Wednesday, December 30, 2015

Wandering pole

I plotted up the temperature analysis to show how Boston--and pretty much the entire northeastern US--enjoyed a warmer Christmas in 2015 than Los Angeles.  Bad Dad pointed out that this is a junk graphic because everyone already knows this.
But, plot it up in polar stereographic, and it gets more interesting.

In fact, when I plotted up today's near surface temperature analysis in polar stereographic, you can see that the north pole almost got above freezing!  Moreover, it exhibits a wavenumber of 2.
AER's Arctic Oscillation Analysis and Forecasts page gives a technical explanation of this event.

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