Description
Divide nonnegative collectedDepth by efficiency in (0, 1], then subtract nonnegative referenceDepth.
Precipitation and evaporation records distinguish water depth, catchment area, volume, and observation duration. Converting among them requires coherent units and a clear measured or modeled basis.
Divide nonnegative collectedDepth by efficiency in (0, 1], then subtract nonnegative referenceDepth.
When to use this tool
Use Rainfall Gauge Catch Efficiency Factor when you need one explicit water-depth, volume, or accumulation component.
How to use the tool and how it works
- Enter collectedDepth, efficiency, referenceDepth. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read correctedDepth, referenceResidual. Use the output convention below.
Divide nonnegative collectedDepth by efficiency in (0, 1], then subtract nonnegative referenceDepth.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| collectedDepth | Collected Depth | Required. Finite number; minimum 0. |
| efficiency | Efficiency | Required. Finite number; maximum 1; strictly above 0. |
| referenceDepth | Reference Depth | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| correctedDepth | Corrected Depth | Required. Finite number. |
| referenceResidual | Reference Residual | Required. Finite number. |
{
"input": {
"collectedDepth": 8,
"efficiency": 0.8,
"referenceDepth": 12
},
"output": {
"correctedDepth": 10,
"referenceResidual": -2
}
}Limitations and assumptions
- Depths share units; collection efficiency is supplied rather than estimated, and correction does not establish gauge accuracy or precipitation truth.
- 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
Check instrument records, unit conversions, temporal coverage, and a complete hydrologic model before interpreting runoff or water availability.
References
Similar or alternative tools
- Gauge Undercatch Supplied Wind Factor
Multiply nonnegative observedDepth by positive correctionFactor and add nonnegative wettingLoss and evaporationLoss.
- Rainfall Depth Gauge Catch Volume
Compute circular opening area, depth times area divided by 1000 for idealCatchMl, then apply efficiency.