Orthophotos 1 m — Mainland Portugal — 1995

Mosaic of aerial photographs of mainland Portugal, in false-color infrared film, obtained in the summer of 1995 from a 1:40 000 scale flight, orthorectified with Digital Land Model generated from the 1:25 000 scale altimetry. In order to improve the positional quality of these images, an adjustment of orthophotos that presented positional errors was made using the 2010 orthophoto coverage as a reference. These images were subjected to a mosaic process and sectioned into 4,874 units. All information was transformed from the reference system Datum Lisboa/Hayford — Gauss with false origin for the ETRS89/PT-TM06 system. For the use of viewing and downloading services, please refer to the Support Guides on the open data page of DGT (https://www.dgterritorio.gov.pt/dados-abertos).