From 1999, rainfall at Manilla NSW matched ENSO only up to 2011, before the IPO became positive. This graphical log compares the rainfall at Manilla NSW with the El Niño-Southern Oscillation (ENSO) and the Inter-decadal Pacific Oscillation (IPO) through the 21st century to date. Values shown are anomalies, smoothed. (See Notes below on “Data”, “Smoothing”, […]
The IPO is a leading mode of sea surface temperatures (SSTs) seen mostly in the Pacific Ocean.
This interpretation of IPO by LONG PADDOCK
http://www.longpaddock.qld.gov.au/products/australiasvariableclimate/index.html
SOME OTHER TIME SERIES GRAPHS
“The interdecadal Pacific oscillation (IPO or ID) displays similar sea-surface temperature (SST) and sea-level pressure (SLP) patterns, with a cycle of 15–30 years, but affects both the north and south Pacific. In the tropical Pacific, maximum SST anomalies are found away from the equator. This is quite different from the quasi-decadal oscillation (QDO) with a period of 8-to-12 years and maximum SST anomalies straddling the equator, thus resembling the ENSO.”
http://en.wikipedia.org/wiki/Pacific_decadal_oscillation
CRIKEY !#&@ ...... IT'S THE WEATHER CYCLES 