This paper presents a new way of quantifying geometries of drainage networks, moving beyond river long profiles to explore the complexity of planform branching river networks. Using the proposed length asymmetry metric, the paper demonstrates that complexity is correlated with landscape aridity, where arid landscapes have less complex networks compared to humid ones, suggesting this metric could be a new way of exploring the impact of climate on Earth's topography.

Nghiem et al. calibrate and validate floc settling velocity models in freshwater, highlighting the controls on rates of sedimentation and organic carbon burial. The findings resolve discrepancies between observations and Stokes law-based models, which rely on floc characteristics like diameter, permeability, and fractal properties. This research advances our understanding of fine particle dynamics and their role in landscape evolution.

Many previous studies have examined the transfer of organic carbon in river systems within suspended sediment (fine particles carried in suspension making the water appear muddy etc..), however, few have looked at how much carbon is transported with bedload (coarser sand and pebbles that bounce along the base of the channel). This paper looks at the fluxes of carbon in the bedload and finds they are a far smaller percentage than that carried as suspended load, but may be more important for long term sinks or stores of carbon as they are more readily deposited in sediments that may become buried for a considerable period of time.

This research letter presents a conceptual model and data from physical experiments for a new mechanism of sediment entrainment on the seafloor during the huge co-seismic motion imposed by the large subduction earthquakes. This new mechanism introduces the concept of sediment entrainment being due to the motion of the sediment bed instead caused my movement of the water above. Furthermore, by identifying the sedimentary fingerprint of megathrust ruptures with high tsunamigenic potential, the authors propose a new approach to constraining the seismic and tsunami hazard in subduction zones.

The paper presents a new approach for reduced effort dune modelling that will be of interest to a broad audience across the geosciences.