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5 M DEM australien
Le modèle numérique d'élévation (DEM) de l'Australie à la grille de 5 mètres, dérivé du modèle LiDAR, représente un DEM national de 5 mètres (terre nue) qui a été dérivé d'environ 236 relevés LiDAR individuels entre 2001 et 2015, couvrant une superficie de plus de 245 000 kilomètres carrés. … australia dem elevation elevation-topography ga geophysical -
DEM-H: modèle numérique d'élévation SRTM australien appliqué hydrologiquement
Le modèle d'élévation numérique (DEM-H) a été dérivé des données SRTM acquises par la NASA en février 2000. Le modèle a été conditionné hydrologiquement et le drainage a été appliqué. Le DEM-H capture les écoulements en fonction des altitudes SRTM et des lignes de courant cartographiées, et permet de délimiter … australia dem elevation elevation-topography ga geophysical -
DEM-S: Australian Smoothed Digital Elevation Model
Le modèle d'élévation numérique lissé (DEM-S) a été dérivé des données SRTM acquises par la NASA en février 2000. Le DEM-S représente la topographie de la surface terrestre (à l'exception des éléments de végétation) et a été lissé pour réduire le bruit et améliorer la représentation de la forme de la surface. Un processus adaptatif appliqué plus … australia dem elevation elevation-topography ga geophysical -
Aperçu du modèle numérique d'élévation intertidal national 25 m 1.0.0
Le modèle d'élévation numérique intertidal national (NIDEM, Bishop-Taylor et al., 2018, 2019) est un ensemble de données d'élévation à l'échelle continentale pour la zone intertidale exposée de l'Australie. NIDEM fournit la première représentation tridimensionnelle des plages et des côtes sablonneuses intertidales, des vasières, des côtes rocheuses et des récifs de l'Australie à 25 m de profondeur. australia dem elevation-topography ga
Datasets tagged ga in Earth Engine
[null,null,[],[[["\u003cp\u003eThis collection features a variety of Digital Elevation Models (DEMs) for Australia, including a 5-meter bare earth DEM derived from LiDAR and hydrologically enforced and smoothed DEMs derived from SRTM data.\u003c/p\u003e\n"],["\u003cp\u003eThe collection also includes a National Intertidal Digital Elevation Model (NIDEM) providing a 25-meter resolution representation of Australia's intertidal zones.\u003c/p\u003e\n"],["\u003cp\u003eSeveral datasets derived from Landsat imagery are available, offering insights into land cover, water observations, and statistical analysis of surface changes over time.\u003c/p\u003e\n"],["\u003cp\u003eThese datasets, produced by Geoscience Australia and Digital Earth Australia, provide valuable resources for environmental monitoring, resource management, and scientific research within Australia.\u003c/p\u003e\n"]]],["The datasets provide various models and data for Australia. These include Digital Elevation Models (DEMs) at 5m resolution from LiDAR surveys and hydrologically enforced/smoothed DEMs derived from SRTM data. The National Intertidal DEM represents Australia's intertidal zone at 25m. Also featured are Landsat-derived products like annual land cover classifications, water observation statistics, and geometric median/median absolute deviation datasets. These Landsat products utilize Landsat 5, 7, 8, and 9 data to provide insights into annual conditions and changes.\n"],null,["# Datasets tagged ga in Earth Engine\n\n-\n\n |-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### Australian 5M DEM](/earth-engine/datasets/catalog/AU_GA_AUSTRALIA_5M_DEM) |\n | The Digital Elevation Model (DEM) 5 meter Grid of Australia derived from LiDAR model represents a National 5 meter (bare earth) DEM which has been derived from some 236 individual LiDAR surveys between 2001 and 2015 covering an area in excess of 245,000 square kilometers. ... |\n | [australia](/earth-engine/datasets/tags/australia) [dem](/earth-engine/datasets/tags/dem) [elevation](/earth-engine/datasets/tags/elevation) [elevation-topography](/earth-engine/datasets/tags/elevation-topography) [ga](/earth-engine/datasets/tags/ga) [geophysical](/earth-engine/datasets/tags/geophysical) |\n\n-\n\n |--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### DEM-H: Australian SRTM Hydrologically Enforced Digital Elevation Model](/earth-engine/datasets/catalog/AU_GA_DEM_1SEC_v10_DEM-H) |\n | The Hydrologically Enforced Digital Elevation Model (DEM-H) was derived from the SRTM data acquired by NASA in February 2000. The model has been hydrologically conditioned and drainage enforced. The DEM-H captures flow paths based on SRTM elevations and mapped stream lines, and supports delineation of ... |\n | [australia](/earth-engine/datasets/tags/australia) [dem](/earth-engine/datasets/tags/dem) [elevation](/earth-engine/datasets/tags/elevation) [elevation-topography](/earth-engine/datasets/tags/elevation-topography) [ga](/earth-engine/datasets/tags/ga) [geophysical](/earth-engine/datasets/tags/geophysical) |\n\n-\n\n |-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### DEM-S: Australian Smoothed Digital Elevation Model](/earth-engine/datasets/catalog/AU_GA_DEM_1SEC_v10_DEM-S) |\n | The Smoothed Digital Elevation Model (DEM-S) was derived from the SRTM data acquired by NASA in February 2000. DEM-S represents ground surface topography (excluding vegetation features) and has been smoothed to reduce noise and improve the representation of surface shape. An adaptive process applied more ... |\n | [australia](/earth-engine/datasets/tags/australia) [dem](/earth-engine/datasets/tags/dem) [elevation](/earth-engine/datasets/tags/elevation) [elevation-topography](/earth-engine/datasets/tags/elevation-topography) [ga](/earth-engine/datasets/tags/ga) [geophysical](/earth-engine/datasets/tags/geophysical) |\n\n-\n\n |---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### Preview National Intertidal Digital Elevation Model 25m 1.0.0](/earth-engine/datasets/catalog/projects_ngis-cat_assets_DEA_NIDEM) |\n | The National Intertidal Digital Elevation Model (NIDEM; Bishop-Taylor et al. 2018, 2019) is a continental-scale elevation dataset for Australia's exposed intertidal zone. NIDEM provides the first three-dimensional representation of Australia's intertidal sandy beaches and shores, tidal flats and rocky shores and reefs at 25 m ... |\n | [australia](/earth-engine/datasets/tags/australia) [dem](/earth-engine/datasets/tags/dem) [elevation-topography](/earth-engine/datasets/tags/elevation-topography) [ga](/earth-engine/datasets/tags/ga) |"]]