WMS This service allows the visualization of historical orthophoto mosaics based on available aerial photographs covering parts of the Belgian territory. The data is accessible via a Web Map Service (WMS). Orthophotos are aerial photographs that have been geometrically corrected (orthorectified) to eliminate distortions caused by terrain relief, lens distortion, and camera tilt. Unlike raw aerial imagery, orthophotos have a uniform scale and accurate geometry, making them suitable for cartography, measurements, and visual analysis. This specific service includes historical orthophotos from 1950, 1951, 1952 and 1954, derived from aerial surveys carried out by the National Geographic Institute (NGI). During this period, only analogue aerial photographs are available. The analogue images were scanned at high resolution and orthorectified. The resulting orthophotos were assembled into mosaics and georeferenced in the Lambert 2008 coordinate system. All orthophotos are panchromatic (black and white). The ground resolution (GSD) is 50 cm. The spatial coverage of this service is limited to the areas for which aerial photographs were available during the mentioned period. infoMapAccessService Federal viewer Aerial photographs and orthophotographs Environment Orthoimagery federal government aerial photograph Orthoimagery National historical orthophotos, aerial photographs, 1950, 1951, 1952, 1954, panchromatic, black and white, 50 cm resolution Floor Van Damme National Geographic Institute - Spatial Data Infrastructure pointOfContact postal

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Brussels Brussels Capital Region 1000 Belgium 0032 (0)2 629 82 82 0032 (0)02 629 82 83 metadata@ngi.be none none text/xml image/png image/jpeg image/gif image/GeoTIFF image/tiff text/plain text/html text/xml image/png image/jpeg image/gif image/GeoTIFF image/tiff XML INIMAGE BLANK http://publish.geo.be/geonetwork/srv/eng/csw-NGIhosted?request=GetRecordById&service=CSW&version=2.0.2&namespace=xmlns%28csw=http://www.opengis.net/cat/csw%29&resultType=results&outputSchema=http://www.isotc211.org/2005/gmd&outputFormat=application/xml&typeNames=csw:Record&elementSetName=full&constraintLanguage=CQL_TEXT&constraint_language_version=1.1.0&id=41f6ea30-720b-11f0-8c1e-00be433d8c24 application/vnd.iso.19139+xml eng eng CRS:84 EPSG:4326 EPSG:3812 EPSG:3857 EPSG:25831 EPSG:25832 EPSG:31370 EPSG:4258 EPSG:3035 2.5257209746879496 6.45901428423457 49.48461347792561 51.50583649955355 orthophoto_1954 2.5257209746879496 6.45901428423457 49.48461347792561 51.50583649955355 text/xml orthophoto_1954 orthophoto_1954 2.5257209746879496 6.45901428423457 49.48461347792561 51.50583649955355 None text/xml orthophoto_1952 2.5257209746879496 6.45901428423457 49.48461347792561 51.50583649955355 text/xml orthophoto_1952 orthophoto_1952 2.5257209746879496 6.45901428423457 49.48461347792561 51.50583649955355 None text/xml orthophoto_1951 2.5257209746879496 6.45901428423457 49.48461347792561 51.50583649955355 text/xml orthophoto_1951 orthophoto_1951 2.5257209746879496 6.45901428423457 49.48461347792561 51.50583649955355 None text/xml orthophoto_1950 2.5257209746879496 6.45901428423457 49.48461347792561 51.50583649955355 text/xml orthophoto_1950 orthophoto_1950 2.5257209746879496 6.45901428423457 49.48461347792561 51.50583649955355 None text/xml