Friday, December 12, 2008
Remember how deep the snow used to be in the winter? Often way up over my head. Snow forts, giant icicles, snow angels.... Giant snow drifts reached up to our garage roof making us a big white snow slide. Of course we were all younger and smaller then ......
But recently I don't remember much snow. Only a few days here and there with good sledding or solid ice on the pond. My son had NO snow days last year.
This graph published in the Boston Globe yesterday shows winter temperatures for New England over the last 40 years. The authors conclude that temperatures are rising 0.8 degrees (0.42° to 0.46°C) per decade here. And the number of days with snow on the ground is decreasing 3.6 days per decade.
Hmmm. It makes one wonder what the next few years will bring....
But then again, the comments on this front page Boston Globe article are pretty extensive and scathing. Namely, how can a solid conclusion be made from 40 years of data? They do call it a trend - I wonder how statistically significant the increase is?
And numbers in Globe article seem mixed up. They corrected the 0.8 (an error with C to F conversion). But the paper reports regional average reduction in snow-covered days as −8.9 d/decade, and Globe says its 3.6 days....
Globe Article, erratum
Burakowski et al., J Geophysical Research Atmospheres, Oct 2008