Description
Use endReading-startReading without reset, or postResetReading alone when reset is declared.
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.
Use endReading-startReading without reset, or postResetReading alone when reset is declared.
When to use this tool
Use Gauge Accumulation Interval Depth when you need one explicit water-depth, volume, or accumulation component.
How to use the tool and how it works
- Enter startReading, endReading, resetOccurred, postResetReading. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read depth, usedReset. Inspect usedReset before interpreting the associated values.
Require nonnegative readings and an increasing counter when resetOccurred is false. Use endReading-startReading without reset, or postResetReading alone when reset is declared.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| startReading | Start Reading | Required. Finite number. |
| endReading | End Reading | Required. Finite number. |
| resetOccurred | Reset Occurred | Required. Boolean. |
| postResetReading | Depth used by itself when resetOccurred, not added to a pre-reset increment. | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| depth | Depth on the length basis stated above. | Required. Finite number. |
| usedReset | Used Reset | Required. Boolean. |
{
"input": {
"startReading": 10,
"endReading": 15,
"resetOccurred": false,
"postResetReading": 0
},
"output": {
"depth": 5,
"usedReset": false
}
}Limitations and assumptions
- The reset branch omits any pre-reset accumulation; it is a caller-selected fallback, not a complete reconstruction of an interval that crossed reset.
- 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
- Rainfall Accumulation Reset Increment
Add the two monotonic segment increments around one declared reset.
- Rainfall Tip Resolution Uncertainty Bound
Multiply nonnegative integer tips by positive depthPerTip for recordedDepth and lowerDepth.