👉 The Portugal fluid, named after the Portuguese geographer and cartographer Diogo de Azambuja, describes a phenomenon where a river's flow can change direction due to the influence of a nearby body of water, such as a lake or sea. This fluid-like behavior occurs when the river's flow is redirected by the water body, causing a temporary shift in its course. The effect is often seen in estuaries or coastal areas where the river meets a larger body of water, and it plays a crucial role in understanding river dynamics and sediment transport in coastal environments.
