The Topographic Maps and geographical information system GIS data provided in The National Map are pre-generated into downloadable products often available in multiple formats. Lidar point cloud data is also available over many areas of the US. See our Dataset List for a brief explanation of these products. Direct access is provided via browsable links through our Amazon's Cloud Browse site. Training Video Lesson 4d. Please select your choice of distro below:. The QGIS experience does not stop on the desktop.
Various touch optimized apps allow you to take QGIS into the field. For testing and learning purposes, a sample dataset is available , which contains collections of data from different sources and in different formats. More older releases are available here and for OS X here. Plugins for QGIS are also available here.
QGIS is open source software available under the terms of the GNU General Public License meaning that its source code can be downloaded through tarballs or the git repository. Skip to content. In other words: these 10 free GIS data sets are the best of the best.
We can ensure that all are from authoritative sources. Subscribe to our newsletter:. Thank you, very helpful. Any insight on the procurement process for those geospatial databases would be much appreciated.
Leave a Reply Cancel reply Your email address will not be published. Toggle Menu Close. Search for: Search. Download formats are in spreadsheet, KML, shapefile. Cultural, physical and raster basemap data. Satellite imagery is worldwide and not just within the United States User interface is state-of-the-art with easy-to-use filters.
Highly detailed free GIS data with different levels of accuracy and completeness. High spatial resolution cultural vector data such as buildings, roads, waterways. Flagship data is its gridded population of the world. Global socioeconomic data comes from 15 different themes. Socioeconomic data includes a range of topics such as agriculture, climate and health. Spatial and non-spatial data on a variety of themes. Display maps, graphs and tables on-the-fly.
Themes include population, forests, emissions, disasters and GDP for spatial and non-spatial data. Constant updates ensuring timely climate information of our globe.
Accessible in a variety of GIS formats. All raster grids are atmosphere, energy, land, life and ocean GIS data. Sentinel 2 data has 11 spectral bands including red, green, blue, near-infrared. Centers of population NHGIS provides point files representing the and centers of population for states, counties, census tracts, and block groups.
Census Bureau's Centers of Population for and Each point represents the mean center of population within the corresponding area, computed as an average of census block locations, weighted by block population, using a simple spherical model of the Earth surface.
As described in the Census Bureau's Centers of Population Computation documentation: "The center of population is the point at which an imaginary, weightless, rigid, and flat no elevation effects surface representation of [a geographic area] would balance if weights of identical size were placed on it so that each weight represented the location [of] one person.
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