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Account Balance Pre Exit: Account balance in pre exit Phase

Total Account Balance: Total amount of account balance from all accounts. Only available at system level.

Available Water:  Sum of available water in allocation account balance and carry over account balance. Each account has two account balance, one is to record allocation balance, the other is to record allocated carryover water balance which is carried over from last water season. Not all the water in these two account balance are available for use, some water can be reserved for special purpose, such as spilling. Only available component can be used by water user. Post post triggers phase but before two carryover triggers

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Carryover Allocated: This is the water carried over from last water year and is allocated to water user in current new water year. 

Total Carryover Balance: Total amount of carryover balance from all accounts. Only available at system level.

Total Carryover allocated: Total amount of carryover allocated to all accounts. Only available at system level.

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 at the end of current water year. It does not include water that has already stayed in carryover account.

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Carryover Start of Water Year: Total amount of water carried over from previous water year to start of current new water year.

Total Carryover Start Of Water Year: Total amount of carryover start of water year from all accounts. Only available at system level.

Total Carryover Balance Post Trigger: Total carry over balance from all accounts in post post trigger phase. Only available at system level.

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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Account Type Spill Volume

Total Account Spill Reduction: Total amount of spill reduction from all accounts for each time step. Only available at system level.

Total  Account Spill Reduction Water Year


Spill reduction Priority: Priority order of spill deducted from a account type. An account type with priority of "1" will have spill deducted before an account type with priority of "2". Only available at account type level

Spill reduction water year: Accumulative spill reduction from start of water year to current time step. It keeps track of water is lost when the dam spills over the water year.

Spillable water: 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 then become available. Post post triggers phase but before two carryover triggers

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 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 Spillable Water: Total amount of spillable water from all spillable accounts. Only available at system level.

Spillable Trigger: This recorder is to keep track of whether an account type is spillable or not. A value of "1" represents it is spillable, otherwise a value of "o" means it is not spillable. Only available at account type level.

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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 This recorder is to keep track of total amount of water that can be used from start of water year to current time step. It includes the water that has already been used.

  •        For spillable water accounts:

                         Total Commitment Commitment = Minimum [(Total allocation water year + Carryover Start of Water Year - Spill Reduction Water Year – Adjustments due to triggers), Usage Cap if any]

  •       For non-spillable water accounts:

                         Total Commitment Commitment = Minimum {[ Minimum (Total allocation water year + Carryover Start of Water Year, Max Effective Allocation Water Year) – Adjustments due to triggers], Usage Cap if any}

  •       For non debit accounts
                  Total Commitment Commitment = Minimum (Total allocation water year + Carryover Start of Water Year– Adjustments due to triggers, modified effective allocation water year)

Total Usage Carryover Water Year: Accumulative usage from carryover accounts from start of water year to current time step. It keeps track of usage of carryover water over the water year

Total Usage From All Paths Water Year: Usage of water from all different sources, including normal allocation, carryover water, off allocation water and water that has been lost on the way to extraction point.

            Total Usage From All Paths Water Year = Total Usage Water Year + Off Allocation Usage Water Year + Total Distribution Loss Water Year

Total Usage Water YearAccumulative usage from both allocation accounts and carryover accounts from start of water year to current time step. Without debit water repayment is deducted from allocation accounts and it is also included in total usage water year.

Total Usage: This is usage of water from both allocation accounts and carryover accounts per each time step. 

Total Water accounts: Sum of remaining water from all accounts from start of water year to current time step. Only available at account types, account hosts and system level. Post post trigger phase but before two carryover triggers.

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Total Water Accounts Post Trigger: Total water accounts in post post trigger phase

Transferred Water Use: Water usage that has been transferred to different account/account type.

Total Transferred Water Use: Total amount of transferred water use from all accounts. Only available at system level.

Truncated CarryOver: carryover that has been truncated due to total amount of allocation and carryover goes beyond the maximum effective allocation cap

                  Truncated carryover =min ( carryover balance,  max ( 0, allocation + carryover - maximum effective allocation cap) )

Total Truncated Carryover: Total amount of truncated Carryover from all accounts. Only available at system level

WDD Repaid: Accumulative repayment of without debit water usage. This recorder is to keep track of repayment of without debit water usage.This repayment is based on allocation level, adjustment to account does not affect it.

WDD Usage: Accumulative usage of without debit diversion water. It keeps track of usage of without debit water over the water year.

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Other Resources

Spill Volumes

Total Account Balance

Total Account Spill Reduction

Total  Account Spill Reduction Water Year

Total Carryover allocated

Total Carryover Balance

Total Carryover Balance Post Trigger

Total Carryover Start Of Water Year

Total Emptied

Total Spillable Water

Total Transferred Water Use

Total Truncated Carryover

Available Storage Volume

Evaporation to End of Season

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