pattern of tropical sea surface temperature (SST) anomalies during August
2006 featured warmer than average temperature across the central and eastern
Pacific (Fig. T18).
Accordingly, the SST anomalies in the Niņo 4, Niņo 3.4 and
Niņo 1+2 regions remained
positive (latest values of 0.8, 0.5 and 0.8, respectively)(Table
T2). Meanwhile, the
Darwin SOI is
negative (latest value: -1.6), primarily in response to higher than average
pressure over Darwin (Table T1,
Figs. T1, T19).
oceanic thermocline, measured by the depth of the 20ēC isotherm along the
equator, featured above average depth across the equatorial Pacific during
August (Figs. T15,
with these conditions, equatorial oceanic temperatures at thermocline depth
were 1-2ēC above average throughout most of the Pacific (Fig.
August, low-level westerly (easterly) anomalies (more than 3.0 m s-1)
were observed over the western equatorial Pacific (eastern
Suppressed convection (below-average rainfall amounts) was observed
enhanced convection (above-average rainfall amounts) was seen over the
western equatorial Pacific and southern Pakistan/western
severe flooding occurred during August (Figs.