Data - Removing roads from the National Land Cover Database to create improved urban maps for the United States, 1992-2011
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To better map the urban class and understand how urban lands change over time, we removed rural roads and small patches of rural development from the NLCD developed...
为更精准地绘制城市土地类别分布图，并探究城市用地随时间的变化规律，我们从NLCD（National Land Cover Database，美国国家土地覆盖数据库）的已开发用地数据中移除了乡村道路与小片乡村开发地块……
