Triggers are used to initiate or cancel certain actions for an account, account host, account type or system in a resource assessment system. This page provides details of the different types of triggers available in Resource Assessment systems, along with types of actions that can be initiated.
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| Condition | Description |
|---|---|
| End of water year | Triggers an action at the end of the water year. |
| Function | Triggers an action using a defined function. The format of a function should be as follows: if( A > B,1,0), where “1” indicates the action will occur and “0” means the action will not happen. |
| Monthly trigger | Tiggers an action for a particular month. You must specify whether to offset from the start or end of the month, along with the number of days. |
| Per-timestep | Triggers an action per a specified number of time-steps. You can choose to reset the repeat interval at the start of each water year. |
| Season | Triggers an action for a specified season. You must define and start and end dates. |
| Specified date | Triggers an action on a specified date. |
| Start of water year | Triggers an action at the start of the water year. You can choose to repeat the action at a specified number of timesteps, and whether to reset the repeat interval at the start of each water year. |
| Storage level | Trigger based on a specified storage level. You must specify the storage, the level and whether the level is rising or falling. |
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- If enabled, Available water = Account balance + Carryover Water.
- If disabled, Available water = Account balance + Carryover Water − Spillable water.
| Parameter | |
|---|---|
| Account Balance | The remaining volume/proportion of water available to an account (not including carryover). |
Carryover | The remaining volume/proportion of water available to an account that was carried over from the previous water year, ie. carryover balance. |
| Carryover Start of Water Year |
| At the start of the water year, the volume of water carried over from the previous water year. | |
| Entitlement | Annual volumetric entitlement for an account. |
| Total Water | Account Balance + Carryover Balance. |
| Available Water in Account Balance or Available Account Balance | For Annual Accounting systems with access to spillable water*: Max(0, Account Balance - Minimum Balance) For Annual Accounting systems without access to spillable water: Max(0, Account Balance - Max(0, Spillable Water - Carryover Balance) - Minimum Balance) For all other resource assessment systems, this parameter is equivalent to Account Balance. |
| Available Carryover | For Annual Accounting systems |
without access to spillable water*: Max (0, Carryover Balance - Spillable water) For Annual Accounting systems |
with access to spillable water and for all other resource assessment systems, this parameter is equivalent to Carryover. | |
| Available Water | For Annual Accounting systems |
with access to spillable water*: Max(0, Account Balance + Carryover Balance - |
Minimum Balance) For Annual Accounting systems with access to spillable water*: Max(0,Account Balance + Carryover Balance - Spillable Water - |
Minimum Balance) For |
all other resource assessment systems, this parameter is equivalent to Total Water. | |
| Order / Use Debit | Water debited from an account. |
| Total Usage Water Year |
*Access to spillable water is set at the Account Type level on the Carryover tab by enabling Water Available While Spillable, see Annual Accounting - Account Type - Carryover..
Adjustment
This trigger adjusts one of several parameters (eg. account balance, or available water) based on a specified percentage or volume. The available methods of adjusting are shown in Figure 2, see Table 1 for explanations. A positive value indicates an addition; a negative values represents a deduction. The example shown in Figure 2 represents an evaporation loss of 5% of available water. This will reduce 5% of available water, so 95% of available water is left in available water balance.
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