Description
Calculate a supplied ecosystem-pool net change and closing mass.
Ecological records need explicit sampling units, detection states, effort denominators, interval geometry and trait/abundance bases. Nondetection differs from absence, and shared sampling-unit labels do not alone diagnose pseudoreplication. A one-axis overlap or single weighted contribution is only a limited component of a broader ecological analysis.
Calculate a supplied ecosystem-pool net change and closing mass.
When to use this tool
Use Ecosystem Pool Transfer Mass Balance Term when you already have openingMass, incomingMass, outgoingMass, additionalLoss and need to calculate a supplied ecosystem-pool net change and closing mass.
How to use the tool and how it works
- Enter openingMass, incomingMass, outgoingMass, additionalLoss. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read netChange, closingMass. Use the output convention below.
Require opening/incoming/outgoing/additionalLoss>=0; net=incoming-outgoing-loss, closing=opening+incoming-outgoing-loss in that left-to-right order.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| openingMass | Opening Mass | Required. Finite number; minimum 0. |
| incomingMass | Incoming Mass | Required. Finite number; minimum 0. |
| outgoingMass | Outgoing Mass | Required. Finite number; minimum 0. |
| additionalLoss | Additional Loss | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| netChange | Net Change | Required. Finite number. |
| closingMass | Closing Mass | Required. Finite number. |
{
"input": {
"openingMass": 100,
"incomingMass": 20,
"outgoingMass": 15,
"additionalLoss": 5
},
"output": {
"netChange": 0,
"closingMass": 100
}
}Limitations and assumptions
- Negative balances are retained. Terms need the same pool, interval and mass basis; no complete ecosystem balance, flux or conservation validity is established.
- 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 original survey records, sampling design, specimens and calibration definitions for an ecological conclusion. Use complete detection, population, community or process models as appropriate; local count rates and source labels do not infer unobserved states or ecological mechanisms.
References
Similar or alternative tools
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