Page Comparison

...

The steps involved in processing a dead division are as follows:

1. Calculate the final storage for each owner, Storage(o, t), using equation (14):

   Equation 80	Image Added

2. Fixed losses are adjusted so that mass balance can be achieved when the owner has the configured ratio of dead storage, using equations (54), (55), and (56).

   1. Calculate how much each owner has in excess of the final storage:

      Equation 81	Image Added

   2. Set each owner’s surplus or deficit:

      Equation 82	Image Added

      Equation 83	Image Added

   3. Pass owner surpluses and deficits to the Borrow method (Refer to Borrow and Payback - SRG for more information). This will return how much owners borrowed or lent (OwnerBorrowed(o), OwnerLent(o)).

   4. Adjust the fix losses to account for borrowing:

      Equation 84	Image Added

      Equation 85	Image Added

3. Calculate each owner’s share of the proportional lateral flux (Loss_prop(o)) using equation (43).

   1. If the time series flux is specified to be shared proportionally:

      Equation 86	Image Added

   2. If other lateral fluxes are to be shared proportionally:
      For each of groundwater, net evaporation fluxes and, if Murray-style losses are not being modelled, flow based flux (Flux_GW, Flux_NE, Flux_flow ):  

      Equation 87	Image Added

Live division

Figure 3 provides an overview of the procedure.  The steps are explained in more detail below.

Figure 3. Flowchart- of main steps in processing a live division in a time step

Image Added

The steps involved in processing a live division are as follows:

1. If the division is transitioning from dead to live (i.e. State_t-1 = Dead) and Storage(t - 1) < Storage_dsMAX, Storage(t - 1), and the fixed lateral flux for each owner, Loss_fixed(o), are adjusted as described in the Division transitioning from dead to live section under Ownership adjustments (equations (47), (48), (49) and (50) above).  The steps are:

   1. Adjust each owner’s fixed lateral flux to include the volume to fill dead storage

   2. Equation 88

   3. Set the apparent storage for last time step to the maximum dead storage.

   4. Set the apparent storage for each owner at the last time step to their share of the maximum dead storage.

2. Calculate the total ‘live’ storage for reporting (and use in further calculations), where Storage_live = Storage(t) - Storage_dsMAX as per equation (20).
3. Calculate trial storage volumes for each owner (that assume no high flow loss):
4. If there is a high flow loss (Loss_HF > 0):
5. Calculate each owner’s share of each proportional lateral flux for reporting using equation (20), after rearranging so the term Loss_prop is on the right hand side (i.e. by rearranging to match the form of equation (13)):

Data

Input data

Details on data requirements are provided in the Source User Guide.

...