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Landscan is a world population dataset at approximately 1 km resolution (30" X 30"). It represents an ambient population (average over 24 hours). The LandScan algorithm uses spatial data and imagery analysis technologies and a multi-variable dasymetric modeling approach to disaggregate census counts within an administrative boundary. Since no single population distribution model can account for the differences in spatial data availability, quality, scale, and accuracy as well as the differences in cultural settlement practices, LandScan population distribution models are tailored to match the data conditions and geographical nature of each individual country and region. Note: Due to methodology changes from year to year, direct comparison of individual pixels between years is not recommended. This web interface is best used in Firefox. To access population data, click "search" to select either a political unit or to draw a polygon on the map. A pop up window will provide population with gender and age breakdown. (remember to use Firefox). Contact the Map Library for access to the full 4gig dataset via ftp
Natural Earth vector and raster map data
Medium to small scale boundary files from the North American Cartographic Information Society (NACIS)
ESRI Data and Maps
downloadable data layers that generally come on DVD free with ArcGIS software. To use the ArccGIS online interface, you will need to create an online login and password for yourself.
Free downloadable GIS data. Click on "GIS Data Depot" then "Download GIS Data" then click on the first letter of the name of the nation you are interested in. You will need to create a free Geocommunity account.
HydroSHEDS Worldwide Hydrology data
HydroSHEDS provides hydrographic information in a consistent and comprehensive format for regional and global-scale applications. Now maintained by the World Wildlife Federation. Registration (free) required.
Global Active Archive of Large Flood Events
MapInfo format files of flood event data, 1985-2010
River Watch from the Dartmouth Flood Observatory
Estimates river discharge at over 2500 selected river measurement sites. Scroll right past the worldwide image, and click on one of the region links below.
Global Distribution of Poverty
Consumption-based poverty and inequality measures and related data for subnational administrative units for several countries in Africa, Asia, Europe and Latin America. Note: Uses old ArcInfo Grid format
This site offers excerpts and derived data from the OpenStreetMap dataset available for free download. Most of these files are updated every day – any change you upload to OpenStreetMap should be on our download server the next day.
Worldwide datasets from ESRI. These data are copyrighted and may only be used for non-profit, educational purposes only.
VMAP1: Vector data for (part of) the world
VMap1 is derived rom Joint Operation Graphics (JOG) maps at 1:250,000 scale
Socioeconomic Data and Applications Center (SEDAC)
"Focusing on human interactions in the environment, SEDAC has as its mission to develop and operate applications that support the integration of socioeconomic and earth science data and to serve as an "Information Gateway" between earth sciences and social sciences."
Earthquake Geospatial Data Dataverse
Archive of datasets from the Earthquake Data Portals for China Wenchuan, Haiti, Chile, and Japan Sendai Earthquakes.
Harvard's AfricaMap Project
AfricaMap is based on the Harvard University Geospatial Infrastructure (HUG) platform, and was developed by the Center for Geographic Analysis to make spatial data on Africa easier for researchers to discover and explore
Virtual Kenya is an online interactive platform designed to provide improved access to high quality spatial data and cutting-edge mapping technology to allow more Kenyans to use and interact with spatial data in their educational and professional pursuits
China Data Online
Provides data on China, including macroeconomic statistics, economic reports, city statistics, regional statistics, industrial statistics, yearbooks, etc.
Mesoamerica - Geospatial Data Catalog
SERVIR’s Geospatial Catalogs provide interfaces to discovery services you can use to access geospatial data and associated information products and services. Includes vector and raster data such as hurricane tracks, boundaries, natural features, and some LANDSAT images.
Canadian Census Shapefiles
Includes political boundaries and water features. Files are available from 2001 to the present.
Boundary data and roads