 winter ERA

composite life cycles

The composite life cycles (QBOi.EXP1.AMIP.001 vs obs)
summer QBOi.EXP1.AMIP.001 summer QBOi.EXP1.AMIP.001 summer ERA
winter QBOi.EXP1.AMIP.001 winter QBOi.EXP1.AMIP.001 winter ERA