O DEM do Copernicus é um modelo digital de superfície (DSM, na sigla em inglês) que representa a superfície da Terra, incluindo edifícios, infraestrutura e vegetação.
Esse DEM é derivado de um DSM editado chamado WorldDEM&trade, ou seja, o nivelamento de corpos d'água e o fluxo consistente de rios foram incluídos. Também foram feitas edições de litorais e costas, além de recursos especiais, como aeroportos e estruturas de terreno implausíveis.
O produto WorldDEM se baseia nos dados de satélite de radar adquiridos durante a missão TanDEM-X, financiada por uma parceria público-privada entre o estado alemão, representado pelo Centro Aeroespacial Alemão (DLR), e a Airbus Defence and Space. Confira mais detalhes na documentação do conjunto de dados.
O recurso do Earth Engine foi ingerido dos arquivos DGED.
Bandas
Tamanho do pixel 30 metros
Bandas
Nome
Mín.
Máx.
Tamanho do pixel
Descrição
DEM
metros
Modelo digital de superfície
EDM
0
13
metros
A máscara de edição de dados indica todos os pixels do DEM que foram modificados durante o processo de edição de terreno e hidrografia.
FLM
0
101
metros
A máscara de preenchimento é criada principalmente durante o processo de edição de terreno.
HEM
metros
A máscara de erro de altura representa o erro de altura correspondente para cada pixel do DEM na forma do desvio padrão derivado da coerência interferométrica e das considerações geométricas.
WBM
0
3
metros
A máscara de corpo d'água mostra todos os pixels do DEM classificados como água e editados de acordo com as categorias "Oceano", "Lago" ou "Rio".
Tabela de classes do EDM
Valor
Cor
Descrição
0
Nenhum
Vazio (sem dados)
1
Nenhum
Não editado
2
Nenhum
Preenchimento de dados externos de elevação
3
Nenhum
Pixels interpolados
4
Nenhum
Pixels suavizados
5
Nenhum
Edição de aeroportos
6
Nenhum
Pixels de elevação negativa aumentados
7
Nenhum
Pixels achatados
8
Nenhum
Pixels do oceano
9
Nenhum
Pixels do lago
10
Nenhum
Pixels de rios
11
Nenhum
Pixels de linha costeira
12
Nenhum
Pixels transformados (série de pixels definidos manualmente)
13
Nenhum
Pixels deslocados
Tabela de classes do FLM
Valor
Cor
Descrição
0
Nenhum
Vazio (sem dados)
1
Nenhum
Editada (exceto pixels preenchidos)
2
Nenhum
Não editado / não preenchido
3
Nenhum
ASTER
4
Nenhum
SRTM90
5
Nenhum
SRTM30
6
Nenhum
GMTED2010
7
Nenhum
SRTM30plus
8
Nenhum
DEM radargramétrico do TerraSAR-X
9
Nenhum
AW3D30
100
Nenhum
DEM da Noruega
101
Nenhum
DSM05 Espanha
Tabela de classes do WBM
Valor
Cor
Descrição
0
Nenhum
Sem água
1
Nenhum
Oceano
2
Nenhum
Lago
3
Nenhum
Rio
Termos de Uso
Termos de Uso
O conjunto de dados GLO-30 está disponível no mundo todo com uma licença sem custo financeiro, exceto em dois países (Armênia e Azerbaijão). Licença para o DEM do Copernicus.
O DEM do Copernicus é um modelo digital de superfície (DSM, na sigla em inglês) que representa a superfície da Terra, incluindo edifícios, infraestrutura e vegetação. Esse DEM é derivado de um DSM editado chamado WorldDEM&trade, ou seja, o nivelamento de corpos d'água e o fluxo consistente de rios foram incluídos. Edição de litorais e costas, especial …
[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)"]]
