In this context, to date, there are few tools that facilitate this task, among them the most used are ArcGIS, Google® Maps and Google® Earth, however, for this purpose, these tools are available online and works entirely on its environment. The 3D modeling of territories or land is very important since many applications requires of this element and getting a three-dimensional digital model of the surface of some land, which is could be reliable and accurate, and that allows to be viewed interactively certainly help many users. In addition, could also is used for the management and planning of the territory.

Sea surface appear darker in this imagery.The reconstruction of three-dimensional (3D) models of terrain is important in many applications mainly for photorealistic visualizations of virtual natural environments, ranging from the representation of a landscape, to doing analysis and monitoring of coverage, or land use.

Thick (low / medium) clouds like cumulus, stratus, stratocumulus appear comparatively brighter than the thin (Higher) clouds like cirrus. Different types of clouds reflect in different amounts based on their physical properties like amount and size of raindrops / ice crystals and its density. Visible imagery is very useful for distinguishing clouds, land, and sea/ocean. The amount of reflection depends on the type of reflective surface. The incoming solar radiation in this channel is reflected by Clouds and Ground. Hence this channel is known as the Visible channel. The channel (0.65µm) lies in the visible region (0.4µm - 0.7µm) of the electromagnetic spectrum which can be seen with naked eye.

3d satellite images