A Reservoir is an element with one or more inflow and one computed outflow. Inflow comes from other elements in the Basin Model. If there is more than one inflow, all inflow is added together before computing the outflow. It is assumed that the water surface in the reservoir pool is level. Several methods are available for defining the storage properties of the reservoir. The element can be used to model reservoirs, lakes, and ponds. Unregulated Outputs can also be computed for elements located downstream of reservoirs.  Access the Component Editor by clicking the Reservoir Element icon on the Components tab of the Watershed Explorer (see figure).

Reservoir Component Editor using the outflow curve routing method with a storage-discharge function