IMLCZO -- GIS/Map Data -- Spatial and GIS Data -- Upper Sangamon River Basin, Illinois, and Clear Creek, Iowa -- (2017-2017)

Land cover in the USand the CCW - The land cover data is collected annually from USDA for the whole US. The data can be downloaded here https://nassgeodata.gmu.edu/CropScape/. Data resolution is 30 *30 m. The available data period for both USRB and CCW is from 2008 till 2015

美国及CCW区域土地覆盖数据集——该土地覆盖数据由美国农业部（United States Department of Agriculture, USDA）每年采集，覆盖全美全域。数据可通过链接https://nassgeodata.gmu.edu/CropScape/ 下载获取。数据分辨率为30米×30米。USRB与CCW的可用数据时段均为2008年至2015年。