Description
Multiply nonnegative evaporationDepth by meanSurfaceArea for volumeLoss.
A water balance tracks additions, withdrawals, storage changes, and a residual over one declared interval. A remainder can reveal inconsistency without identifying whether it came from leakage, timing, or measurement error.
Multiply nonnegative evaporationDepth by meanSurfaceArea for volumeLoss.
When to use this tool
Use Reservoir Evaporation Level Area Term when you need one transparent water-volume or storage-accounting component.
How to use the tool and how it works
- Enter evaporationDepth, meanSurfaceArea. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read volumeLoss. Use the output convention below.
Multiply nonnegative evaporationDepth by meanSurfaceArea for volumeLoss.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| evaporationDepth | Evaporation Depth | Required. Finite number; minimum 0. |
| meanSurfaceArea | Mean Surface Area | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| volumeLoss | Volume Loss | Required. Finite number. |
{
"input": {
"evaporationDepth": 0.01,
"meanSurfaceArea": 20000
},
"output": {
"volumeLoss": 200
}
}Limitations and assumptions
- Depth and area must use coherent length units; neither evaporation depth nor the mean surface area is estimated or validated.
- 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
Reconcile all flows and storage observations on a common interval and investigate residuals using independent measurements.
References
Similar or alternative tools
- Evaporimeter Pan Coefficient One Day
Multiply nonnegative panDepth by panCoefficient for estimatedDepth and by openWaterArea for estimatedVolume.
- Evaporation Open Water Area Factor
Multiply nonnegative openArea by one minus iceFraction in [0, 1] for exposedArea, then by nonnegative depth for evaporatedVolume.