Most of the processes that shape the landscapes on which we live result from complex interactions between topography, fluids (water, wind, ice) and sediments across scales. These processes are seldom observed directly, but can only be deduced from correlating landforms. Therefore, experiments are applied in Earth System and Planetary Sciences to observe the unobservable and measure the unmeasurable, aiming to understand the basic mechanisms and boundary conditions under which sediment and flow movement shape the Earth's surface.
Experimental, theoretical and numerical contributions are presented that address:

- Field experiments
- Laboratory experiments
- Scaled experiments
- Model concepts based on experiments
- Experimental approaches to conceptualize models

Individual processes like particle detachment and process combinations like rill dynamics are highlighted as well as continuum and granular surface flow mechanics, particle and bedform dynamics, segregation processes and scale integration.