This block provides access to a digital terrain model (DTM) derived from the WorldDEM product.
|Advanced Water-Related Geohazards Predictor|
|Export Data (Raster)|
|Raster CRS Conversion|
|Raster Zonal Statistics|
|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||32 bits per pixel|
|Coordinate System||Horizontal: WGS84/EPSG 4326|
Vertical: EGM2008/EPSG 3855
|Can be reused in an UP42 workflow||No|
- The AOI size must be larger than 0.1 square kilometers.
- Users who want to get access should register and go through a KYC compliance process.
- The access to this data block is currently not possible for users with UP42 individual accounts.
|Supported JSON parameters||Default value||Min||Max||Examples|
|0.1 sq. km.||n.a.||Please check the examples from the JSON parameters.|
Example based on a workflow created with the data block WorldDEM DTMlite:
For more information, please read the block description from the marketplace.