{"id": "mex-inegi-lidar-1-5m", "type": "Collection", "links": [{"rel": "items", "type": "application/geo+json", "href": "https://api.darly.io/collections/mex-inegi-lidar-1-5m/items"}, {"rel": "parent", "type": "application/json", "href": "https://api.darly.io/"}, {"rel": "root", "type": "application/json", "href": "https://api.darly.io/"}, {"rel": "self", "type": "application/json", "href": "https://api.darly.io/collections/mex-inegi-lidar-1-5m"}, {"rel": "license", "href": "https://www.inegi.org.mx/inegi/terminos.html", "title": "INEGI Terminos de Libre Uso"}], "title": "MEX - INEGI LiDAR DEM 1.5m", "extent": {"spatial": {"bbox": [[-117.1670913696289, 14.749370574951172, -86.6665267944336, 32.688507080078125]]}, "temporal": {"interval": [["2016-01-01T00:00:00+00:00", "2026-01-01T00:00:00+00:00"]]}}, "license": "proprietary", "keywords": ["DEM", "DTM", "DSM", "elevation", "terrain", "lidar", "INEGI", "Mexico", "1.5m"], "providers": [{"url": "https://www.inegi.org.mx/app/geo2/elevacionesmex/", "name": "Instituto Nacional de Estad\u00edstica y Geograf\u00eda (INEGI)", "roles": ["producer", "licensor", "host"]}, {"url": "https://darly.io", "name": "Darly", "roles": ["processor"]}], "summaries": {"gsd": [1.5], "instruments": ["lidar"]}, "description": "High-resolution, LiDAR-derived Digital Elevation Models at 1.5-meter resolution from INEGI (Instituto Nacional de Estad\u00edstica y Geograf\u00eda), Mexico. This is INEGI's newer, higher-resolution lidar acquisition.\n\n**Not the CEM:** This collection holds INEGI's *Modelos Digitales de Elevaci\u00f3n de Alta Resoluci\u00f3n LiDAR*, derived from airborne lidar. It is a **distinct product from the nationwide 15 m *Continuo de Elevaciones Mexicano (CEM)***, which is interpolated from contour lines and other sources.\n\n**Source & method:** Airborne **lidar** point clouds. The terrain model (DTM / *Modelo Digital de Terreno*) is interpolated from last-return points classified as ground; the surface model (DSM / *Modelo Digital de Superficie*) uses first-to-last returns and includes vegetation, buildings and infrastructure.\n\n**Products:** DTM (terreno) and DSM (superficie).\n\n**Resolution:** 1.5 m ground sample distance.\n\n**Coordinate reference:** ITRF2008 (GRS80) UTM zones 11N\u201316N per tile (EPSG:6366\u20136371); orthometric elevations in meters on the NAVD88 vertical datum (EPSG:5703), per INEGI's *Norma T\u00e9cnica del Sistema Geod\u00e9sico Nacional* (DOF 2010-12-23, Art. 15).\n\n**Redistribution:** Republished by Darly under INEGI's *T\u00e9rminos de Libre Uso*. The source data has been re-hosted as Cloud-Optimized GeoTIFFs and may have been reprojected or reformatted from INEGI's original distribution. This is not an official INEGI product and does not represent an official position of INEGI. Source: INEGI.\n\n**Documentation:**\n- [INEGI elevation portal](https://www.inegi.org.mx/app/geo2/elevacionesmex/)\n- [LiDAR product description (PDF, ES)](https://www.inegi.org.mx/contenidos/temas/mapas/relieve/continental/metadatos/lidar_alta_resolucion.pdf)\n- [T\u00e9rminos de Libre Uso de la Informaci\u00f3n del INEGI](https://www.inegi.org.mx/contenidos/inegi/doc/terminos_info.pdf)\n", "item_assets": {"dsm": {"type": "image/tiff; application=geotiff; profile=cloud-optimized", "roles": ["data", "dsm"], "title": "Digital Surface Model (DSM)"}, "dtm": {"type": "image/tiff; application=geotiff; profile=cloud-optimized", "roles": ["data", "dtm"], "title": "Digital Terrain Model (DTM)"}}, "sci:citation": "Fuente: INEGI, Modelos Digitales de Elevaci\u00f3n de Alta Resoluci\u00f3n LiDAR (1.5 m).", "stac_version": "1.0.0", "stac_extensions": ["https://stac-extensions.github.io/item-assets/v1.0.0/schema.json", "https://stac-extensions.github.io/scientific/v1.0.0/schema.json"]}