Model DEM Copernicus to cyfrowy model powierzchni (DSM), który przedstawia powierzchnię Ziemi, w tym budynki, infrastrukturę i roślinność.
Ten DEM pochodzi z zmodyfikowanego DSM o nazwie WorldDEM&trade, czyli zawiera spłaszczone zbiorniki wodne i spójny przepływ rzek. Wprowadzono też zmiany w linii brzegowej, specjalnych obiektach, takich jak lotniska, oraz w nierealistycznych strukturach terenu.
Produkt WorldDEM jest oparty na danych z satelity radarowego uzyskanych podczas misji TanDEM-X, która jest finansowana w ramach partnerstwa publiczno-prywatnego między państwem niemieckim reprezentowanym przez Niemieckie Centrum Lotnictwa i Kosmonautyki (DLR) a Airbus Defence and Space. Więcej informacji znajdziesz w dokumentacji zbioru danych.
Zasób Earth Engine został wczytany z plików DGED.
Pasma
Rozmiar piksela 30 metrów
Pasma
Nazwa
Minimum
Maks.
Rozmiar piksela
Opis
DEM
metry
Cyfrowy model terenu
EDM
0
13
metry
Maska danych edycji wskazuje wszystkie piksele DEM, które zostały zmodyfikowane podczas procesu edycji terenu i hydrologii.
FLM
0
101
metry
Maska wypełnienia jest tworzona głównie podczas edycji terenu.
HEM
metry
Maska błędu wysokości przedstawia odpowiedni błąd wysokości
dla każdego piksela DEM w postaci odchylenia standardowego uzyskanego na podstawie
koherencji interferometrycznej i rozważań geometrycznych.
WBM
0
3
metry
Maska zbiornika wodnego pokazuje wszystkie piksele DEM, które są sklasyfikowane jako woda i edytowane zgodnie z kategoriami Ocean, Jezioro lub Rzeka.
Zbiór danych GLO-30 jest dostępny na całym świecie na podstawie bezpłatnej licencji, z wyjątkiem 2 krajów (Armenii i Azerbejdżanu). Licencja na dane DEM z programu Copernicus.
Copernicus DEM to cyfrowy model powierzchni (DSM), który przedstawia powierzchnię Ziemi, w tym budynki, infrastrukturę i roślinność. Ten DEM pochodzi z zmodyfikowanego DSM o nazwie WorldDEM&trade, czyli uwzględniono w nim spłaszczenie zbiorników wodnych i spójny przepływ rzek. Edycja linii brzegowej i wybrzeża, specjalne…
[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)"]]
