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Global Sea Surface Temperature Anomalies
The sea surface temperature anomaly (SSTA) is the difference between the observed SST and the climatological SST. These anomalies are calculated on a weekly basis.
Positive SSTAs are usually correlated with increased regions of convection (cloudiness and rainfall) while negative SSTAs are usually correlated to reduced convection.
SSTAs can be used as an indicator of the phase of global climate fluctuations, such as the El Nino/Southern Oscillation (ENSO).
The data displayed in this map is the weekly average, centred on the date shown.
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A digger's letter from snowbound Gallipoli
08:00 AEST In weather terms, the Anzacs at Gallipoli copped it all – from parched, scorching summers to freezing winters as weather systems with origins in the Russian Arctic surged southwards over Turkey.
- 15:39 AEST Summery Sydney, wintry Melbourne
- 13:00 AEST Rainfall to soak some parched areas of WA
- 10:33 AEST Tassie snow, Melbourne temps go low
- 16:40 AEST Australia's tropical cyclone season coming to an end
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