Change in Growing Degree Days in the Contiguous 48 States, 1948–2020
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This map shows trends in the total number of growing degree days per year at 305 weather stations . The color and size of the symbols represent percent change between...
本专题地图展示了305个气象站的年总生长度日（growing degree days）总量的年度变化趋势。各符号的颜色与尺寸分别代表了不同时段间的百分比变化……
