Historical Digital Orthophotos 1951 - 1969 NW
Description
Orthophotos are high-resolution, distortion-free, true-to-scale images of the Earth's surface. They are produced by photogrammetric methods in knowledge of the orientation parameters and with the addition of a digital terrain model from aerial images, which are available as vertical images. Orthophotos become historical as soon as they are replaced by DOP of current flight. Over the years, orthophoto production has been constantly adapted to changing needs and technical progress. Historical orthophotos from 1951 to 1969 can be found in the analogue DGK5 archive as raster or halftone slides. These orthophoto vintages were gradually converted to DOP with a GSD of 40 cm on the flatbed scanner and have been fully digital since 2022.
Resources
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Tags
- advmis
- abteilung-7
- luftbilder
- geobasisdaten
- geobasis-nrw
- opendata
- landesvermessung
- digitales-orthophoto
- luftbild
- nrw
- histdop51
- luftbildinformationen
- hansa-luftbild
- bezirksregierung-köln
- dez72
- nw
- dop
- landesarchiv-nrw
- digitale-orthophotos
- historische-dop
- histdop
- historische-digitale-orthophotos
- nordrhein-westfalen