"The Madden–Julian oscillation (MJO) is the largest element of the intraseasonal (30–90 days) variability in the tropical atmosphere. It is a large-scale coupling between atmospheric circulation and tropical deep convection.[1][2] Rather than being a standing pattern (like ENSO) it is a traveling pattern, propagating eastwards at approximately 4 to 8 m/s, through the atmosphere above the warm parts of the Indian and Pacific oceans. This overall circulation pattern manifests itself in various ways, most clearly as anomalous rainfall." (Wikipedia) The US-CLIVAR MJO working group has developed diagnostics for objectively evaluating the MJO. Two WWW sites demonstrate the diagnostics: http://www.ncl.ucar.edu/Applications/mjoclivar.shtml and http://climate.snu.ac.kr/mjo_diagnostics/index.htm. Operational centers monitor the MJO and indicies are available at: http://cawcr.gov.au/staff/mwheeler/maproom/RMM/ and http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_mjo_index/mjo_...
The US-CLIVAR MJO working group has developed diagnostics for objectively evaluating the MJO. Two WWW site demonstrate the diagnostics: http://www.ncl.ucar.edu/Applications/mjoclivar.shtml and http://climate.snu.ac.kr/mjo_diagnostics/index.htm
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National Center for Atmospheric Research Staff (Eds). Last modified 08 Oct 2013. "The Climate Data Guide: MJO: Madden-Julian Oscillation Diagnostics." Retrieved from https://climatedataguide.ucar.edu/climate-data/mjo-madden-julian-oscillation-diagnostics.
Funding: NSF | National Science Foundation
Based at: NCAR | National Center for Atmospheric Research
A Project of: Climate Analysis Section in Climate and Global Dynamics Laboratory
Created by: Climate Data Guide PIs and Staff