Description
Return measuredHeight-suppliedReferenceHeight as gap.
Geomorphic geometry uses lengths, areas, volumes, and dimensionless shape ratios to summarize a feature. Grain axes, channel dimensions, and angular units need explicit definitions because similar field names can describe different measurements.
Return measuredHeight-suppliedReferenceHeight as gap.
When to use this tool
Use Terrace Height Reference Gap when you need a geometric summary of a supplied landform or sediment measurement.
How to use the tool and how it works
- Enter measuredHeight, suppliedReferenceHeight. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read gap. Use the output convention below.
Return measuredHeight-suppliedReferenceHeight as gap.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| measuredHeight | Measured Height | Required. Finite number. |
| suppliedReferenceHeight | Supplied Reference Height | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| gap | Difference on the stated unit and subtraction basis. | Required. Finite number. |
{
"input": {
"measuredHeight": 12,
"suppliedReferenceHeight": 10
},
"output": {
"gap": 2
}
}Limitations and assumptions
- Inputs share a height unit and reference convention; no datum conversion, terrace identification, chronological correlation, or environmental interpretation is performed.
- 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
Inspect the measured feature and sampling method for the intended geometric definition. Use a spatial model or complete distribution when a single shape ratio or local term is insufficient.
References
Similar or alternative tools
- Terrace Riser Height Datum Gap
Add the respective datum offsets to upper and lower elevations and subtract correctedLower from correctedUpper for riserHeight.
- Valley Width Reference Height Gap
Multiply suppliedWidthGradient by referenceHeight-measuredHeight and add that adjustment to width.