The whole canton of ZH is considered a perimeter, including a buffer of approx. 500 m. The orthophotos are available in real colors (RGB) as well as in false color infrared (CIR). This geolion entry refers to the CIR images. The Geolion entry for the RGB images can be found here (GIS-ZH No. 394). The “tile” of the orthophoto is based on the frame sheets of the overview plan. Flight data 2015: 14-24 April northern part to coordinate 1236000 flight data 2016: 6 and 7 May south Coordinate 1236000 Aerotriangulation took place in 2 blocks.
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