Copernicus DEM 30/90m dataset

The Copernicus DEM (COP-DEM) is a digital elevation model (DEM) with a resolution of 30 meters and 90 meters on a global scale released by the European Space Agency (ESA). The model is a Digital Surface Model (DSM), which represents the elevation of the Earth's surface, including buildings, infrastructure, and vegetation. COP-DEM is open source and has one of the highest plan and elevation accuracy DEMs. Preface – Artificial Intelligence Tutorial

The Copernicus Digital Elevation Model is a global digital elevation model project developed by the European Space Agency (ESA) for the European Joint Earth Observation Program (Copernicus), also known as COP-DEM. The digital elevation model collects elevation data using a variety of technologies, including radar altimeters, optical satellites, and lidar, covering a global scale with a resolution of up to 30 meters. Copernicus digital elevation models can be used in a variety of geological, ecological, topographical and environmental applications such as flood warnings, land use planning, coastline management, geophysical research, and more.

COP-DEM is based on the synthesis of radar and optical data from the Sentinel-1 and Sentinel-2 satellites. The model also uses data from other sources, such as maps and LiDAR data. COP-DEM is updated every two years and is an invaluable tool for studying and monitoring the Earth's surface.

Here are some advantages of COP-DEM:

Global scale: COP-DEM covers the entire Earth's land surface.
High resolution: COP-DEM provides data at 30m and 90m resolution.
High precision: COP-DEM has one of the highest plan and elevation accuracy DEMs.
Open source: COP-DEM is free and publicly available.

COP-DEM can be used in a variety of applications, including:

Topography
Land Use Monitoring
disaster management
Traffic Regulation
City planning
Environmental monitoring

COP-DEM is an invaluable tool for studying and monitoring the Earth's surface. It has the advantages of global scope, high resolution, high precision, and open source.

Dataset ID:

COPDEM/GLO30

Time frame: 2015-2015

Scope: Global

Source: ESA Copernicus panda website

Copy code snippet:

var images = pie.ImageCollection("COPDEM/GLO30")

band:

name	resolution(m)	Elevation range (m)	invalid value	coverage
B1	30	-12000~9000	-9999	worldwide

date

string

image date

code:

/**
* @File    :   COPDEM_GLO30m
* @Time    :   2023/3/14
* @Author  :   piesat
* @Version :   1.0
* @Contact :   400-890-0662
* @License :   (C)Copyright 航天宏图信息技术股份有限公司
* @Desc    :   加载COPDEM 30米数据
*/

//加载区域范围 
/*color:#fffafa*/
var geometry0 = pie.Geometry.Polygon([
    [
        [
            101.4008209754989,
            46.60282587583711
        ],
        [
            134.80984351708895,
            46.60282587583711
        ],
        [
            134.80984351708895,
            17.79181922066016
        ],
        [
            101.4008209754989,
            17.79181922066016
        ],
        [
            101.4008209754989,
            46.60282587583711
        ]
    ]
], null);

//加载COPDEM DEM数据
var copdem = pie.ImageCollection('COPDEM/GLO30')
                .filterBounds(geometry0)
                .select("B1")
                .mosaic()
                .clip(geometry0);
print(copdem);

//定位地图中心
Map.centerObject(copdem, 2)
//加载显示数据
Map.addLayer(copdem, {min:0, max:3000, palette: [
        "#000000","#023858","#006837","#1a9850","#66bd63","#a6d96a",
        "#d9ef8b","#ffffbf","#fee08b","#fdae61","#f46d43","#d73027"]}, "copdem");

Data reference:

Copernicus DEM - Global and European Digital Elevation Model (COP-DEM). https://spacedata.copernicus.eu/collections/copernicus-digital-elevation-model.

Copernicus DEM 30/90m dataset

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