Tuesday, February 26, 2013

Four weeks of climate data: Antarctica Region #3


Region #3 of Antarctica is directly south of Australia and New Zealand, but a very long way away from either. As this map shows, Tierra Del Fuego in South America is the closest point to the southern continent, while Australia and New Zealand are farther away and southern Africa and Madagascar are further away still.


Yet again, incredibly sparse coverage of the region, one station on near the Ross Sea shelf and another close to the northern shore.


Summer high records showed a warming trend in the 20th Century, but that was canceled out in the 21st Century. This is a pattern we expect if there is no trend one way or another.

The Fall high temperature records look line a cooling trend based on one warm Fall in the 1950s, which only got data from one of the two weather stations.  This is one of those problems with so little coverage. Every other trend looks static.


The Winter high temperatures look to be cooling, but the median and low temperatures look to be warming.


The highs and lows show warming but the median looks fairly static in the Spring readings.

Once again, the null hypothesis must be no trend in either direction and this data doesn't convince us to deny that hypothesis.

Eastern Antarctica has not shown signs of warming over the past 60 years or so.

Later today, the first slice of Western Antarctica, with even less readings than the first three sections of the southern continent.


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