The spatial distribution of Chalcolithic settlements in the East Lower Danube Plain (SE Romania) shows markedly higher densities along small river valleys with low modern discharges, such as the Călmățui, Mostiștea, and Teleorman, which originate in the upper plains (150–300 m a.s.l.). In contrast, valleys of larger Carpathian-sourced rivers (e.g., Buzău, Ialomița, Argeș), host far fewer settlements. Our research explores whet...

At river mouths, fluvial jets and longshore currents (LSCs) generated by waves interact hydrodynamically. This idealized numerical modeling study simulates a large number of hydro-morphodynamic conditions (650) to explore the emergent hydrodynamics determined by different mouth bar volumes and geometries, river discharge, wave heights, and directions and their potential stress on river-mouth development. We find that in the ab...