December, 2009 was second highest. How odd that the Ministry Of Truth failed to mention this.
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Because more snow is more proof of global warming and man-made climate change.
But they said today that global warming was making the snow disappear. Some days global warming causes snow, and other days it causes lack of snow.
Just eyeballing it I’d say the trend is clearly positive and I’m certain that there is good correlation with increasing CO2. Anthropogenic snow perhaps?
Trend is positive at 0.031 million km^2/yr. Didn’t run a significance test, but I doubt the positive trend is significant at any “normal” confidence interval.
Presumably the trend is also positive with CO2 concentration because the correlation between CO2 concentration and year is very high.
Note that Tamino claims that modern global warming started in October 1974. Running the regression from 1974-present yields a much more positive slope of 0.083 million km^2/yr. That might actually be enough to be significant. I’ll need to run it through a different software package to get a better idea.
-Scott
Ya but
someone from the government just told us global warming is happening.
If I did the calculation right, this year was 1.32 standard deviations above the average. So not huge, but definitely larger than normal.
-Scott
Probably not a record low.
The 2009/2010 snow cover appears to be a record for two consecutive years.
It is. December 2009/2010 averaged 45.78 million km^2. Next highest was 44.955 km^2 (2001/2002). Note that the 45.78 million km^2 is 1.77 standard deviations above the average for two-year windows.
December 2008-2010 was also the highest 3-year window, at 45 million km^2. Next highest was 1970-1972 at 44.77 million km^2. The 45 million km^2 was 1.51 standard deviations above the average for 3-year windows.
I didn’t run a 4-year window, but eyeballing it, I’d guess it’s only competition is from the early 70’s.
-Scott