Aerial orthophotography 2020 on Rennes Métropole
Description
This aerial orthophotography was carried out by the Institut Géographique National et Forestier (IGNF) on the basis of aerial shots taken in the summer of 2020. It was designed with very short production times. The orthorectification process (geometric correction of shots to adapt them to variations in the terrain) is essentially automatic. Its technical characteristics are constrained by this strong requirement.
\- Projection used for data acquisition: Lambert 93/IGN69
\- Initial data delivered in Lambert 93
\- Planimetric accuracy class of data: unknown
\- Native resolution: 20 cm
\- Recovery: unknown
\- Delivery in the form of 1 km x 1 km tiles
\- Syntax used for naming tiles: XXXX_YYYY, from the X-Y coordinates in RGF93-CC48
\- Shooting dates: 07/08/2020, 13/09/2020, 14/09/2020
This dataset is composed of 1974 slabs of 1 km x 1 km for a volume of about 67 GB in JPEG 2000 format (JP2).
The 20 cm slabs in JP2 format on the territory of Rennes Métropole are individually downloadable on the Open Data site of Rennes Métropole.
For performance issues, it is advisable to use, in descending order of priority (and depending on the software possibilities):
1\. cached services/WMTS or TMS tiles services of GeoWebCache
2\. the GeoWebCache WMS service
3\. GeoServer’s WMS service
Resources
| Name |
Format |
Description |
Link |
|
23 |
|
https://www.data.gouv.fr/api/1/datasets/r/6b56dbe3-703a-4610-90e7-e94cde766592 |
|
23 |
|
https://www.data.gouv.fr/api/1/datasets/r/2655f656-b875-4d28-a185-cca44604af6b |
|
57 |
|
https://www.data.gouv.fr/api/1/datasets/r/d4f80e10-2b75-4431-bd10-d57af8d5026e |
|
8 |
|
https://www.data.gouv.fr/api/1/datasets/r/05a7adc2-526f-4a4a-8f02-186c5fedc2f2 |
Tags
- photographie
- referentiels-geographiques
- photographie-aerienne