Description
Multiply nonnegative depth by nonnegative area for volume.
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.
Multiply nonnegative depth by nonnegative area for volume.
When to use this tool
Use Catchment Precipitation Area Term when you need one explicit water-depth, volume, or accumulation component.
How to use the tool and how it works
- Enter depth, area. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read volume. Use the output convention below.
Multiply nonnegative depth by nonnegative area for volume.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| depth | Depth on the length basis stated above. | Required. Finite number; minimum 0. |
| area | Area on the common unit basis stated above. | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| volume | Volume | Required. Finite number. |
{
"input": {
"depth": 0.01,
"area": 1000
},
"output": {
"volume": 10
}
}Limitations and assumptions
- Use coherent length units so length times area gives volume; no implicit millimeter or square-kilometer conversion, runoff loss, or routing is included.
- 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
- Storm Hyetograph One Bin Volume Term
Multiply depthMm by areaKm2, coveredFraction in [0, 1], and 1000 for volumeM3.
- Rainfall Volume Area Share
Return rainDepth × subarea and subarea/totalArea.