Fluvial systems refer to the network of rivers and streams that drain water from the land and transport sediment to the oceans. This research area focuses on studying the processes and dynamics of these systems, including erosion, sediment transport, patterns of channel formation, and the interactions between rivers and their surrounding landscapes. Fluvial systems research is important for understanding how rivers shape the earth's surface, influence ecosystems, and respond to human activities such as dam construction and land use changes. Researchers in this field use a combination of field observations, laboratory experiments, and mathematical models to investigate the behavior of fluvial systems and their impacts on the environment.