Description
An orthophotograph is an aerial photo that has undergone orthorectification. This is a procedure that will allow, by following steps, to distort a digital image to make it conform, at any point, to a cartographic projection system. The result will be a digital image that can be directly integrated into a GIS.
The Coastal Ortho v3® is a database of color orthophoto mosaics. This is an update of the ortho littorale v1® and v2® on the North Sea, English Channel and Atlantic coastline and a first acquisition on the coast of Guyana.
The production of the coastal orthotic v3 began in 2018. The work is financed by the Ministry in charge of the environment. Currently, only ortho-littorals produced on the coastline of Guyana are available on Geolittoral.
The specifications available on Geolittoral contain specifications to cover all coastal issues. This is how the flights will be carried out in high tide conditions at low tide, that the areas of marine crops have been lifted, that the shooting area goes up in the rias, abers and estuaries. This is a product that has the great advantage of having a real land-sea interface.
The user will take care to consult the conditions of use on the Geolittoral website.
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Tags
- ortho-littorale-orthophotographie-littoral