Orthophotoplan Flight GAI - Shooting 1954-55

Grayscale images from aerial photos in digital orthoprojection with 50cm pixels. The aerophotographic shooting Flight GAI' curated by the IGM and performed by the consortiumGruppo Aereo Italiano' in 1954-55 is the first stereoscopic shooting of the entire Italian territory. In the lowland areas the frames were taken at an altitude of around 5,000 m, resulting in a scale of about 1:30,000; this flight is a precious historical document of the territory in the immediate post-war period.

Data and Resources

Additional Info

Field	Value
Last Updated	April 28, 2023, 23:22 (UTC)
Created	April 28, 2023, 23:22 (UTC)
GUID	r_emiro:2011-09-23T172718
access_constraints	[]
bbox-east-long	13.11
bbox-north-lat	44.61
bbox-south-lat	43.42
bbox-west-long	12.11
contact-email	luisa.perini@regione.emilia-romagna.it
coupled-resource	[]
dataset-reference-date	[{"type": "publication", "value": "2006-01-01"}]
frequency-of-update	notPlanned
licence	["CC BY 3.0 (Creative Commons - Attribution) https://creativecommons.org/licenses/by/3.0/legalcode.it", "Public data (Digital Administration Code)"]
lineage	The aerial photos are partly owned by us (Seismic Geological and Soil Service of the Emilia-Romagna Region) and partly were acquired by the IBC (Institute for artistic, cultural and natural heritage) of the Emilia-Romagna Region. The digital orthophoto is the product of the differential rectification of the digitized aerial photo, orthorectified on the basis of the digital terrain model (DTM) of the Region with a regular 5-metre grid in terrain coordinates and georeferenced in the regional geodetic-cartographic system UTM*. The digital orthophoto is the result of the mosaic of the useful frames and the information content depends on the nominal size of the pixel, which in the case in question is approximately 0.5m X 0.5m in terrain coordinates.
metadata-date	2011-09-23
metadata-language	ita
progress
resource-type	dataset
responsible-party	[{"name": "Geological, Seismic and Soil Service - Emilia-Romagna Region", "roles": ["pointOfContact"]}]
spatial	{"type": "Polygon", "coordinates": [[[12.11, 43.42], [13.11, 43.42], [13.11, 44.61], [12.11, 44.61], [12.11, 43.42]]]}
spatial-data-service-type
spatial-reference-system	Monte Mario / TM Emilia-Romagna
spatial_harvester	true
temporal-extent-begin	1954-08-04
temporal-extent-end	1955-07-30