Il DEM di Copernicus è un modello digitale di superficie (DSM) che rappresenta la
superficie della Terra, inclusi edifici, infrastrutture e vegetazione.
Questo DEM deriva da un DSM modificato denominato WorldDEM™, ovvero è stato incluso l'appiattimento
dei corpi idrici e il flusso coerente dei fiumi. Sono state apportate modifiche anche a
coste e litorali, a elementi speciali come aeroporti e a strutture
del terreno inverosimili.
Il prodotto WorldDEM si basa sui dati satellitari radar acquisiti durante
la missione TanDEM-X, finanziata da un partenariato pubblico-privato
tra lo stato tedesco, rappresentato dal Centro aerospaziale tedesco (DLR)
e Airbus Defence and Space. Per saperne di più, consulta la
documentazione del set di dati.
L'asset Earth Engine è stato importato dai file DGED.
Bande
Dimensioni pixel 30 metri
Bande
Nome
Min
Max
Dimensioni dei pixel
Descrizione
DEM
metri
Modello digitale di superficie
EDM
0
13
metri
La maschera di modifica dei dati indica tutti i pixel DEM modificati
durante il processo di modifica del terreno e dell'idrografia.
FLM
0
101
metri
La maschera di riempimento viene creata principalmente durante il processo di modifica del terreno.
HEM
metri
La maschera di errore di altezza rappresenta l'errore di altezza corrispondente
per ogni pixel DEM sotto forma di deviazione standard derivata da
considerazioni geometriche e di coerenza interferometrica.
WBM
0
3
metri
La maschera del corpo idrico mostra tutti i pixel DEM classificati come acqua
e modificati in base alle categorie Oceano, Lago o Fiume.
EDM Class Table
Valore
Colore
Descrizione
0
Nessuna
Vuoto (nessun dato)
1
Nessuna
Non modificato
2
Nessuna
Riempimento dei dati di elevazione esterni
3
Nessuna
Pixel interpolati
4
Nessuna
Pixel levigati
5
Nessuna
Modifica dell'aeroporto
6
Nessuna
Pixel di elevazione negativa rialzati
7
Nessuna
Pixel appiattiti
8
Nessuna
Pixel dell'oceano
9
Nessuna
Pixel del lago
10
Nessuna
Pixel del fiume
11
Nessuna
Pixel della battigia
12
Nessuna
Pixel trasformati (serie di pixel impostati manualmente)
13
Nessuna
Pixel spostati
Tabella delle classi FLM
Valore
Colore
Descrizione
0
Nessuna
Vuoto (nessun dato)
1
Nessuna
Modificato (ad eccezione dei pixel riempiti)
2
Nessuna
Non modificato / non compilato
3
Nessuna
ASTER
4
Nessuna
SRTM90
5
Nessuna
SRTM30
6
Nessuna
GMTED2010
7
Nessuna
SRTM30plus
8
Nessuna
TerraSAR-X Radargrammetric DEM
9
Nessuna
AW3D30
100
Nessuna
DEM della Norvegia
101
Nessuna
DSM05 Spagna
Tabella delle classi WBM
Valore
Colore
Descrizione
0
Nessuna
Nessuna acqua
1
Nessuna
Oceano
2
Nessuna
Lago
3
Nessuna
Fiume
Termini e condizioni d'uso
Termini e condizioni d'uso
Il set di dati GLO-30 è disponibile in tutto il mondo con una licenza senza costi, ad eccezione di due paesi (Armenia e Azerbaigian). Licenza per il
DEM di Copernicus.
Il DEM di Copernicus è un modello di superficie digitale (DSM) che rappresenta la superficie della Terra, inclusi edifici, infrastrutture e vegetazione. Questo DEM deriva da un DSM modificato denominato WorldDEM™, ovvero è stato incluso l'appiattimento dei corpi idrici e il flusso coerente dei fiumi. Modifica di coste e litorali, speciali…
[null,null,[],[[["\u003cp\u003eThe Copernicus DEM GLO-30 is a global digital surface model (DSM) representing the Earth's surface, including buildings, infrastructure, and vegetation, with a 30-meter resolution.\u003c/p\u003e\n"],["\u003cp\u003eIt is derived from the WorldDEM product, based on TanDEM-X Mission radar data, and includes edits for water bodies, shorelines, and terrain structures.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset provides various bands such as DEM, EDM, FLM, HEM, and WBM, each offering specific information about elevation, edits, and water bodies.\u003c/p\u003e\n"],["\u003cp\u003eCopernicus DEM GLO-30 data is freely available worldwide (except for Armenia and Azerbaijan) under a specific license.\u003c/p\u003e\n"],["\u003cp\u003eIt is accessible through Google Earth Engine, enabling petabyte-scale scientific analysis and visualization.\u003c/p\u003e\n"]]],["The Copernicus DEM GLO-30 dataset, available from 2010-12-01 to 2015-01-31, offers a 30-meter resolution Digital Surface Model derived from the WorldDEM. Key actions include editing processes like water body flattening, river flow consistency, and terrain adjustments. The dataset comprises bands like DEM, EDM, FLM, HEM, and WBM, each with specific editing, filling, water, or height error information. It is accessible via Google Earth Engine, and is free for usage with some exceptions.\n"],null,["# Copernicus DEM GLO-30: Global 30m Digital Elevation Model\n\nDataset Availability\n: 2010-12-01T00:00:00Z--2015-01-31T00:00:00Z\n\nDataset Provider\n:\n\n\n [Copernicus](https://spacedata.copernicus.eu/collections/copernicus-digital-elevation-model)\n\nTags\n:\n[copernicus](/earth-engine/datasets/tags/copernicus) [dem](/earth-engine/datasets/tags/dem) [elevation](/earth-engine/datasets/tags/elevation) [elevation-topography](/earth-engine/datasets/tags/elevation-topography) [geophysical](/earth-engine/datasets/tags/geophysical) \n\n#### Description\n\nThe Copernicus DEM is a Digital Surface Model (DSM) which represents the\nsurface of the Earth including buildings, infrastructure and vegetation.\nThis DEM is derived from an edited DSM named WorldDEM\\&trade, i.e. flattening of\nwater bodies and consistent flow of rivers has been included. Editing of\nshore- and coastlines, special features such as airports and implausible\nterrain structures has also been applied.\n\nThe WorldDEM product is based on the radar satellite data acquired during\nthe TanDEM-X Mission, which is funded by a Public Private Partnership\nbetween the German State, represented by the German Aerospace Centre (DLR)\nand Airbus Defence and Space. More details are available in the dataset\n[documentation](https://spacedata.copernicus.eu/documents/20123/121239/GEO1988-CopernicusDEM-SPE-002_ProductHandbook_I4.0.pdf).\n\nEarth Engine asset has been ingested from the DGED files.\n| **Note:** See the code example for the recommended way of computing slope. Unlike most DEMs in Earth Engine, this is an image collection due to multiple resolutions of source files that make it impossible to mosaic them into a single asset, so the slope computations need a reprojection.\n\n### Bands\n\n\n**Pixel Size**\n\n30 meters\n\n**Bands**\n\n| Name | Min | Max | Pixel Size | Description |\n|-------|-----|-----|------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `DEM` | | | meters | Digital Surface Model |\n| `EDM` | 0 | 13 | meters | The Edit Data Mask indicates all DEM pixels that were modified during the terrain and hydro editing process. |\n| `FLM` | 0 | 101 | meters | The Filling Mask is created primarily during the terrain editing process. |\n| `HEM` | | | meters | The Height Error Mask represents the corresponding height error for each DEM pixel in the form of the standard deviation derived from the interferometric coherence and geometrical considerations. |\n| `WBM` | 0 | 3 | meters | The Water Body Mask shows all DEM pixels which are classified as water and edited according to the categories Ocean, Lake or River. |\n\n**EDM Class Table**\n\n| Value | Color | Description |\n|-------|-------|------------------------------------------------|\n| 0 | None | Void (no data) |\n| 1 | None | Not edited |\n| 2 | None | Infill of external elevation data |\n| 3 | None | Interpolated pixels |\n| 4 | None | Smoothed pixels |\n| 5 | None | Airport editing |\n| 6 | None | Raised negative elevation pixels |\n| 7 | None | Flattened pixels |\n| 8 | None | Ocean pixels |\n| 9 | None | Lake pixels |\n| 10 | None | River pixels |\n| 11 | None | Shoreline pixels |\n| 12 | None | Morphed pixels (series of pixels manually set) |\n| 13 | None | Shifted pixels |\n\n**FLM Class Table**\n\n| Value | Color | Description |\n|-------|-------|--------------------------------|\n| 0 | None | Void (no data) |\n| 1 | None | Edited (except filled pixels) |\n| 2 | None | Not edited / not filled |\n| 3 | None | ASTER |\n| 4 | None | SRTM90 |\n| 5 | None | SRTM30 |\n| 6 | None | GMTED2010 |\n| 7 | None | SRTM30plus |\n| 8 | None | TerraSAR-X Radargrammetric DEM |\n| 9 | None | AW3D30 |\n| 100 | None | Norway DEM |\n| 101 | None | DSM05 Spain |\n\n**WBM Class Table**\n\n| Value | Color | Description |\n|-------|-------|-------------|\n| 0 | None | No water |\n| 1 | None | Ocean |\n| 2 | None | Lake |\n| 3 | None | River |\n\n### Terms of Use\n\n**Terms of Use**\n\nThe GLO-30 dataset is available worldwide with a free license with the\nexception of two countries (Armenia and Azerbaijan). [License for Copernicus\nDEM](https://docs.sentinel-hub.com/api/latest/static/files/data/dem/resources/license/License-COPDEM-30.pdf).\n\n### Explore with Earth Engine\n\n| **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar dataset = ee.ImageCollection('COPERNICUS/DEM/GLO30');\nvar elevation = dataset.select('DEM');\nvar elevationVis = {\n min: 0.0,\n max: 1000.0,\n palette: ['0000ff','00ffff','ffff00','ff0000','ffffff'],\n};\nMap.setCenter(-6.746, 46.529, 4);\nMap.addLayer(elevation, elevationVis, 'DEM');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/COPERNICUS/COPERNICUS_DEM_GLO30) \n[Copernicus DEM GLO-30: Global 30m Digital Elevation Model](/earth-engine/datasets/catalog/COPERNICUS_DEM_GLO30) \nThe Copernicus DEM is a Digital Surface Model (DSM) which represents the surface of the Earth including buildings, infrastructure and vegetation. This DEM is derived from an edited DSM named WorldDEM\\&trade, i.e. flattening of water bodies and consistent flow of rivers has been included. Editing of shore- and coastlines, special ... \nCOPERNICUS/DEM/GLO30, copernicus,dem,elevation,elevation-topography,geophysical \n2010-12-01T00:00:00Z/2015-01-31T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://spacedata.copernicus.eu/collections/copernicus-digital-elevation-model)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_DEM_GLO30)"]]
