For some locations, like most of the western portion of the United States, the terrain information is provided at considerably higher resolutions. It additionally offers tools for making new information and a growing set of layers of data, like volcanoes and parcel of land, that reside on Google’s servers, and can be displayed within the view. Google Earth provides search capabilities and also the ability to pan, zoom, rotate, and tilt the view of the planet. To take a virtual tour of earth using Google Earth, the user needs to download and install the application on their computer. Google Earth’s alternative examples are NASA’s World Wind, ESRI’s ArcGIS explorer etc. It maps the Earth surface by superimposing Satellite images and other GIS Data onto a 3D Globe, which allows users to visualize the landscape from various angles. Google Earth is a Geo Browser that represents the Earth in 3D, based on the satellite and aerial imagery.
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