Validation of the Historical Reconstruction of the MJO Index

Sea level from tide gauges in the Western Pacific, Gulf of Carpentaria, and along the West coast of the Americas were conditionally averaged (composited) based on MJO phase using the Wheeler and Hendon (2004) index (IWH) and the historical reconstruction (IHR) over the shared period (1979-2008) and the pre-1979 period over which data is available (1905-1943 and 1944-1978). All MJO events of amplitude less than one were ignored.

Figure 1: Tide gauges from the Western Pacific and the Gulf of Carpentaria

Figure 2: Tide gauges along the West coast of the Americas