Friday, February 15, 2013

Six weeks of climate data: Northern Polar Region #9, 120° to 90° West


These last four regions in the Arctic have much more land mass than most regions and some of that mass is north of 80° N. This means a change to get readings much closer to the Pole.


We get a lot of the 3,441 readings here from the area represented by the back row of dots, but there are also some readings from very close to the Pole. There are six curved columns of dots, a gap, then two more columns. Including the gap, that's nine grid lines out of a maximum of ten. The only way we could get closer is if there was a station on the North Pole itself.


The Winter shows a definite surge of very warm average years recently, including a spike in 2010, the last year measured. The median does not move up because there were also several cold years.

Yet again, this most recent Oceanic Niña gives us a very warm new record, but both the median and coldest trendlines take a dip compared to 1988-1999.


Summer has the upwards staircase pattern for both the record temperature and the median, but there was another cold Summer this decade colder than anything in the 1990s. Overall, this is a convincing warming pattern, but the jumps from interval to interval are getting less steep, so it appears to be increasing more slowly.


Fall is the season that shows the most convincing warming trend, especially is the big jump in the median between this century and the last.

There were a total of 48 readings, 12 in each season. Intervals can finish 1st, 2nd, 3rd or 4th, and ties are possible.

Most warmest readings: 1999-2010 with 8. Most 2nd warmest readings: 1988-1999 with 7.
Most 3nd warmest readings: 1975-1988 with 8.
Most coldest readings: 1955-1975 10.

Is this region warming from interval to interval? The best arguments say yes.

Is the rate of warming increasing? The Fall data says yes, the other three seasons disagree, so I would argue no.

Later today, the slice of the Arctic with the northernmost part of Canada and the western tip of Greenland.

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