[gdal-dev] Unknown projection

Matt.Wilkie Matt.Wilkie at yukon.ca
Wed Jan 31 11:22:57 PST 2024


Hello gdal,

I have a collection of aerial photos for which neither gdal nor arc pro recognize the projection. To my eye the .prj files look ok. Attached txt is gdalinfo v3.8.0 report along with the .prj. I manually formatted the below for readability:

PROJCS["UTM_07N",
    GEOGCS["NAD83-CSRS Epoch 2006 (7 Param+Vel)",
        DATUM["NAD83-CSRS Epoch 2006 (7 Param+Vel)",
            SPHEROID["GRS 80", 6378137,298.2572221010002],
            TOWGS84[1.0026,-1.9083,-0.5165, 1.288877171229702e-07, 8.998141921392988e-09, 5.376098909823645e-08, -1.18e-09]],
        PRIMEM["Greenwich",0],
        UNIT["degree",0.0174532925199433]
        ],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",-141],
    PARAMETER["scale_factor",0.9996],
    PARAMETER["false_easting",500000],
    PARAMETER["false_northing",0],
    UNIT["metres",1]
    ]

Thanks!
Matt Wilkie
Geomatics Developer & Administrator
Environment | Technology, Innovation and Mapping
T 867-667-8133 | Yukon.ca<http://yukon.ca/>
Hours: 08:30-16:30, Mon-Wed: Office, Thu: Remote, Fri: Away.

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