A data block that provides access to a digital terrain model (DTM) derived from the WorldDEM product.
See this block on the marketplace.
This is a restricted block. To use this block, request access.
- Advanced Water-Related Geohazards Predictor
- K-means Clustering
- Raster CRS Conversion
- Raster Tiling
- Raster Zonal Statistics
- Sharpening Filter
- Spectral Data Converter - RGB
- Temporal Change Detection
- Time Series Image Statistics
WorldDEM DTMlite is a DTM that represents the surface of Earth after removing buildings, infrastructure and vegetation. For more information, please refer to the WorldDEM DTMlite Technical Product Specification.
The geographic coverage is global.
|Spatial resolution||24 m|
|Acquisition mode||Bi-static InSAR StripMap mode|
|Geometric processing level||Correction of terrain artefacts, such as layover and shadow.|
Hydrological correction (editing of water bodies).
Removal of surface features (vegetation, infrastructure, buildings).
|Absolute vertical accuracy||2.5 m (90% linear error)|
|Absolute horizontal accuracy||< 6 m (90% circular error)|
|Relative vertical accuracy||< 4 m (90% linear point-to-point error within an area of 1° x 1°)|
|Data acquisition period||2011-2015|
|Bit depth per pixel||32-bit|
|Coordinate system||Horizontal: WGS84/EPSG:4326|
|Can be reused in an UP42 workflow||No|
The AOI must be larger than 0.1 km2.
How it works
|Supported JSON parameters||Default value||Min||Max||Examples|
|0.1 km2||n.a.||Please check the examples from the JSON parameters.|
Example based on a workflow created with the data block WorldDEM DTMlite:
[ "dtm" ]
To know more please check the block capabilities specifications.