Figure 1. Weir, Upstream Reach
Specifying operating targets
Under Operating Targets, both Minimum operating level and Maximum operating level are only used when the storage is configured as a weir. The storage will not release water to satisfy downstream requirements if this results in the water level dropping below the minimum operating level. Likewise, water will be released to prevent the storage rising above the maximum operating level.
Gauged Level and Releases
As for storages, it is possible to overwrite modelled data with observed data in a weir using either Gauged Level and/or Gauged Releases. When you do so, the weir icon changes to indicate this (Figure 2). See Gauged Level and Gauged Releases for more information.
Figure 2. Weir, observed data replaces modelled data
When configuring ordering for a weir, refer to Ordering at storages.
Weirs and constituents
Weirs only currently work with marker constituent routing and does not yet work for Lump constituent routing.
Weirs only work with Piecewise-linear Integral method for processing flows and volume changes.