U.S. Population Grids (Summary File 3), 2000: Alabama, Louisiana, and Mississippi, Alpha Version

The U.S. Population Grids (Summary File 3), 2000: Alabama, Louisiana, and Mississippi, Alpha Version data set contains an ARC/INFO Workspace with grids of demographic data from the year 2000 census. The grids have a resolution of 30 arc-seconds (0.0083 decimal degrees), or approximately 1 square km. The gridded variables are based on census block geography from Census 2000 TIGER/Line Files and census variables (income, poverty, education, housing age). This data set is produced by the Columbia University Center for International Earth Science Information Network (CIESIN).

美国人口网格（概要文件3）2000年版，包含阿拉巴马州、路易斯安那州和密西西比州的数据集，系Alpha版本，内含由ARC/INFO工作区构成的栅格化人口统计数据，该数据源自2000年人口普查。这些栅格以30弧秒（相当于0.0083十进制度量）的分辨率制作，大约相当于1平方公里的面积。栅格化变量基于2000年TIGER/Line文件中的普查区块地理信息以及普查变量（收入、贫困、教育、住房年龄）。本数据集由哥伦比亚大学国际地球科学信息网络中心（CIESIN）制作。