uppströmsområden
An uppströmsområde, often translated as an upstream area or catchment area, refers to the total land and water surface from which precipitation and meltwater drain into a particular river, stream, lake, or other body of water. It encompasses all the tributaries, smaller streams, and land that ultimately contribute flow to a designated point. The concept is fundamental in hydrology, water resource management, and environmental science.
The boundaries of an uppströmsområde are typically defined by topography, specifically by ridges and hills that