Northern Hemisphere Seasonal and Intermittent Frozen Ground Areas 1901-2001, Version 1

This data set contains monthly values of the total exposed land area of seasonally frozen ground and annual values for intermittently frozen ground in the Northern...本数据集包含北部区域（原文表述未完整）季节冻土（seasonally frozen ground）的总裸露陆域面积逐月数值，以及间歇冻土（intermittently frozen ground）的逐年数值。