WorldDEM Full Resolution

Provides a worldwide, consistent, and high precision Digital Surface Model (DSM) at 12 m resolution in GeoTIFF format.


Description

A data block that provides access to a Digital Surface Model derived from the TerraSAR-X and TanDEM-X satellites. The data acquisition started in January 2011 and was completed by mid-2015.

See this block on the marketplace.

WorldDEM Full Resolution
WorldDEM Full Resolution

Technical information

Compatible blocks

  • Advanced Water-Related Geohazards Predictor
  • Co-Registration
  • K-means Clustering
  • NDVI Threshold
  • Raster CRS Conversion
  • Raster Tiling
  • Raster Zonal Statistics
  • Sharpening Filter
  • Spectral Data Converter - RGB
  • Temporal Change Detection
  • Time Series Image Statistics
  • Viewshed

Dataset description

WorldDEM is a Digital Surface Model that represents the surface of Earth including buildings, infrastructure and vegetation. This dataset includes hydrological corrections, i.e. flattened water bodies and consistent flow of rivers, as well as shore- and coastline editing. For more information, please refer to the WorldDEM Technical Product Specification.

Geographic coverage

The geographic coverage is global.

Dataset information

SpecificationsDescription
Spatial resolution12 m
Vertical accuracy2 m relative / 2.5 m absolute
Image typeRadar
Acquisition modeBi-static InSAR StripMap mode
Geometric processing levelCorrection of terrain artefacts, such as layover and shadow.
Hydrological correction (editing of water bodies).
Data acquisition period2011 to 2015
Spectral bandX-band
File formatGeoTIFF
Bit depth per pixel32-bit
NoData value-32767
Vertical unitmeters
Coordinate systemHorizontal: WGS84/EPSG:4326
Vertical: EGM2008/EPSG:3855
Can be reused in an UP42 workflowNo

Limitations

The AOI size must be larger than 0.1 km2.

How it works

Supported JSON parametersDefault valueMinMaxExamples
bbox/intersectsnull0.1 km2n.a.Please check the examples from the JSON parameters.

Examples

Example based on a workflow created with the data block WorldDEM Full Resolution:

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Example based on a workflow created with the data block WorldDEM Full Resolution and the processing block Viewshed:

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Capabilities

Output

To know more please check the block capabilities specifications.