Fluvial bedrock erosion formulas lack validation over space and time. We explore the performance of field-calibrated models at patch-scale (<1) from minutes to centuries. At hour annual scales (in 1-min resolution), we verify predictions using linked discharge, bedload transport at-a-point erosion, together with spatial a mountain streambed. Local linearly scale mass. The unit stream power mode...

This study presents the comparison of experimental results with assumptions used in numerical models. The aim of the field experiments is to test the linear relationship between different hydraulic parameters and soil detachment. For example correlations between shear stress, unit length shear force, stream power, unit stream power and effective stream power and the detachment rate does not rev...

The application of fallout radionuclides in soil erosion and sedimentation investigations has provided a valuable tool for improving the understanding of erosion and sediment transfer processes. However, most studies using fallout radionuclides have focussed on small areas. Increasing acceptance of the important role of fine sediment in degrading aquatic habitats and in the transfer and fat...

[1] Ma’adim Vallis, one of the largest valleys in the Martian highlands, appears to have originated by catastrophic overflow of a large paleolake located south of the valley heads. Ma’adim Vallis debouched to Gusev crater, 900 km to the north, the landing site for the Spirit Mars Exploration Rover. Support for the paleolake overflow hypothesis comes from the following characteristics: (1) With ...

The present study provides valuable new information on the evolution of Sydney estuary by tracing development complete marine–estuarine–fluvial system through a full glacial cycle (Last Interglacial, LIG, to Interglacial). Extensive seismic (361.3-line km) and sedimentological studies provided sound foundation for production detailed litho- seismic-stratigraphic record estuary. In absence relia...

[1] Quantification of denudation in the Transverse Ranges of California permits reconstruction of spatial and temporal variations in erosion that represent both the response and evolution of interacting hillslopes and channels. On the southern front of the San Gabriel Mountains, observational records of the infilling of debris basins and dams define twentieth-century landscape erosion rates ave...

There is significant debate over the rates and types of fluvial activity at the Plio-Pleistocene boundary in the hyperarid Atacama Desert of Chile. To quantify fluvial processes and help resolve this debate, we measure terrestrial cosmogenic nuclide (TCN) (Be and Ne) concentration depth profiles in three settings representing a chronosequence: (1) a late Pliocene alluvial fan representative of ...