Description
Return eligibleArea = enrolledArea*verifiedFraction, payment = eligibleArea*paymentPerArea and netBenefit = payment-fixedParticipationCost.
Environmental payment and credit arithmetic depends on eligibility, allocation, withholding and sign conventions. A supplied verification flag or accounting label does not establish that a payment, permit or credit is legally valid or actually available.
Return eligibleArea = enrolledArea*verifiedFraction, payment = eligibleArea*paymentPerArea and netBenefit = payment-fixedParticipationCost.
When to use this tool
Use Watershed Payment Landholder Area Term when checking a specified allocation, charge or payment balance.
How to use the tool and how it works
- Enter enrolledArea, verifiedFraction, paymentPerArea, fixedParticipationCost. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read eligibleArea, payment, netBenefit. Use the output convention below.
Require nonnegative enrolledArea and fixedParticipationCost and verifiedFraction in [0,1]. Return eligibleArea = enrolledArea*verifiedFraction, payment = eligibleArea*paymentPerArea and netBenefit = payment-fixedParticipationCost. paymentPerArea is currency per eligible area on the same area unit.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| enrolledArea | Enrolled Area | Required. Finite number; minimum 0. |
| verifiedFraction | Verified Fraction | Required. Finite number; minimum 0; maximum 1. |
| paymentPerArea | Payment Per Area | Required. Finite number. |
| fixedParticipationCost | Fixed Participation Cost | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| eligibleArea | Eligible Area | Required. Finite number. |
| payment | Payment | Required. Finite number. |
| netBenefit | Net Benefit | Required. Finite number. |
{
"input": {
"enrolledArea": 50,
"verifiedFraction": 0.8,
"paymentPerArea": 100,
"fixedParticipationCost": 500
},
"output": {
"eligibleArea": 40,
"payment": 4000,
"netBenefit": 3500
}
}Limitations and assumptions
- The verification fraction and price are supplied, not independently established. Signed payment rates are accepted; the result is a local financial term, not a contract entitlement or complete landholder opportunity-cost assessment.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Review the applicable agreement or program rules and reconcile the full ledger before treating a calculated amount as payable or saleable.
References
Similar or alternative tools
- Ecosystem Service Area Price One Year
Return grossValue = area*annualValuePerArea*effectiveFraction and netValue = grossValue-displacementCost.
- Emissions Charge Free Allocation Gap Term Tool
Calculate emissions charge free allocation gap term from explicit caller-supplied inputs.