Description
Record the stated bound convention of a geomorphic surface age.
Geomorphic measurements distinguish signed coordinates, grain-size scales, profile derivatives and transported-mass or cross-section bases. A supplied datum adjustment or threshold does not detect a landform or establish a process. Plan distance, profile second derivative and slope-normalized curvature are different quantities.
Record the stated bound convention of a geomorphic surface age.
When to use this tool
Use Geomorphic Surface Age Bound Token when checking the stated local landform, sediment, profile or coordinate convention.
How to use the tool and how it works
- Enter surfaceId, ageText, boundConvention. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read token. Use the output convention below.
Require nonempty surface ID, age text and bound-convention wording. Encode the ordered triple as JSON text.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| surfaceId | Surface Id | Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192. |
| ageText | Age Text | Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192. |
| boundConvention | Bound Convention | Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| token | JSON-encoded ordered tuple or literal token under the convention above; not a database lookup or authentication result. | Required. Text; maximum UTF-16 length 8192. |
{
"input": {
"surfaceId": "S17",
"ageText": "12000 years",
"boundConvention": "minimum"
},
"output": {
"token": "[\"S17\",\"12000 years\",\"minimum\"]"
}
}Limitations and assumptions
- Age text and bound semantics are not parsed; no surface date, chronology or geochronological uncertainty is verified.
- 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.
Alternative or Complementary methods
Use calibrated surveys, mapped geometry and suitable complete sediment/terrain models for trends, process interpretation, uncertainty or hazard assessment.
References
Similar or alternative tools
- Sediment Particle Roundness Source Row
Record the source row for a sediment particle-roundness label.
- Grain Class Boundary Closure Token Tool
Resolve one caller-supplied grain-size boundary without selecting a classification scale.