Understanding Climate Risk

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BoM Annual Climate Statement 2013 – SWWA SST

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As a result of the statement I made regarding the BoM Annual Climate Statement 2013, I was asked to do a radio interview on ABC drivetime radio in WA, so had a close look at the WA numbers to provide some local background. Average temperature was 0.98°C warmer than the 1961-90 average, the next highest being +0.93°C in 1998. Maximum temperature was also the warmest at +1.11°C compared to +1.00°C in 1994. Minimum temperature was not quite the warmest on record.

But the big shock I got was when I looked at sea surface temperatures (SSTs) for south-west WA. Have a look at this graph (note that 2013 isn’t up there yet due to a delay in processing):

Sea Surface Temperature anomalies south-west WA 1900-2012
Sea Surface Temperature anomalies south-west WA 1900-2012 (Source: BoM)

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