Description
Record the source row for a sediment particle-roundness label.
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 source row for a sediment particle-roundness label.
When to use this tool
Use Sediment Particle Roundness Source Row when checking the stated local landform, sediment, profile or coordinate convention.
How to use the tool and how it works
- Enter particleId, suppliedRoundnessText, referenceScale. 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 particle ID, supplied roundness text and reference scale. Encode the ordered triple as JSON text.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| particleId | Particle Id | Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192. |
| suppliedRoundnessText | Supplied Roundness Text | Required. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192. |
| referenceScale | Reference Scale | 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": {
"particleId": "P17",
"suppliedRoundnessText": "subrounded",
"referenceScale": "scale S4"
},
"output": {
"token": "[\"P17\",\"subrounded\",\"scale S4\"]"
}
}Limitations and assumptions
- Roundness is not measured or classified, and the named scale is not validated against an image or geological standard.
- 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
- Geomorphic Surface Age Bound Token
Record the stated bound convention of a geomorphic surface age.
- Grain Class Boundary Closure Token Tool
Resolve one caller-supplied grain-size boundary without selecting a classification scale.