Ortho-littoral v3 assembly plan in RGB
Description
Since 2018, a new air flight campaign on a part of the French coast is engaged in order to establish a coverage of orthophotos on the entire Atlantic and Channel - North Sea coast in metropolitan France as well as on the entire linear of that of Guyana. The production of this orthophotography is carried out at the rhythm of the flight campaigns. These may be carried out only under very specific conditions: at low tide during high tide with a water height of less than 1.50 m under anticyclonic conditions (> 1013hPa) established for at least 48 hours.
This orthophotographic cover is cut into 20*20km slabs and these are made available for free download on the Geolittoral site in the JPEG2000 format in RGB and Infrared color as they are produced. The download is done by batch of slabs of about 600MB each. The associated projection system is the RGF93 / Lambert93 (for slabs produced in mainland France) and the RGFG 1995 / UTM Zone 22N (for slabs produced in French Guiana).
This layer determines the assembly plan of the 20*20km slabs made in RGB. It currently concerns the coastline of French Guiana. It will be updated as the ortho-littoral v3 slabs are produced and distributed.
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Tags
- vol
- littoral
- orthophotographie
- ortho-littorale