MJO RMM2

Wheeler–Hendon RMM2 (in-house). Positive = convection over the western Pacific, negative = Indian Ocean. — Wheeler & Hendon 2004 (MWR 132, 1917); CLIVAR MJO WG forecast convention https://www.cpc.ncep.noaa.gov/products/precip/CWlink/MJO/CLIVAR/clivar_wh.shtml