National Land Cover Database (NLCD) Impervious Products

The U.S. Geological Survey (USGS), in association with the Multi-Resolution Land Characteristics (MRLC) Consortium, produces the National Land Cover Database (NLCD)...美国地质调查局（U.S. Geological Survey, USGS）联合多分辨率土地特征（Multi-Resolution Land Characteristics, MRLC）联盟，开发了全国土地覆盖数据库（National Land Cover Database, NLCD）……