Data on urban classification and structure in metropolitan areas in the United States, 1990-2010
收藏资源简介:
These data layers in this collection represent urban classes and rural land 1990-2010 within Metropolitan Statistical Areas (MSAs) The data can be downloaded as a .7z archive. Once extracted, the data layers can be found in the Data subdirectory which contains a map document (CensusGHSL_MSA.mxd) to open the data and map layouts in an ArcMap project and two subfolders. The MSA_Boundaries subfolder contains the MSA boundaries of the year 2000. The Urban_Classes subfolder contains the produced urban classes based on block-level census data and GHSL for the years 1990, 2000 and 2010, and for different GHSL built-up thresholds (1%, 25% and 50%). In the Documentation subdirectory the user will find a data dictionary, and an illustrative image of the data collection (.png).



