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Account Adjustment: Sum of Account adjustment due to adjustment triggers (exclude spill adjustment). Post Exit Phase. An example is to use an adjustment trigger to subtract evaporation loss from account.
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Available Water in Account Balance: This is available water that can be used in allocation account balance (exclude non available spillable water).
Available Water in Carryover: This is available water that can be used in carryover account balance (exclude non available spillable water).
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Carryover Allocated： This is the water carried over from last water year and is allocated to water user in a current new water year. For the total amount of water carried over from last water year, how much can be allocated is defined by modeller in "Carryover" column in Available Resource Versus Allocation ( ARA ) table.
Carryover Next Year Trigger Total/Addition to Carryover End of Water Year: Water that can be carried over from allocation account balance to next water year due to carry over trigger at the end of current water year. It does not include water that has already stayed in carryover account.
Carryover Scalar: This is calculated by the parameter defined by modeller in "Carryover" column in ARA table. It represents allocation percentage of water carried over from last water yearis used to reduce carryover commitment. The product of the carryover scalar and carryover start of water year is the carryover commitment at the start of the model run for the account. The carryover scalar is reset to 0 at the beginning of each water year, and increased as resources allow the commitment to be met (in accordance with the ARA table).
Carryover Start of Water Year: Total amount of water carried over from last previous water year to start of a current new water year
Change in Allocation: Difference in allocation volume for current time step compared to last time step. Allocation level may change after each reassessment.
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Spill reduction water year: Accumulative spill reduction from start of water year to current time step
Spillable water: Water in accounts that can be deducted for spill
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Any carryover or allocations above water share volume. It keeps track of any water that can be lost if the dam spills. Spillable water can not be used or traded until it is recognized as low risk of spill and spillable water will become available.
There are two different rules for calculation of Spillable water:
- Total water - 100%: The calculation is made based on the state of the Water Available While Spillable checkbox:
- If enabled, Spillable water = max(0, Total allocation water year + Carryover start of water year − 100% entitlement − Total spill reduction water year − Total usage from carryover water year); or
- If disabled, Spillable water = max(0, Total allocation water year + Carryover start of water year − 100% entitlement − Total spill reduction water year). In this case, spillable water increases with allocation.
- Carryover - Use: In this case, Spillable water = Carryover start of water year − Total usage carryover water year − Total spill reduction water year.
Total Account Adjustment Water Year: Accumulative accounts adjustment from start of water year to current time step
Total Allocation Water Year: Total amount of water that has been allocated to an account in a water year. The allocation is made again entitlements throughout a water year.
Total Commitment: Only available at account type, account host and system level.
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Truncated CarryOver: Truncated carryover water due to maximum effective allocation cap
Truncated carryover = max ( 0, maximum effective allocation cap - allocation - carryover )
WDDRepaid
WDD Usage