Rivers and their floodplains are among the most altered landscapes on Earth, yet they provide critical ecosystem services—sediment routing, carbon storage, groundwater recharge, flood attenuation, and biodiversity support. Decades of channelization, flow regulation, and riparian removal have disrupted the lateral and vertical connectivity that sustains floodplain function. Growing investment in river and floodplain restoration demands a quantitative, process-based understanding of how these systems function where they remain relatively unaltered and how they respond to interventions across multiple spatial and temporal scales.

This session invites contributions that advance understanding of river–floodplain dynamics across natural and managed systems Topics may include sediment and wood dynamics, floodplain evolution, system responses to restoration activities such as dam removal, levee setbacks, and channel remeandering, and linkages between physical recovery and ecological or biogeochemical function. We welcome studies spanning field, experimental, and numerical approaches, and encourage submissions from early-career researchers and underrepresented groups.

• H - Hydrology
• NH - Natural Hazards
• NS - Near Surface Geophysics