Figure 3
From: Exploring the long-term changes in the Madden Julian Oscillation using machine learning
(a) Running 11-year mean boreal winter MJO occurrence anomaly at phase 4, 5, and 6 regions and the PDO index. MJO occurrence anomaly at phase locations 4, 5, and 6 according to CNN-1D, OT12, WH04, MLR, SVR, JRA55 MJO index (blue, orange, black, red, green and cyan respectively). Black line represents the running 11-year mean PDO index. (b) probability distribution (PD in %) of boreal winter MJO amplitude at RMM phase locations 4, 5, and 6 (over the Maritime Continent and west Pacific) for warm phases (1921–1944 and 1977–2005) and cold phases of PDO (1945–1977 and 2006–2012).
