Catchments as Organised Systems

Welcome to the research unit CAOS

The overall objective of the research unit is to provide a new framework for building hydrological models that allows a much more realistic representation of the surface and especially subsurface architecture of catchments at the lower mesoscale (10–200 km²).

The key methodology is to combine:

From catchments as organised systems to models based on functional units

Key theoretical objective is to develop a model and mathematical framework that allows better integration of this information into the model identification process and thus faciitates communication between experimentalists and modellers. Research will be conducted in the hydrological observatory "Attert basin" in western Luxembourg that has been operated by the Gabriel Lippmann Research Institute (now Luxembourg Institute of Science and Technology) since 2003 and is among the best investigated basins in the world.

For more information, read our project description.

The multi-disciplinary subprojects:

[A] Feedbacks between soils, biota, land management and hydrological processes at different spatiotemporal scales
[B] Non-invasive geophysical and remote sensing methods to map and characterise relevant structures and processes
[C] Understanding and characterizing land surface-atmosphere exchange and feedbacks
[D] Spatio-temporal dynamics of water storage, mixing and release
[E] Towards consistent predictions of water and energy cycles in intermediate scale catchments
[F] Linking landscape structure and rainfall runoff behaviour in a thermodynamic optimality context
[G] Hydrological connectivity and its controls on hillslope and catchment scale stream flow generation

Previous phase of the research group

The fundament of the current project phase was established in the previous one. Here you can find an introduction to the main hypotheses and aspects in phase 1 of the project.