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Next, select each storage that should participate in the continuous sharing system in the Assigned Storages list by selecting the checkbox next to the appropriate storage/s. Note that a storage can be removed from the Assigned Storages by unchecking the checkbox next to the storage name.
NOTE: Need to manually set the inactive storage volume for the assigned storages so that Source can calculate the active volume available for accounts.
Finally, you can define the loss characteristics of each storage in millimetres per day between one or more start- and end-date pairs within the water year. You can also import loss characteristics from a .CSV file formatted as shown in Table 2.
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Table 3. Continuous Sharing, Account parameters
| Attribute | Details |
|---|---|
| Maximum Cap Carryover (Max Cap) | This specifies the maximum proportion of the annual resource cap that the individual account can carry over into the next water year. Note, that the carryover may also be limited by the System Cap Balance Carryover if the total system resource carryover is too high for the water year. |
| Share Factor | Share Factor defines the relationship between orders and the amount that must be released in response to those orders, having regard to losses and gains during transmission:
Accounts with a lower share factor are allocated a larger share of the storage to account for the transmission losses they incur.All share factors at a given priority level within a continuous sharing system are interrelated as follows: |
| Allocation Type (Alloc Type) | Water can be allocated to accounts by Shares or Volume – this is specified in the Allocation Type dropdown list. |
| Number of Shares (# Shares) | If the Shares Allocation Type is selected, this is the number of shares of the conceptual storage allocated to the account. The high and medium priority portions of the storage will be divided based on the number of shares for all high and medium priority account respectively. Once all accounts are configured, the Maximum Balance (which is greyed out) will auto-update to reflect the volume in the storage which is associated with the account. This volume is based on the number of shares for that account and the number of other shares at the same priority level. Note that accounts with a Maximum Balance specified by the user will be allocated first, following that, the remaining active storage capacity will be divided based on the Number of Shares. |
| Maximum Balance (Max Bal) | This field specifies the maximum volume of water that an account holder can store. If the Shares Allocation Type is selected, this value will be automatically calculated. If the Volume Allocation Type is selected, this balance should be configured by the user. The sum of all account maximum balances is equal to the Total Conceptual Storage. |
| Inflow Share (Spec Inf and Inf Share) | The share of inflow to each account is calculated automatically based on the proportion of the active storage capacity allocated to the account (i.e. the Maximum Balance relative to the Conceptual Storage). The share of inflow can be configured manually instead by enabling the Inflow Share check-box and entering an inflow share percentage. Note, that water will be shared between accounts with a user specified inflow share first. The proportion of water remaining will be shared between accounts with automatically calculated inflow shares. |
| Initial Balance (Init Bal) | This is the account balance volume at the start of the simulation. |
| Annual Resource Cap (Spec Cap and Ann Cap) | This cap will limit the annual (water year) volume diverted by the associated account. The maximum cap can be specified for an account by enabling the Annual Resource Cap check-box and entering a volumetric limit (ML). |
| Initial Cap (Init Cap) | This is the account cap volume at the start of the simulation. |