ID. An identifier must be specified for the storage here.
Storage capacity type. The storage capacity type of the reservoir must be defined using the drop-down menu. There are two options:
· Elevation-area: Additional storage area is derived directly from the Elevation-Area relationship by using the water level in the reservoir. An Elevation-Area relationship is specified by entering corresponding values of Elevation and Area in the table. Click the Append button to add a row to the table.
· Elevation-volume: Additional storage area is calculated by using the Elevation-Storage volume relationship and the following formula:
(6.20)
where:
- – FlA: Flooded or additional storage area at level ‘i’ or ‘i+1’
- –
- and
- are differences in volumes and levels respectively from values defined in the Elevation-Storage volume table.
Initial surface area. The initial surface area must be defined if Elevation-volume storage capacity type is selected.