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The TIGER files do not contain the census demographic data, but merely the geospatial/map data. GIS can be used to merge census demographics or other data sources with the TIGER files to create maps and conduct analysis. TIGER data is available without cost because U.S. Government publications are required to be released into the public domain.
NHGIS provides free of charge, aggregate census data and GIS-compatible boundary files for the United States between 1790 and 2012. Atlas of Historical County Boundaries Project (AHCBP) The AHCBP documents all boundary changes in states and counties in United States territory, including non-county areas never before compiled or mapped ...
The United States Census Department extensively uses Web GIS to distribute its boundary data, such as TIGER files, and demographics to the public. [ 1 ] [ 16 ] The "2020 Census Demographic Data Map Viewer" runs on an ESRI Web Map Application, and provides demographic information, such as population, race, and housing information at the state ...
Using satellite images, researchers have created a new real-time mapping system for tiger habitats that could aid in conservation efforts. How NASA and Google Earth are helping save tigers Skip to ...
English: Every public road in the contiguous United States, based on the 2018 U.S. Census TIGER dataset, with no other underlying map features.The data can be retrieved from the U.S. Census Bureau website, and was rendered using QGIS on the Albers Equal-Area Projection.
Forest guards in tiger reserves are equipped with personal digital assistants and GPS devices to capture data relating to tiger sightings, deaths, wild life crime and ecological observations while patrolling. [3] The software system maps the patrol routes of forest guards, and the resulting data are then analyzed in a geographic information system.
Geoportals also form a key component of commercial cloud-based GIS platforms, providing a library of geographic data that users can employ with online GIS tools or desktop GIS software. Google Earth Engine is a cloud-based image processing platform that includes a portal to several petabytes of satellite imagery.
The World Wide Web is an information system that uses the internet to host, share, and distribute documents, images, and other data. [33] Web GIS involves using the World Wide Web to facilitate GIS tasks traditionally done on a desktop computer, as well as enabling the sharing of maps and spatial data. [7]