Our session addresses the generation of signals by tectonic, climatic, base-level, and autogenic processes; their spatial transmission from sources to downstream sinks within fluvial systems; and their temporal preservation or erosion in the stratigraphic record. Terrestrial archives and landforms are fundamental for reconstructing past climatic and tectonic conditions, yet experimental and numerical studies demonstrate that many signals are modified, buffered, or erased during transfer.

The interplay between weathering, denudation, deposition, and preservation makes fluvial source-to-sink signal propagation research inherently multidisciplinary, particularly across sedimentology and geomorphology. For example, lithological properties and weathering rates determine erodibility and system response times, while basin configuration impacts downstream channel dynamics, sediment delivery, and the character of sedimentary variability. Advancing understanding of these interactions is essential to constrain system sensitivity across timescales, and the preservation potential of different signal types.

We invite contributions from projects that advance knowledge of Earth surface dynamics in response to tectonic, climatic, environmental, and weathering controls, with a particular emphasis on integrative approaches that link geomorphic processes, sedimentary archives, and stratigraphic preservation.