Decennial U.S. Census figures are based on actual counts of persons dwelling in U.S. residential structures. They include citizens, non-citizen legal residents, non-citizen long-term visitors and ille ...
NOAA has at least two polar-orbiting meteorological satellites in orbit at all times, with one satellite crossing the equator in the early morning and early evening and the other crossing the equator ...
Implicit crowdsourcing is less obvious because users do not necessarily know they are contributing, yet can still be very effective in completing certain tasks. Rather than users actively participatin ...
Jeff Howe and Mark Robinson, editors at Wired Magazine, coined the term "crowdsourcing" in 2005 after conversations about how businesses were using the Internet to outsource work to individuals. Howe ...
Steve Coast founded the project in 2004, initially focusing on mapping the United Kingdom. In the UK and elsewhere, government-run and tax-funded projects like the Ordnance Survey created massive data ...
OpenLayer supports GeoRSS, KML (Keyhole Markup Language), Geography Markup Language (GML), GeoJSON and map data from any source using OGC-standards as Web Map Service (WMS) or Web Feature Service (WFS ...
Global Ortho Program -In July 2010, Microsoft and DigitalGlobe, a leading global content provider of high-resolution earth imagery solutions, announced the collection of the first imagery from the com ...
Users can browse and search topographically-shaded street maps for many cities worldwide. Maps include certain points of interest built-in, such as metro stations, stadiums, hospitals, and other facil ...
Google Mars provides a visible imagery view, like Google Moon, as well as infrared imagery and shaded relief (elevation) of the planet Mars. Users can toggle between the elevation, visible, and infrar ...
Much of the world's available satellite imagery are not more than 3 years old and updated on a regular basis. Google Maps provides high-resolution aerial or satellite images for most urban areas of th ...
The WFS specification defines interfaces for describing data manipulation operations of geographic features. Data manipulation operations include the ability to:get or query features based on spatial ...
A predecessor organization, OGF, the Open GRASS Foundation, started in 1992.From 1994 to 2004 the organization also used the name Open GIS Consortium.The OGC website gives a detailed history of the OG ...
Currently there are roughly three different models for location-based apps on mobile devices. All share that they allow one's location to be tracked by others. Each functions in the same way at a high ...
Today the question about LBS (Location Based Services) is not, "what they are inside of," but rather, "what they are not an active part of," and the answer is, "very little". They are a part of virtua ...
