Wikipedia:Graphics Lab/Resources/GIS sources and palettes: Difference between revisions
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|layers=topography |precision_max=31m (1"arch) |covered_area=[http://dds.cr.usgs.gov/srtm/version2_1/SRTM1/Region_definition.jpg USA and dependencies] (landmass only) |datum=WGS 84 |projection = ? |extensions= .zip→.hgt |size_compressed= ~4Mo |size_uncompressed= ~30Mo |tile_size= 1⁰ x 1⁰arch |tiles_total= |comment = for mapmaking of the USA. File name from the lower-left corner's coordinates (ex: N48E001.hgt.zip) }}
* {{Cite GIS |name=SRTM30 |url_download=http://dds.cr.usgs.gov/srtm/version2_1/SRTM30 |publisher= NASA |year= 2000 |license= Public Domain |url_doc= http://dds.cr.usgs.gov/srtm/version2_1/Documentation/SRTM_Topo.pdf |layers= topography |precision_max= 930m (30"arch) |covered_area= 60⁰N-56⁰S (landmass only) |datum= WGS 84 |extensions= .zip → 12 files |size_compressed=<!-- various--> |size_uncompressed= ? |tile_size= 50°lat x 40°long |tiles_total= ? |comment = For very large maps anywhere in the world. A merge of SRTM and GTOPO30. File name from the top-left corner's coordinates. 12 files in the online folder, 10 are useful (to exclude: <tt>*.jpg.zip</tt> et <tt>*.gif.zip</tt>, which are previews). In [[3DEM]], après avoir décompressé ces 10 fichiers, sélectionner l'option <tt>GTOPO30 Tile</tt> puis dans la nouvelle fenêtre représentant la carte du monde, centrer le cadre sur la région d'intérêt et spécifier comme projection <tt>Lat/Lon</tt>. Naviguer dans l'arborescence et sélectionner le fichier <tt>.DEM</tt>.}}
* {{Cite GIS |name=SRTM Water Body Data (SWBD) |url_download=http://dds.cr.usgs.gov/srtm/version2_1/SWBD |publisher= NASA |year= 2000 |license= Public Domain |url_doc=http://dds.cr.usgs.gov/srtm/version2_1/SWBD/SWBD_Documentation/SWDB_Product_Specific_Guidance.pdf |layers= water bodies (major rivers, lakes, coastlines) |precision_max= 93m (3"arch) |covered_area= 60⁰N-56⁰S (landmass only) |datum= WGS 84 |extensions= .zip → .hgt |size_compressed= |size_uncompressed= |tile_size= |tiles_total= |comment = Vector layer, for waterways, lakes, and very precise coastline base on the sea's average level.}}
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