MJO phase (RMM)

Wheeler–Hendon octant 1–8: 2–3 Indian Ocean, 4–5 Maritime Continent, 6–7 western Pacific, 8–1 Western Hemisphere/Africa. — 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