Editing River discharge (basin outlet) (section)

== Geographic / System Context ==
River discharge at basin outlets occurs within the context of river basins, which are defined geographic areas draining precipitation to a common outlet. These basins vary widely in size, climate, geology, and land cover, influencing the timing and magnitude of discharge. Major river basins span continents and encompass diverse ecosystems, from tropical rainforests to arid regions. The geographic scope of this signal is global, encompassing all river basins where hydrometric measurements are available. Basin outlet discharge reflects integrated hydrological processes across the entire catchment area upstream of the measurement point.