The links and descriptions are below as well as links to some other MJO timeseries created at other institutions.
A description of the timeseries format is available.
Daily Time series from 1979 to 2013
The OLR MJO Index
|Projection of 20-96 day filtered OLR, including all eastward and westward wave numbers onto the daily spatial EOF patterns of 30-96 day eastward filtered OLR.||OMI values|
The Real-time OLR MJO Index
|Projection of 20-96 day filtered OLR, including all eastward and westward wave numbers onto the daily spatial EOF patterns of 30-96 day eastward filtered OLR.||ROMI values|
The Filtered OLR MJO index.
|Univariate EOF of normalized 20-96 day filtered OLR averaged from 15S-15N.||FMO values|
The Real-time Filtered OLR MJO index.
|Real time OMI derived from OLR anomaly data with the previous 40 day mean removed and a 9 day running mean applied, projected onto the spatial EOF patterns of FMO.||RFMO values|
Composite streamfunction and OLR patterns for RMM and OMI based on the events that exceed 1 standard deviation for each phase of the PC combination.These are based on data from 1979 through 2012, and the number of events in each composite is given as "N= " at the bottom of each plot. Blue shading denotes negative OLR anomalies (regions of convection) and red positive (suppressed), with two levels of shading at +- 10 and +- 6 W/m**2. Streamfunction contour interval is 5 X 10**5 m**2/s at 200 hPa, and 2 X 10**5 m**2/s at 850 hPa. To facilitate comparison with RMM, these composites are constructed by reversing the sign of OMI PC1 and the OMI PC ordering, so that OMI(PC2) is analogous to RMM(PC1) and -OMI(PC1) is analogous to RMM(PC2), as described in Kiladis et al. 2013.
- 200mb OMI DJF
- 200mb OMI JJA
- 200mb RMM DJF
- 200mb RMM JJA
- 850mb OMI DJF
- 850mb OMI JJA
- 850mb RMM DJF
- 850mb RMM JJA
Kiladis G.N., J. Dias, K.H. Straub, M.C Wheeler, S.N. Tulich, K. Kikuchi, K.M. Weickmann, M.J. Ventrice. A comparison of OLR and circulation based indices for tracking the MJO. (in press, Monthly Weather Review, 2014) .
- An animation of the daily EOF's (realtime player format).
The ASCII spatial EOF patterns for each day are available via ftp...
- The ASCII EOF values are available via ftp for EOF1 and EOF2 . They can be read using the code read.eof.f.
Other MJO timeseries
- An All-season Real-time Multivariate MJO Index from the The Centre for Australian Weather and Climate Research.
- Bimodal ISO Index for historical data analysis and real time monitoring from the International Pacific Research Center.