Intersection mapping with traffic control device.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

Historical forest airborne imagery corresponds to an annual collection of orthophotographs, acquired by aerial overview in order to meet the needs of the ecoforest inventory of southern Quebec (IEQM) and the global forest planning cycle (operational forest planning, forest planning, forest monitoring and forest activity controls). These images serve, among other things, to feed the process of photo-interpretation and production of the ecoforest map essential for sustainable forest management, as well as the overall forest planning cycle. Historical orthophotographs are assembled into mosaics. Each mosaic groups together the images from an acquisition project that have the same shooting year, the same spatial resolution and the same spectral bands. Mosaics have been produced since 2002 for ecoforest inventory and since 2004 for planning, monitoring and control images. The spatial resolution is generally 20, 21 or 30 cm (with a few exceptions of 50 and 63 cm) for the images that make up the mosaics of the ecoforest inventory, while it is much more variable for the planning, monitoring and control images (from 4 to 150 cm). Spectral bands and colors of images vary: black and white (panchromatic [PAN]), infrared (IRP), or natural (red, green, and blue colors [RGB]). The images used to produce the mosaics are spread over almost all of Quebec, south of the 52nd parallel. They are acquired in a cycle of about 10 years for the IEQM and annually for the needs of the global forest planning cycle. Note that imagery acquired through partnerships has been excluded due to their more restrictive broadcast license. The orthophotography mosaics of the ecoforest inventory are available for download in three formats depending on the territory (JPEG 2000, ECW and GeoTIFF) and are also accessible for visualization using a web mapping service (WMTS). Note that the orthophotography mosaics for planning, monitoring and controls are only available for viewing and not for download.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

[IS] Náttúrufræðistofnun heldur utan um kontrólpunkta sem er settir niður til að staðsetja loftmyndir. Í flestum tilfellum er um ræða hvíta ferningar sem eru 60x60 sm, en á jöklum eru þeir bleikir. Þar sem ekki er hægt að setja niður kontólpunkta í formi ferninga er miðað við aðra fasta punkta í landslaginu. X, Y nákvæmni: 2-3 sm Hæðarnákvæmni: 3-5 sm Fitjueigindir, útskýringar: efni_raun: Lýsir gerð punktsins (Náttúrulegur punktur, Gúmmímotta, Málað, Suðuplast, Bleik plata). Eiginleiki mynd sýnir hvað er mælt, almennt miðjan á hlutnum nema annað sé tekið fram á myndinni. austur_maelt: Austur-hnit í ISN2016 EPSG:8088 nordur_maelt: Norður-hnit í ISN2016 EPSG:8088 ish_haed_maelt: ish2004 hæð sporvolu_haed_maelt: Hæð yfir ellipsoíð dagsetning_maelt: Mælingardagur mynd: Hlekkur á mynd af punktinum (ef tiltækt) maeli_adferd: Mæliaðferð, hvort sem er RTK eða FastStatic [EN] This dataset contains ground control points placed by the Icelandic Institute for Nature Research that can be used for aerial imagery geolocation. Normally white squares of 60x60cm or natural objects or pink squares 60x60cm on glaciers. X, Y Precision: 2-3 cm Elevation precision: 3-5 cm Properties description: efni_raun: describes the type of point (Natual point, Rubber mat, Painted, Welded plastic, Pink plate), the property mynd shows what is measured, generally the center of the object if not indicated differently in the image. austur_maelt: easting in ISN2016 EPSG:8088 nordur_maelt: northing in ISN2016 EPSG:8088 ish_haed_maelt: ish2004 elevation sporvolu_haed_maelt: ellipsoidal height dagsetning_maelt: date of measurement mynd: link to the image of the point (if available) maeli_adferd: Measurement method if RTK or FastStatic