1980-1986 National Flight

National black and white photogrammetric flight commissioned by the Geographical and Cadastral Institute (current National Geographic Institute). Flight dates 1980 1986. Black and white frames at 1:30,000 scale. Pixel size (GSD) of 75 cm and 45 cm, depending on zones. Geodesic reference system ED50 in the Peninsula, Balearic Islands, Ceuta and Melilla, and REGCAN95 in the Canary Islands and UTM projection in the corresponding spindle. The Autonomous Communities of Extremadura and the Balearic Islands are offered in ETRS89 and UTM in spindle 30 and 31, respectively.