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xDEM Plugin QGIS

This plugin allows you to perform processing on Digital Elevation Models (DEMs), it is part of the xDEM Python package, a collaboration between CNES (the French space agency) and GlacioHack (a group of glaciology researchers).

Installation

The plugin is available on the official QGIS portal, here are the installation steps:

  1. In QGIS go to Plugins > Manage and Install Plugins... > Not installed.
  2. Search for xDEM.
  3. Click on Install Plugin.

If you need a specific version, you may download it directly from the QGIS website.

  1. Search for xDEM.
  2. Download the ZIP file corresponding to the desired version.
  3. In QGIS, go to Plugins > Manage and Install Plugins... > Install plugin from zip.

It will take a few minutes for the dependencies to install properly, do not force QGIS to close.

Once installation is complete, xDEM will appear in the processing toolbox.

Available processing

All the algorithms can be accessed through the QGIS Processing Toolbox in xDEM, they are organized into five sections.

  • Bias corrections: For correction methods designed to correct both systematic elevation errors and spatially structured random errors.
  • Coregistration: For affine transformations, these can include vertical and horizontal translations, rotations and scalings.
  • Terrain attributes: To calculate derivatives of DEMs, such as curvatures.
  • Uncertainty: To visualise potential errors resulting from corrections.
  • Workflows: To run full pipelines and generate detailed reports.

Documentation

Authors

The original contribution was created by Antoine Ould ould-a, the xDEM developers also contributed to the development of the plugin.