Glossary
The English version of our glossary is currently under construction and will be regularly updated.
Lagrangian approach
Measurements are taken along the path (of the trajectory). The measuring point moves with the subject.
In the Lagrangian approach, measurements are not taken at a fixed point but rather along the path of what is referred to as a trajectory. The analysis of the measurements follows this trajectory. Examples include autonomous measuring systems (=buoys), which measure the properties and position of the sea ice as it drifts through the polar regions and changes with the seasons.