This category contains introductory text about GIS data such as types of error in GIS datasets, types of GIS data (raster and vector), and metadata. Find resources to finding GIS data and where to download data.
Centers of Population from 1790 – 2000 based on calculations by the US Census.
Jason-1 is a satellite to be jointly operated by NASA and CNES (Centre National d’Etudes Spatiales), the French space agency. Scheduled for launch no earlier than September 15th of this year, Jason-1 will work in tandem with TOPEX/Poseidon, a U.S.-French satellite in operation since 1992. TOPEX/Poseidon marked its ninth anniversary in orbit on August 10th, 2001.
If you are looking for comprehensive and free data for a project, California hosts a wide range of federal, state and local agencies that readily make their data available at no cost. Many of these datasets can be easily downloaded from the Internet. Most can be found in common GIS and CAD formats such as ArcView Shapefiles, ArcInfo export (.e00) or Microstation (.dgn) files.
Esri launched the Geography Network as “a collaborative and multi-participant system for publishing, sharing and using digital geographic information on the Internet.”
Number of Fortune 1000 companies categorized by state for the year 2000. The list of total count of Fortune 1000 companies by state is ranked … Read more
About Algeria Maps and geographical information from the Geography Site at About. GIS Data Depot – Algeria Free data for Algeria for downloading from the … Read more
Space Shuttle Endeavour lifted off on February 11. One of its missions is an ambitious mapping of the earth. Approximately 80 percent of the Earth will be mapped, an area that covers 95 percent of the Earth’s population.