Regional Snowfall Index (RSI)
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The Regional Snowfall Index (RSI) is an index of significant snowstorms that impact the eastern two thirds of the U.S. The RSI ranks snowstorm impacts on a scale from...
区域降雪指数(Regional Snowfall Index,RSI)是用于评估影响美国东部三分之二区域的强降雪灾害的指标。该指数通过一套分级体系对降雪灾害的影响程度进行排序,其分级范围始于……



