Google Earth - Wikipedia. Google Earth. Original author(s)Google Inc. Developer(s)Google Inc. Initial release. June 1. Stable release. Windows, mac. OS, Linux. 7. 3. 0. July 1. 2, 2. 01.
Android. 9. 0. 3. April 1. 9, 2. 01. OS9. 0. 7. 8 (August 1, 2. Preview release. Windows, mac. OS, Linux. 7. 1. 2. October 3. 1, 2. 01. Written in. C++Operating system. Windows, mac. OS, Linux, Android, i. OSSize. Windows: 1. MBmac. OS: 3. 5 MBLinux: 2. When the original Earth program was re-launched in 2005 under the Google brand, there was a lot of interest in it. Being able to view satellite imagery of pretty much. MBAndroid: 8. 4. 6 MBi. OS: 7. 7. 5 MBType. Virtual globe. License. Freeware. Websiteearth. Google Earth is a computer program that renders a 3. D representation of Earth based on satellite imagery. The program maps the Earth by the superimposition of images obtained from satellite imagery, aerial photography and GIS data onto a 3. D globe, allowing users to see cities and houses at various angles. Google Earth allows users to search for addresses for some countries, and enter coordinates. The user can navigate Google Earth using a keyboard or mouse. The program can also be downloaded on a smartphone or tablet and be navigated by using a touch screen or stylus. Users may use the program to add their own data, making them available through various sources, such as forums or blogs. Google Earth is able to show various kinds of images overlaid on the surface of the earth and is also a Web Map Service client. Google Earth supports managing three- dimensional geospatial data through Keyhole Markup Language. Google Earth has been viewed by some as a threat to privacy and national security, leading to the program being banned in multiple countries. Some countries have requested that certain areas be obscured in Google's satellite images, usually areas containing military facilities. History[edit]Google Earth was originally developed by Keyhole, Inc., a Mountain View- based company founded in 2. Keyhole, after being spun off from Intrinsic Graphics, received funding from the Central Intelligence Agency's venture capital firm, In- Q- Tel[5] and the National Geospatial- Intelligence Agency,[6] in addition to smaller capital from Nvidia and Sony.[7] Keyhole developed the program under the name Keyhole Earth. Viewer, and sold the product for uses in fields such as real estate, urban planning, defense, and intelligence. Google acquired the company in 2. Imagery[edit]Google Earth's imagery is displayed on a digital globe, which displays the planet's surface using a single composited image from a far distance. After zooming in far enough, the imagery transitions into different imagery of the same area with finer detail, which varies in date and time from one area to the next. The imagery is retrieved from satellites or aircraft.[1. Before the launch of NASA and the USGS's. Landsat 8 satellite, Google relied partially on imagery from Landsat 7, which suffered from a hardware malfunction that left diagonal gaps in images.[1. In 2. 01. 3, Google used datamining to remedy the issue, providing what was described as a successor to the Blue Marble image of Earth, with a single large image of the entire planet. This was achieved by combining multiple sets of imagery taken from Landsat 7 to eliminate clouds and diagonal gaps, creating a single "mosaic" image.[1. Google now uses Landsat 8 to provide imagery in a higher quality and with greater frequency.[1. Imagery resolution ranges from 1. Most areas in Google Earth are only shown in 2. D aerial imagery, but 3. D images of some areas are available, mostly in major cities. For the remainder of the earth, Google Earth uses digital elevation model (DEM) data collected by NASA's Shuttle Radar Topography Mission (SRTM),[1. D aerial imagery on top, meaning the program renders all areas of the earth in some degree of three- dimensional modeling. Introduced in version 5. Google introduced Historical Imagery, allowing users to view earlier imagery. Clicking the clock icon in the toolbar opens a time slider, which marks the time of available imagery from the past. This feature allows for observation of an area's changes over time.[1. D Imagery[edit]. Countries with 3. D coverage in Google Earth as of May 2. Google Earth shows 3. Dbuilding models in some cities, including photorealistic 3. D imagery. The first 3. D buildings in Google Earth were created using 3. D modeling applications such as Sketch. Up and, beginning in 2. Building Maker,[1. Google Earth via the 3. D Warehouse. However, In June 2. Google announced that it would be replacing user made 3. D buildings with an auto- generated 3. D mesh.[1. 8] This would be phased in, starting with select larger cities, with the notable exception of cities such as London and Toronto which required more time to process detailed imagery of their vast number of buildings. The reason given is to have greater uniformity in 3. D buildings, and to compete with other platforms already using the technology such as Nokia Here and Apple Maps. The coverage began that year in 2. By March 2. 01. 5, 3. D imagery covering more than 1. U. S. state and encompassing every continent except Antarctica. In 2. 00. 9, in a collaboration between Google and the Museo del Prado in Madrid, the museum selected 1. D version of the Prado in Google Earth and Google Maps.[2. Street View[edit]On April 1. Google fully integrated its Street View product into Google Earth. Street View displays 3. The photos were taken by cameras mounted on automobiles, can be viewed at different scales and from many angles, and are navigable by arrow icons imposed on them. When Street View was added to Google Maps, on May 2. It now shows more than 4. U. S. cities and includes the suburbs of many. Updates have added Street View for most major cities around the globe. Water and ocean[edit]Introduced in Google Earth 5. Google Ocean feature allows users to zoom below the surface of the ocean and view the 3. D bathymetry. Supporting over 2. On April 1. 4, 2. Google added underwater terrain data for the Great Lakes.[2. In June 2. 01. 1, higher resolution of some deep ocean floor areas increased in focus from 1- kilometer grids to 1. Google Earth.[2. 6] The high- resolution features were developed by oceanographers at Columbia University's Lamont- Doherty Earth Observatory from scientific data collected on research cruises. The sharper focus is available for about 5 percent of the oceans (an area larger than North America). Underwater scenery can be seen of the Hudson Canyon off New York City, the Wini Seamount near Hawaii, and the sharp- edged 1. Mendocino Ridge off the U. S Pacific Coast. There is a Google 2. Seafloor Tour for those interested in viewing ocean deep terrain.[2. Copyright[edit]Every image created from Google Earth using satellite data provided by Google Earth is a copyrighted map. Any derivative from Google Earth is made from copyrighted data which, under United States Copyright Law, may not be used except under the licenses Google provides. Google allows non- commercial personal use of the images (e. By contrast, images created with NASA's globe software World Wind use The Blue Marble, Landsat or USGS layer, each of which is a terrain layer in the public domain. Works created by an agency of the United States government are public domain at the moment of creation. This means that those images can be freely modified, redistributed and used for commercial purposes. Outer space[edit]. A picture of Mars' landscape. Google Earth in Sky Viewing Mode. Google Earth can be used as a program to view outer space, including the surfaces of various objects in the solar system. Google has programs and features, including within Google Earth, allowing exploration of Mars, the moon, and the view of the sky from Earth. Google Sky[edit]Google Sky is a feature that was introduced in Google Earth 4. August 2. 2, 2. 00. March 1. 3, 2. 00. Androidsmartphones, with augmented reality features. Google Sky allows users to view stars and other celestial bodies.[3. It was produced by Google through a partnership with the Space Telescope Science Institute (STSc. I) in Baltimore, the science operations center for the Hubble Space Telescope. Dr. Alberto Conti and his co- developer Dr. Carol Christian of STSc. I plan to add the public images from 2. Hubble's Advanced Camera for Surveys. Newly released Hubble pictures will be added to the Google Sky program as soon as they are issued. New features such as multi- wavelength data, positions of major satellites and their orbits as well as educational resources will be provided to the Google Earth community and also through Christian and Conti's website for Sky.[3.
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