الأربعاء، 29 ديسمبر 2010

The frequency of heavy snowfall

The annual average number of snowstorms with a 6 inch (15.2 cm) or greater accumulation, from the years 1901 - 2001. A value of 0.1 means an average of one 6+ inch snowstorm every ten years. Image credit: Changnon, S.A., D. Changnon, and T.R. Karl, 2006, Temporal and Spatial Characteristics of Snowstorms in the Contiguous United States, J. Applied Meteorology and Climatology, 45, 8, pp. 1141-1155, DOI: 10.1175/JAM2395.1.
It's interesting to see how many of the big snowfalls are mediated by lake effect and of course by altitude.

Via Wunderblog and Paul Douglas On Weather.

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