| Title | Digital elevation model and shaded relief map / Modèle d'élévation digitale et carte de relief |
| Download | Download (whole publication) |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Geomatics Canada |
| Source | Atlas géoscientifique numérique, ceinture de Cape Smith et environs, péninsule d'Ungava, Québec-Nunavut/Digital geoscience atlas of the Cape Smith Belt and adjacent domains, Ungava Peninsula,
Quebec-Nunavut; by St-Onge, M R; Lamothe, D; Henderson, I; Ford, A; Geological Survey of Canada, Open File 5117, 2007., https://doi.org/10.4095/223365  Open Access |
| Links | Metadata - Métadonnées 1
|
| Links | Metadata - Métadonnées 2
|
| Links | Canadian Database of Geochemical Surveys, downloadable
files
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| Links | Banque de données de levés géochimiques du Canada,
fichiers téléchargeables
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| Year | 2007 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Map Info. | topographic, modèle altimétrique numérique/digital elevation model, 1:50,000 |
| Map Info. | topographic, modèle altimétrique numérique/digital elevation model, 1:250,000 |
| Map Info. | topographic, topographique, 1:50,000 |
| Map Info. | topographic, topographique, 1:250,000 |
| Media | DVD; digital; on-line |
| Related | This publication is contained in Atlas géoscientifique
numérique, ceinture de Cape Smith et environs, péninsule d'Ungava, Québec-Nunavut |
| File format | rrd (ESRI® ArcReader(TM) v.9.1, is included / est fourni); tif; txt; xml; pdf |
| Province | Nunavut; Quebec |
| NTS | 25E/03; 25E/04; 25E/05; 25E/06; 25E/11; 25E/12; 25E/13; 25E/14; 35C; 35D/01; 35D/02; 35D/07; 35D/08; 35D/09; 35D/10; 35D/15; 35D/16; 35E/01; 35E/02; 35E/07; 35E/08; 35E/09; 35E/10; 35E/15; 35E/16; 35F; 35G;
35H; 35I; 35J; 35K; 35L/01; 35L/02; 35L/07; 35L/08; 35L/09; 35L/10; 35L/15; 35L/16 |
| Area | Ungava Peninsula |
| Lat/Long WENS | -79.0000 -71.0000 63.0000 60.0000 |
| Subjects | general geology; compilation; digital terrain modelling; models; topography |
| Illustrations | digital elevation models |
| Program | Ministère des Ressources naturelles et de la Faune du Québec, Géologie Québec, Programme de financement |
| Released | 2007 01 29 |
| Abstract | The Canadian Digital Elevation Data, Level 1 (CDED1) consists of an ordered array of ground elevations at regularly spaced intervals. The CDED1 is based on National Topographic Data Base (NTDB) digital
files at scales of 1:50 000 and 1:250 000 or various scaled positional data acquired from the provinces, according to the National Topographic System (NTS).
The coverage for every file corresponds to half an NTS map, which means that there are
western and eastern parts to the CDED1 for each NTS map. The grid spacing is based on geographic coordinates at a maximum and minimum resolution of 0.75 and 3 arc seconds for the 1:50 000, and 3 and 12 arc seconds for the 1:250 000 respectively,
depending on latitude. A CDED1 file consists of elevation data recorded in metres relative to Mean Sea Level (MSL) based on the North American Datum 1983 (NAD83) horizontal reference datum. The Centre for Topographic Information (CTI) jointly
produces the CDED1 with federal and provincial government agencies and the private sector, using terrain-modelling software.
CDED1 files are delivered in ASCII format for either DOS or UNIX operating systems and are available via the File Transfer
Protocol (FTP). The data should be compatible with all translators designed for the United States Geological Survey (USGS) Digital Terrain Elevation Data (DTED). The files are compressed using the PKZIP compression software.
The shaded relief
image is created from the The Canadian Digital Elevation Data, Level 1 (CDED1) which consists of an ordered array of ground elevations at regularly spaced intervals. The CDED1 is based on National Topographic Data Base (NTDB) digital files at scales
of 1:50 000 and 1:250 000 or various scaled positional data acquired from the provinces, according to the National Topographic System (NTS). The shaded relief image gives a simulated appearance of the sun shining on the terrane at a specific azimuth
and altitude. |
| GEOSCAN ID | 223365 |
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