Translations:Begriffsdefinitionen/8/en

If such a claim or use is present in a water ressources system, there is generally also the possibility of intervening in the water balance in a regulating manner. In many cases reservoirs are suitable structures for intervening in the water balance due to their balancing effect and practical control possibilities. If there is a use that is directly or indirectly controlled or at least influenced by a reservoir or by means of regulating organs at the reservoir, this is called reservoir operation. For each use an optimal condition exists, which can usually be expressed in the form of a target. These goals are partly competing. For example, for a safe water supply from a reservoir it is optimal to keep as much water as possible. Exactly the opposite is true for flood protection, which requires an empty reservoir to absorb flood water. It is the task of storage operations to find a moderate balance between competing uses.