NLCD2006 Land Cover (2011 Edition) nlcd_2006_landcover_2011_edition_2014_03_31.zip

The most recent 2011 Edition of NLCD 2006 land cover layer for the conterminous United States for all pixels. National Land Cover Database 2006 (NLCD2006) is a 16-class land cover classification scheme that has been applied consistently across the conterminous United States at a spatial resolution of 30 meters. NLCD2006 is based primarily on the unsupervised classification of Landsat Enhanced Thematic Mapper+ (ETM+) circa 2006 satellite data. NLCD2006 also quantifies land cover change between the years 2001 to 2006. The NLCD2006 land cover change product was generated by comparing spectral characteristics of Landsat imagery between 2001 and 2006, on an individual path/row basis, using protocols to identify and label change based on the trajectory from NLCD2001 products. It represents the first time this type of 30 meter resolution land cover change product has been produced for the conterminous United States. A formal accuracy assessment of the NLCD2006 land cover change product is pla

本数据集为2011年最新版的NLCD 2006连续美国大陆土地覆盖层，涵盖所有像素。国家土地覆盖数据库2006年（NLCD2006）是一种16类的土地覆盖分类方案，该方案在连续美国大陆范围内以30米的空间分辨率得到持续应用。NLCD2006主要基于2006年左右Landsat增强型专题制图仪+（ETM+）卫星数据的无监督分类。NLCD2006还量化了2001年至2006年间的土地覆盖变化。NLCD2006土地覆盖变化产品是通过比较2001年至2006年间Landsat影像的光谱特征，基于NLCD2001产品轨迹的识别和标记变化协议，逐条路径/行生成的。这标志着首次为连续美国大陆生产此类30米分辨率土地覆盖变化产品。对NLCD2006土地覆盖变化产品进行了正式的准确性评估，计划...