Data — Orthophotograph CIGAL Digital Surface Model (BD ORTHO HR IGN MNS 2015) — Alsace and Kehl

MNS is a product derived from the digital mosaic of corrected color orthophotography in Lambert 93 projection. It is produced by the 'IGN. It results from an analog aerial shooting dating from summer 2015 orthorectified in Lambert 93 projection and then assembled. It covers all the departments of Haut-Rhin, Lower Rhine and Kehl. The native resolution of the image (pixel size) is 20 cm. This project received funding from the Alsace Region, the Haut-Rhin Department, the Lower Rhine Department, Europe (FEDER) and the French State (FNADT). Data are available under open license (Etalab). A consultation flow will soon be set up from the CIGAL geoplatform. __Origine__ This product corresponds to the specifications as described in the content description of March 2014 — BD ORTHO® HR and the delivery description of June 2014 — BD ORTHO® HR, subject to the adaptations and technical details of the Annex to the grant agreement of 10 September 2015 (Actions 1 and 2 below). Action 1: aerial shooting Geographical Right of Way: the whole territory of the Alsace region and the City of Kehl with a buffer zone of 500 meters on French territory and 1 kilometre outside. Acquisition of digital color images with a native resolution of 20 cm. Maximum cant on buildings less than 25 %. Solar angle greater than or equal to 40° for the so-called agglomeration areas and 30° on the other areas. Aerial shooting between 15 May and 15 September 2015, if weather conditions permit. Action 4: digital Surface Model (MNS) The digital surface model (MNS) is calculated with the Micmac software, the description of which is available at http://logiciels.ign.fr/?-Micmac,3 Automatic mapping is performed at the average resolution of the images, i.e. 20 cm. The final product is a regular 20 cm grid, providing an altitude expressed at IGN 69 altitude in each node of the grid. The digital surface model will be delivered in 1 kilometre side slabs according to the round kilometers of the projection Slab format: TIFF in 32 bits floating Georeferencing: .tab,.tfw L'IGN carried out additional quality control measurements of the Z through manual statements on 67 and 68 (see enclosure 20161118_qualite_MNS.zip) __ Partner Organisations__ Cigal, National Institute of Geographical and Forest Information — IGN __Links annexes__ * [content description](http://professionnels.ign.fr/sites/default/files/DC_BDORTHO_2_ORTHOHR.pdf) * [delivery description](http://professionnels.ign.fr/sites/default/files/DL_raster_ORTHO.pdf) * [download guide](https://www.geograndest.fr/portail/node/787) [See this sheet on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/1baf9317737acb13999eb5778473202fe88d1a97)